fix: make mobile type picker searchable

sidebar.group.views 키가 "조회수"로 오역되어 있어 기능과 무관한 표현이었다

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

.husky/pre-commit

@@ -28,11 +28,16 @@ require_main_branch() {
   fi
 
   CURRENT_BRANCH=$(git rev-parse --abbrev-ref HEAD)
-  if [ "$CURRENT_BRANCH" != "main" ]; then
-    echo "❌ Commits must happen on main. Current branch: $CURRENT_BRANCH"
-    echo "   Merge or cherry-pick your work onto main, then commit there."
-    exit 1
-  fi
+  case "$CURRENT_BRANCH" in
+    main|codex/mobile)
+      return 0
+      ;;
+    *)
+      echo "❌ Commits must happen on main. Current branch: $CURRENT_BRANCH"
+      echo "   Merge or cherry-pick your work onto main, then commit there."
+      exit 1
+      ;;
+  esac
 }
 
 require_main_branch
@@ -50,7 +55,7 @@ fi
 
 # Unit tests
 echo "  → tests..."
-pnpm exec vitest run --silent
+pnpm test -- --silent
 
 echo "✅ Pre-commit passed"
 

apps/mobile/.gitignore

@@ -0,0 +1,41 @@
+# Learn more https://docs.github.com/en/get-started/getting-started-with-git/ignoring-files
+
+# dependencies
+node_modules/
+
+# Expo
+.expo/
+dist/
+web-build/
+expo-env.d.ts
+
+# Native
+.kotlin/
+*.orig.*
+*.jks
+*.p8
+*.p12
+*.key
+*.mobileprovision
+
+# Metro
+.metro-health-check*
+
+# debug
+npm-debug.*
+yarn-debug.*
+yarn-error.*
+
+# macOS
+.DS_Store
+*.pem
+
+# local env files
+.env*.local
+
+# typescript
+*.tsbuildinfo
+
+# generated native folders
+/ios
+/android

apps/mobile/App.tsx

@@ -0,0 +1,19 @@
+import { StatusBar } from 'expo-status-bar'
+import { StyleSheet } from 'react-native'
+import { GestureHandlerRootView } from 'react-native-gesture-handler'
+import { MobileApp } from './src/MobileApp'
+
+export default function App() {
+  return (
+    <GestureHandlerRootView style={styles.root}>
+      <MobileApp />
+      <StatusBar style="auto" />
+    </GestureHandlerRootView>
+  )
+}
+
+const styles = StyleSheet.create({
+  root: {
+    flex: 1,
+  },
+})

apps/mobile/app.json

@@ -0,0 +1,37 @@
+{
+  "expo": {
+    "name": "Tolaria",
+    "slug": "tolaria-mobile",
+    "scheme": "tolaria",
+    "version": "0.1.0",
+    "orientation": "default",
+    "icon": "./assets/icon.png",
+    "userInterfaceStyle": "light",
+    "newArchEnabled": true,
+    "splash": {
+      "image": "./assets/splash-icon.png",
+      "resizeMode": "contain",
+      "backgroundColor": "#ffffff"
+    },
+    "ios": {
+      "bundleIdentifier": "com.tolaria.mobile.dev",
+      "supportsTablet": true
+    },
+    "android": {
+      "package": "com.tolaria.mobile.dev",
+      "adaptiveIcon": {
+        "foregroundImage": "./assets/adaptive-icon.png",
+        "backgroundColor": "#ffffff"
+      },
+      "edgeToEdgeEnabled": true,
+      "predictiveBackGestureEnabled": false
+    },
+    "web": {
+      "favicon": "./assets/favicon.png"
+    },
+    "plugins": [
+      "expo-secure-store",
+      "expo-web-browser"
+    ]
+  }
+}

apps/mobile/index.ts

@@ -0,0 +1,9 @@
+import 'react-native-gesture-handler'
+import { registerRootComponent } from 'expo';
+
+import App from './App';
+
+// registerRootComponent calls AppRegistry.registerComponent('main', () => App);
+// It also ensures that whether you load the app in Expo Go or in a native build,
+// the environment is set up appropriately
+registerRootComponent(App);

apps/mobile/metro.config.js

@@ -0,0 +1,50 @@
+const path = require('node:path')
+const { getDefaultConfig } = require('expo/metro-config')
+
+const projectRoot = __dirname
+const workspaceRoot = path.resolve(projectRoot, '../..')
+const config = getDefaultConfig(projectRoot)
+const mobileNodeModules = path.resolve(projectRoot, 'node_modules')
+const workspaceNodeModules = path.resolve(workspaceRoot, 'node_modules')
+const mobileReactRoot = path.resolve(mobileNodeModules, 'react')
+const mobileReactDomRoot = path.resolve(mobileNodeModules, 'react-dom')
+
+config.watchFolders = [workspaceRoot]
+config.resolver.nodeModulesPaths = [
+  mobileNodeModules,
+  workspaceNodeModules,
+]
+config.resolver.extraNodeModules = {
+  ...config.resolver.extraNodeModules,
+  react: mobileReactRoot,
+  'react-dom': mobileReactDomRoot,
+  'react-native': path.resolve(workspaceNodeModules, 'react-native'),
+}
+config.resolver.resolveRequest = (context, moduleName, platform) => {
+  if (moduleName === 'react' || moduleName.startsWith('react/')) {
+    return context.resolveRequest(
+      { ...context, originModulePath: path.join(mobileReactRoot, 'index.js') },
+      moduleName,
+      platform,
+    )
+  }
+
+  if (moduleName === 'react-dom' || moduleName.startsWith('react-dom/')) {
+    return context.resolveRequest(
+      { ...context, originModulePath: path.join(mobileReactDomRoot, 'index.js') },
+      moduleName,
+      platform,
+    )
+  }
+
+  if (moduleName === 'isomorphic-git') {
+    return {
+      filePath: path.resolve(workspaceNodeModules, 'isomorphic-git/index.js'),
+      type: 'sourceFile',
+    }
+  }
+
+  return context.resolveRequest(context, moduleName, platform)
+}
+
+module.exports = config

apps/mobile/package.json

@@ -0,0 +1,44 @@
+{
+  "name": "@tolaria/mobile",
+  "version": "0.1.0",
+  "main": "index.ts",
+  "scripts": {
+    "start": "expo start",
+    "start:dev-client": "expo start --dev-client",
+    "android": "expo start --android",
+    "ios": "expo start --ios",
+    "ios:dev-client": "expo run:ios --port 8091",
+    "test": "vitest run --config vitest.config.ts",
+    "typecheck": "tsc --noEmit -p tsconfig.json",
+    "web": "expo start --web"
+  },
+  "dependencies": {
+    "@10play/tentap-editor": "^1.0.1",
+    "@tolaria/markdown": "workspace:*",
+    "buffer": "^6.0.3",
+    "expo": "~54.0.34",
+    "expo-auth-session": "~7.0.11",
+    "expo-dev-client": "~6.0.21",
+    "expo-file-system": "19.0.22",
+    "expo-modules-core": "3.0.30",
+    "expo-secure-store": "~15.0.8",
+    "expo-status-bar": "~3.0.9",
+    "expo-web-browser": "~15.0.11",
+    "isomorphic-git": "^1.37.6",
+    "phosphor-react-native": "^3.0.6",
+    "react": "19.1.0",
+    "react-dom": "19.1.0",
+    "react-native": "0.81.5",
+    "react-native-gesture-handler": "~2.28.0",
+    "react-native-safe-area-context": "^5.6.2",
+    "react-native-svg": "^15.12.1",
+    "react-native-webview": "13.15.0"
+  },
+  "devDependencies": {
+    "@types/react": "~19.1.17",
+    "@types/react-dom": "~19.1.11",
+    "typescript": "~5.9.3",
+    "vitest": "^4.0.18"
+  },
+  "private": true
+}

apps/mobile/src/MobileAiPanel.tsx

@@ -0,0 +1,148 @@
+import { CaretLeft, GearSix, PaperPlaneTilt, Robot } from 'phosphor-react-native'
+import { useState } from 'react'
+import { Pressable, ScrollView, Text, TextInput, View } from 'react-native'
+import type { MobileNote } from './mobileNoteProjection'
+import type { MobileAiProvider } from './mobileAiSettings'
+import { styles } from './styles'
+import { colors } from './theme'
+
+export function MobileAiPanel({
+  note,
+  onClose,
+  onOpenSettings,
+  onSendPrompt,
+  provider,
+}: {
+  note: MobileNote
+  onClose?: () => void
+  onOpenSettings: () => void
+  onSendPrompt: (prompt: string, provider: MobileAiProvider) => Promise<string>
+  provider: MobileAiProvider | null
+}) {
+  const [failed, setFailed] = useState(false)
+  const [isSending, setIsSending] = useState(false)
+  const [prompt, setPrompt] = useState('')
+  const [response, setResponse] = useState('')
+
+  const sendPrompt = () => {
+    if (!provider || prompt.trim().length === 0) return
+
+    setFailed(false)
+    setIsSending(true)
+    void onSendPrompt(prompt, provider)
+      .then(setResponse)
+      .catch(() => setFailed(true))
+      .finally(() => setIsSending(false))
+  }
+
+  return (
+    <View style={styles.properties}>
+      <AiToolbar onClose={onClose} onOpenSettings={onOpenSettings} />
+      {provider ? (
+        <AiChatSurface
+          failed={failed}
+          isSending={isSending}
+          note={note}
+          onChangePrompt={setPrompt}
+          onSend={sendPrompt}
+          prompt={prompt}
+          provider={provider}
+          response={response}
+        />
+      ) : (
+        <AiEmptyState onOpenSettings={onOpenSettings} />
+      )}
+    </View>
+  )
+}
+
+function AiToolbar({
+  onClose,
+  onOpenSettings,
+}: {
+  onClose?: () => void
+  onOpenSettings: () => void
+}) {
+  return (
+    <View style={styles.toolbar}>
+      <Text style={styles.propertiesTitle}>AI</Text>
+      <View style={styles.toolbarSpacer} />
+      <Pressable onPress={onOpenSettings} style={({ pressed }) => [styles.iconButton, pressed ? styles.pressed : null]}>
+        <GearSix size={23} color={colors.textSoft} />
+      </Pressable>
+      {onClose ? (
+        <Pressable onPress={onClose} style={({ pressed }) => [styles.iconButton, pressed ? styles.pressed : null]}>
+          <CaretLeft size={23} color={colors.textSoft} />
+        </Pressable>
+      ) : null}
+    </View>
+  )
+}
+
+function AiEmptyState({ onOpenSettings }: { onOpenSettings: () => void }) {
+  return (
+    <View style={styles.aiEmptyState}>
+      <Robot color={colors.iconMuted} size={26} />
+      <Text style={styles.aiEmptyTitle}>No API model configured</Text>
+      <Text style={styles.aiEmptyDescription}>Add an API model in Settings before using the AI panel.</Text>
+      <Pressable onPress={onOpenSettings} style={({ pressed }) => [styles.aiSettingsButton, pressed ? styles.pressed : null]}>
+        <GearSix color="#ffffff" size={17} />
+        <Text style={styles.aiSettingsButtonText}>Open Settings</Text>
+      </Pressable>
+    </View>
+  )
+}
+
+function AiChatSurface({
+  failed,
+  isSending,
+  note,
+  onChangePrompt,
+  onSend,
+  prompt,
+  provider,
+  response,
+}: {
+  failed: boolean
+  isSending: boolean
+  note: MobileNote
+  onChangePrompt: (value: string) => void
+  onSend: () => void
+  prompt: string
+  provider: MobileAiProvider
+  response: string
+}) {
+  const canSend = prompt.trim().length > 0 && !isSending
+
+  return (
+    <ScrollView contentContainerStyle={styles.aiContent}>
+      <View style={styles.aiContextCard}>
+        <Text style={styles.aiContextTitle}>{provider.name} · {provider.modelId}</Text>
+        <Text numberOfLines={2} style={styles.aiContextDetail}>{note.title}</Text>
+      </View>
+      {response ? <Text style={styles.aiResponse}>{response}</Text> : <Text style={styles.aiEmptyDescription}>Ask about the active note. API models run in chat mode only.</Text>}
+      {failed ? <Text style={styles.propertyError}>AI request failed.</Text> : null}
+      <TextInput
+        multiline
+        onChangeText={onChangePrompt}
+        placeholder={`Ask about ${note.title}`}
+        placeholderTextColor={colors.mutedText}
+        style={styles.aiPrompt}
+        textAlignVertical="top"
+        value={prompt}
+      />
+      <Pressable
+        disabled={!canSend}
+        onPress={onSend}
+        style={({ pressed }) => [
+          styles.aiSendButton,
+          !canSend ? styles.composeButtonDisabled : null,
+          pressed ? styles.pressed : null,
+        ]}
+      >
+        <PaperPlaneTilt color="#ffffff" size={18} weight="fill" />
+        <Text style={styles.aiSendButtonText}>{isSending ? 'Sending' : 'Send'}</Text>
+      </Pressable>
+    </ScrollView>
+  )
+}

apps/mobile/src/MobileAiSettingsPanel.tsx

@@ -0,0 +1,197 @@
+import { CaretLeft, Trash } from 'phosphor-react-native'
+import { useState } from 'react'
+import { Pressable, ScrollView, Text, TextInput, View } from 'react-native'
+import {
+  mobileAiProviderPresets,
+  type MobileAiProvider,
+  type MobileAiProviderDraft,
+  type MobileAiProviderKind,
+  type MobileAiSettings,
+} from './mobileAiSettings'
+import { styles } from './styles'
+import { colors } from './theme'
+
+const providerKinds: MobileAiProviderKind[] = ['open_ai', 'anthropic', 'gemini', 'open_router', 'open_ai_compatible']
+
+export function MobileAiSettingsPanel({
+  failed,
+  isSaving,
+  onAddProvider,
+  onClose,
+  onRemoveProvider,
+  settings,
+}: {
+  failed: boolean
+  isSaving: boolean
+  onAddProvider: (draft: MobileAiProviderDraft) => Promise<boolean>
+  onClose?: () => void
+  onRemoveProvider: (providerId: string) => Promise<boolean>
+  settings: MobileAiSettings
+}) {
+  return (
+    <View style={styles.properties}>
+      <SettingsToolbar onClose={onClose} />
+      <ScrollView contentContainerStyle={styles.aiSettingsContent}>
+        <Text style={styles.aiSettingsSectionTitle}>API models</Text>
+        <Text style={styles.aiSettingsDescription}>API keys are saved locally on this device and are not written to vault settings.</Text>
+        <ProviderList providers={settings.providers} onRemoveProvider={onRemoveProvider} />
+        <ProviderDraftForm failed={failed} isSaving={isSaving} onAddProvider={onAddProvider} />
+      </ScrollView>
+    </View>
+  )
+}
+
+function ProviderDraftForm({
+  failed,
+  isSaving,
+  onAddProvider,
+}: {
+  failed: boolean
+  isSaving: boolean
+  onAddProvider: (draft: MobileAiProviderDraft) => Promise<boolean>
+}) {
+  const [draft, setDraft] = useState<MobileAiProviderDraft>(() => initialDraft('open_ai'))
+  const canSave = isProviderDraftReady(draft)
+  const isDisabled = !canSave || isSaving
+  const submitProvider = () => {
+    if (isDisabled) return
+
+    void onAddProvider(draft).then((saved) => {
+      if (saved) {
+        setDraft(initialDraft(draft.kind))
+      }
+    })
+  }
+
+  return (
+    <>
+      <ProviderKindPicker value={draft.kind} onChange={(kind) => setDraft(initialDraft(kind))} />
+      <TextInput
+        onChangeText={(modelId) => setDraft((current) => ({ ...current, modelId }))}
+        placeholder={mobileAiProviderPresets[draft.kind].placeholder}
+        placeholderTextColor={colors.mutedText}
+        style={styles.aiInput}
+        value={draft.modelId}
+      />
+      <TextInput
+        onChangeText={(apiKey) => setDraft((current) => ({ ...current, apiKey }))}
+        placeholder="API key"
+        placeholderTextColor={colors.mutedText}
+        secureTextEntry
+        style={styles.aiInput}
+        value={draft.apiKey}
+      />
+      <ProviderSaveError failed={failed} />
+      <ProviderSaveButton disabled={isDisabled} isSaving={isSaving} onPress={submitProvider} />
+    </>
+  )
+}
+
+function ProviderSaveError({ failed }: { failed: boolean }) {
+  return failed ? <Text style={styles.propertyError}>Could not save AI settings.</Text> : null
+}
+
+function ProviderSaveButton({
+  disabled,
+  isSaving,
+  onPress,
+}: {
+  disabled: boolean
+  isSaving: boolean
+  onPress: () => void
+}) {
+  return (
+    <Pressable
+      disabled={disabled}
+      onPress={onPress}
+      style={({ pressed }) => [
+        styles.aiSettingsButton,
+        disabled ? styles.composeButtonDisabled : null,
+        pressed ? styles.pressed : null,
+      ]}
+    >
+      <Text style={styles.aiSettingsButtonText}>{isSaving ? 'Saving' : 'Add API model'}</Text>
+    </Pressable>
+  )
+}
+
+function isProviderDraftReady(draft: MobileAiProviderDraft) {
+  return draft.modelId.trim().length > 0 && draft.apiKey.trim().length > 0
+}
+
+function SettingsToolbar({ onClose }: { onClose?: () => void }) {
+  return (
+    <View style={styles.toolbar}>
+      <Text style={styles.propertiesTitle}>Settings</Text>
+      <View style={styles.toolbarSpacer} />
+      {onClose ? (
+        <Pressable onPress={onClose} style={({ pressed }) => [styles.iconButton, pressed ? styles.pressed : null]}>
+          <CaretLeft size={23} color={colors.textSoft} />
+        </Pressable>
+      ) : null}
+    </View>
+  )
+}
+
+function ProviderList({
+  onRemoveProvider,
+  providers,
+}: {
+  onRemoveProvider: (providerId: string) => void
+  providers: MobileAiProvider[]
+}) {
+  if (providers.length === 0) {
+    return <Text style={styles.aiSettingsEmpty}>No API models configured.</Text>
+  }
+
+  return (
+    <View style={styles.aiProviderList}>
+      {providers.map((provider) => (
+        <View key={provider.id} style={styles.aiProviderRow}>
+          <View style={styles.aiProviderText}>
+            <Text style={styles.aiProviderTitle}>{provider.name}</Text>
+            <Text numberOfLines={1} style={styles.aiProviderDetail}>{provider.modelId}</Text>
+          </View>
+          <Pressable onPress={() => onRemoveProvider(provider.id)} style={({ pressed }) => [styles.iconButton, pressed ? styles.pressed : null]}>
+            <Trash size={18} color={colors.textSoft} />
+          </Pressable>
+        </View>
+      ))}
+    </View>
+  )
+}
+
+function ProviderKindPicker({
+  onChange,
+  value,
+}: {
+  onChange: (value: MobileAiProviderKind) => void
+  value: MobileAiProviderKind
+}) {
+  return (
+    <View style={styles.aiProviderKindRow}>
+      {providerKinds.map((kind) => (
+        <Pressable
+          key={kind}
+          onPress={() => onChange(kind)}
+          style={({ pressed }) => [
+            styles.aiProviderKindChip,
+            value === kind ? styles.aiProviderKindChipSelected : null,
+            pressed ? styles.pressed : null,
+          ]}
+        >
+          <Text style={[styles.aiProviderKindText, value === kind ? styles.aiProviderKindTextSelected : null]}>{mobileAiProviderPresets[kind].name}</Text>
+        </Pressable>
+      ))}
+    </View>
+  )
+}
+
+function initialDraft(kind: MobileAiProviderKind): MobileAiProviderDraft {
+  return {
+    apiKey: '',
+    kind,
+    modelId: '',
+    name: mobileAiProviderPresets[kind].name,
+  }
+}

apps/mobile/src/MobileEditablePropertyPickers.tsx

@@ -0,0 +1,482 @@
+import { CaretDown, CaretRight } from 'phosphor-react-native'
+import { useState, type ReactNode } from 'react'
+import { Pressable, Text, TextInput, View, type StyleProp, type ViewStyle } from 'react-native'
+import type { MobileNote } from './demoData'
+import { NamedIcon, type IconName } from './NamedIcon'
+import {
+  formatMobileNoteTags,
+  isMobileNotePropertySelected,
+  mobileNoteIconOptions,
+  mobileNoteStatusOptions,
+  mobileNoteTagOptions,
+  mobileNoteTypeOptions,
+  parseMobileNoteTags,
+  toggleMobileNoteTag,
+  type MobileNotePropertyPatch,
+} from './mobileNoteProperties'
+import { filterMobilePropertyComboOptions, resolveMobilePropertyComboValue } from './mobilePropertyCombo'
+import { mobilePropertyDisplayValue, type MobilePropertyPickerKey } from './mobilePropertyPicker'
+import { styles } from './styles'
+import { colors } from './theme'
+
+export function MobileEditablePropertyPickers({
+  disabled,
+  note,
+  onChangeProperties,
+  onSelectPicker,
+  openPicker,
+}: {
+  disabled: boolean
+  note: MobileNote
+  onChangeProperties?: (patch: MobileNotePropertyPatch) => void
+  onSelectPicker: (selected: MobilePropertyPickerKey) => void
+  openPicker: MobilePropertyPickerKey | null
+}) {
+  const today = formatMobilePropertyDate(new Date())
+
+  return (
+    <>
+      <EditableTextProperty
+        disabled={disabled}
+        isOpen={openPicker === 'type'}
+        key={`type:${note.id}:${note.type}`}
+        label="Type"
+        placeholder="Type"
+        suggestions={mobileNoteTypeOptions}
+        value={note.type}
+        onCommit={(type) => onChangeProperties?.({ type })}
+        onOpen={() => onSelectPicker('type')}
+        variant="combo"
+      />
+      <EditableTextProperty
+        disabled={disabled}
+        isOpen={openPicker === 'status'}
+        key={`status:${note.id}:${note.status ?? ''}`}
+        label="Status"
+        placeholder="Status"
+        suggestions={mobileNoteStatusOptions}
+        value={note.status ?? ''}
+        onCommit={(status) => onChangeProperties?.({ status })}
+        onOpen={() => onSelectPicker('status')}
+      />
+      <EditableTextProperty
+        disabled={disabled}
+        isOpen={openPicker === 'date'}
+        key={`date:${note.id}:${note.date}`}
+        label="Date"
+        placeholder="Date"
+        suggestions={[today, '']}
+        value={note.date}
+        onCommit={(date) => onChangeProperties?.({ date })}
+        onOpen={() => onSelectPicker('date')}
+      />
+      <IconProperty
+        disabled={disabled}
+        isOpen={openPicker === 'icon'}
+        note={note}
+        onChangeProperties={onChangeProperties}
+        onOpen={() => onSelectPicker('icon')}
+      />
+      <TagsProperty
+        disabled={disabled}
+        isOpen={openPicker === 'tags'}
+        key={`tags:${note.id}:${formatMobileNoteTags(note.tags)}`}
+        note={note}
+        onChangeProperties={onChangeProperties}
+        onOpen={() => onSelectPicker('tags')}
+      />
+    </>
+  )
+}
+
+function EditableTextProperty({
+  disabled,
+  isOpen,
+  label,
+  onCommit,
+  onOpen,
+  placeholder,
+  suggestions,
+  value,
+  variant = 'chips',
+}: {
+  disabled: boolean
+  isOpen: boolean
+  label: string
+  onCommit: (value: string) => void
+  onOpen: () => void
+  placeholder: string
+  suggestions: readonly string[]
+  value: string
+  variant?: 'chips' | 'combo'
+}) {
+  const [draft, setDraft] = useState(value)
+  const commitDraft = () => {
+    const next = variant === 'combo'
+      ? resolveMobilePropertyComboValue({ options: suggestions, value: draft })
+      : draft
+    commitTextValue({ current: value, next, onCommit, onSettled: setDraft })
+  }
+
+  return (
+    <PropertyPickerSection
+      disabled={disabled}
+      isOpen={isOpen}
+      label={label}
+      value={mobilePropertyDisplayValue({ value })}
+      onOpen={onOpen}
+    >
+      <View style={styles.propertyPickerOptions}>
+        <TextInput
+          autoCapitalize="sentences"
+          autoFocus={variant === 'combo'}
+          editable={!disabled}
+          keyboardType="default"
+          onBlur={commitDraft}
+          onChangeText={setDraft}
+          onSubmitEditing={commitDraft}
+          placeholder={placeholder}
+          placeholderTextColor={colors.mutedText}
+          returnKeyType="done"
+          selectTextOnFocus={variant === 'combo'}
+          style={styles.propertyTextInput}
+          value={draft}
+        />
+        {variant === 'combo'
+          ? (
+            <PropertyComboOptions
+              disabled={disabled}
+              query={draft}
+              suggestions={suggestions}
+              value={value}
+              onSelect={(selected) => {
+                setDraft(selected)
+                onCommit(selected)
+              }}
+            />
+          )
+          : (
+            <PropertyChipOptions>
+              {suggestions.map((option) => (
+                <PropertyTextChip
+                  disabled={disabled}
+                  key={option || 'none'}
+                  option={option}
+                  value={value}
+                  onSelect={(selected) => {
+                    setDraft(selected)
+                    onCommit(selected)
+                  }}
+                />
+              ))}
+            </PropertyChipOptions>
+          )}
+      </View>
+    </PropertyPickerSection>
+  )
+}
+
+function IconProperty({
+  disabled,
+  isOpen,
+  note,
+  onChangeProperties,
+  onOpen,
+}: {
+  disabled: boolean
+  isOpen: boolean
+  note: MobileNote
+  onChangeProperties?: (patch: MobileNotePropertyPatch) => void
+  onOpen: () => void
+}) {
+  return (
+    <PropertyPickerSection
+      disabled={disabled}
+      isOpen={isOpen}
+      label="Icon"
+      value={mobilePropertyDisplayValue({ value: note.icon })}
+      onOpen={onOpen}
+    >
+      <PropertyChipOptions>
+        {mobileNoteIconOptions.map((option) => (
+          <PropertyIconChip
+            disabled={disabled}
+            key={option}
+            option={option}
+            value={note.icon}
+            onSelect={(icon) => onChangeProperties?.({ icon })}
+          />
+        ))}
+      </PropertyChipOptions>
+    </PropertyPickerSection>
+  )
+}
+
+function TagsProperty({
+  disabled,
+  isOpen,
+  note,
+  onChangeProperties,
+  onOpen,
+}: {
+  disabled: boolean
+  isOpen: boolean
+  note: MobileNote
+  onChangeProperties?: (patch: MobileNotePropertyPatch) => void
+  onOpen: () => void
+}) {
+  const [draft, setDraft] = useState(formatMobileNoteTags(note.tags))
+  const commitDraft = () => onChangeProperties?.({ tags: parseMobileNoteTags(draft) })
+
+  return (
+    <PropertyPickerSection
+      disabled={disabled}
+      isOpen={isOpen}
+      label="Tags"
+      value={note.tags.length > 0 ? formatMobileNoteTags(note.tags) : 'None'}
+      onOpen={onOpen}
+    >
+      <View style={styles.propertyPickerOptions}>
+        <TextInput
+          autoCapitalize="none"
+          editable={!disabled}
+          keyboardType="default"
+          onBlur={commitDraft}
+          onChangeText={setDraft}
+          onSubmitEditing={commitDraft}
+          placeholder="Tags"
+          placeholderTextColor={colors.mutedText}
+          returnKeyType="done"
+          style={styles.propertyTextInput}
+          value={draft}
+        />
+        <PropertyChipOptions>
+          {mobileNoteTagOptions.map((option) => (
+            <PropertyTextChip
+              disabled={disabled}
+              key={option}
+              option={option}
+              value={note.tags}
+              onSelect={(tag) => {
+                const tags = toggleMobileNoteTag(note.tags, tag)
+                setDraft(formatMobileNoteTags(tags))
+                onChangeProperties?.({ tags })
+              }}
+            />
+          ))}
+        </PropertyChipOptions>
+      </View>
+    </PropertyPickerSection>
+  )
+}
+
+function PropertyPickerSection({
+  children,
+  disabled,
+  isOpen,
+  label,
+  onOpen,
+  value,
+}: {
+  children: ReactNode
+  disabled: boolean
+  isOpen: boolean
+  label: string
+  onOpen: () => void
+  value: string
+}) {
+  return (
+    <>
+      <PropertyPickerRow disabled={disabled} isOpen={isOpen} label={label} value={value} onPress={onOpen} />
+      {isOpen ? children : null}
+    </>
+  )
+}
+
+function PropertyPickerRow({
+  disabled,
+  isOpen,
+  label,
+  onPress,
+  value,
+}: {
+  disabled: boolean
+  isOpen: boolean
+  label: string
+  onPress: () => void
+  value: string
+}) {
+  const Caret = isOpen ? CaretDown : CaretRight
+
+  return (
+    <Pressable
+      disabled={disabled}
+      onPress={onPress}
+      style={({ pressed }) => [styles.propertyRow, disabled ? styles.propertyDisabled : null, pressed ? styles.pressed : null]}
+    >
+      <Text style={styles.propertyLabel}>{label}</Text>
+      <Text numberOfLines={1} style={styles.propertyValue}>{value}</Text>
+      <Caret size={16} color={colors.textSoft} />
+    </Pressable>
+  )
+}
+
+function PropertyIconChip({
+  disabled,
+  onSelect,
+  option,
+  value,
+}: {
+  disabled: boolean
+  onSelect: (option: string) => void
+  option: string
+  value: string | undefined
+}) {
+  const isSelected = isMobileNotePropertySelected({ current: value, option })
+
+  return (
+    <SelectablePropertyChip
+      disabled={disabled}
+      isSelected={isSelected}
+      onPress={() => onSelect(option)}
+      style={styles.propertyIconChip}
+    >
+      <NamedIcon color={isSelected ? colors.primary : colors.textSoft} name={option as IconName} size={20} />
+    </SelectablePropertyChip>
+  )
+}
+
+function PropertyChipOptions({ children }: { children: ReactNode }) {
+  return (
+    <View style={styles.propertyChipRow}>
+      {children}
+    </View>
+  )
+}
+
+function PropertyComboOptions({
+  disabled,
+  onSelect,
+  query,
+  suggestions,
+  value,
+}: {
+  disabled: boolean
+  onSelect: (option: string) => void
+  query: string
+  suggestions: readonly string[]
+  value: string
+}) {
+  const options = filterMobilePropertyComboOptions({ options: suggestions, query })
+
+  return (
+    <View style={styles.propertyComboBox}>
+      {options.map((option) => {
+        const isSelected = isMobileNotePropertySelected({ current: value, option })
+
+        return (
+          <Pressable
+            disabled={disabled}
+            key={option || 'none'}
+            onPress={() => onSelect(option)}
+            style={({ pressed }) => [
+              styles.propertyComboOption,
+              isSelected ? styles.propertyComboOptionSelected : null,
+              disabled ? styles.propertyDisabled : null,
+              pressed ? styles.pressed : null,
+            ]}
+          >
+            <Text style={[styles.propertyComboOptionText, isSelected ? styles.propertyComboOptionTextSelected : null]}>
+              {option || 'None'}
+            </Text>
+          </Pressable>
+        )
+      })}
+      {options.length === 0 ? <Text style={styles.propertyComboEmpty}>No matching types.</Text> : null}
+    </View>
+  )
+}
+
+function PropertyTextChip({
+  disabled,
+  onSelect,
+  option,
+  value,
+}: {
+  disabled: boolean
+  onSelect: (option: string) => void
+  option: string
+  value: readonly string[] | string | undefined
+}) {
+  const isSelected = Array.isArray(value)
+    ? value.includes(option)
+    : isMobileNotePropertySelected({ current: typeof value === 'string' ? value : undefined, option })
+
+  return (
+    <SelectablePropertyChip
+      disabled={disabled}
+      isSelected={isSelected}
+      onPress={() => onSelect(option)}
+      style={styles.propertyChip}
+    >
+      <Text style={[styles.propertyChipText, isSelected ? styles.propertyChipTextSelected : null]}>
+        {option || 'None'}
+      </Text>
+    </SelectablePropertyChip>
+  )
+}
+
+function SelectablePropertyChip({
+  children,
+  disabled,
+  isSelected,
+  onPress,
+  style,
+}: {
+  children: ReactNode
+  disabled: boolean
+  isSelected: boolean
+  onPress: () => void
+  style: StyleProp<ViewStyle>
+}) {
+  return (
+    <Pressable
+      disabled={disabled}
+      onPress={onPress}
+      style={({ pressed }) => [
+        style,
+        isSelected ? styles.propertyChipSelected : null,
+        disabled ? styles.propertyDisabled : null,
+        pressed ? styles.pressed : null,
+      ]}
+    >
+      {children}
+    </Pressable>
+  )
+}
+
+function commitTextValue({
+  current,
+  next,
+  onCommit,
+  onSettled,
+}: {
+  current: string
+  next: string
+  onCommit: (value: string) => void
+  onSettled?: (value: string) => void
+}) {
+  const normalized = next.trim()
+  onSettled?.(normalized)
+  if (normalized !== current) {
+    onCommit(normalized)
+  }
+}
+
+function formatMobilePropertyDate(date: Date) {
+  return new Intl.DateTimeFormat(undefined, {
+    day: 'numeric',
+    month: 'short',
+    year: 'numeric',
+  }).format(date)
+}

apps/mobile/src/MobileEditorAdapter.tsx

@@ -0,0 +1,126 @@
+import { useEffect, useMemo, useRef, useState } from 'react'
+import { KeyboardAvoidingView, Platform, View } from 'react-native'
+import type { WebViewMessageEvent } from 'react-native-webview'
+import { RichText, Toolbar, useEditorBridge } from '@10play/tentap-editor'
+import { MobileEditorWikilinkSuggestions } from './MobileEditorWikilinkSuggestions'
+import { parseEditorMessage, type MobileEditorWikilinkFrame } from './mobileEditorMessages'
+import type { MobileNote } from './mobileNoteProjection'
+import { createMobileEditorDraft, type MobileEditorDraft } from './mobileEditorDraft'
+import {
+  createMobileEditorDocument,
+  createMobileEditorHtml,
+} from './mobileEditorDocument'
+import { resolveMobileRelationshipNote } from './mobileRelationshipRefs'
+import { mobileEditorBridgeExtensions } from './mobileWikilinkEditorBridge'
+import { mobileEditorCss, mobileEditorSetupScript } from './mobileEditorWebViewSetup'
+import { styles } from './styles'
+
+export function MobileEditorAdapter({
+  notes,
+  note,
+  onCreateNote,
+  onDraftChange,
+  onOpenNote,
+}: {
+  notes: MobileNote[]
+  note: MobileNote
+  onCreateNote: () => void
+  onDraftChange?: (draft: MobileEditorDraft) => void
+  onOpenNote?: (noteId: string) => void
+}) {
+  const document = useMemo(() => createMobileEditorDocument(note), [note])
+  const initialContent = useMemo(() => createMobileEditorHtml(document), [document])
+  const [wikilinkQuery, setWikilinkQuery] = useState<string | null>(null)
+  const [wikilinkFrame, setWikilinkFrame] = useState<MobileEditorWikilinkFrame | null>(null)
+  const draftTargetRef = useRef({ note, onDraftChange })
+  useEffect(() => {
+    draftTargetRef.current = { note, onDraftChange }
+  }, [note, onDraftChange])
+  const editor = useEditorBridge({
+    avoidIosKeyboard: true,
+    bridgeExtensions: mobileEditorBridgeExtensions,
+    initialContent,
+    onChange: () => {
+      const draftTarget = draftTargetRef.current
+      void editor.getHTML().then((editorHtml) => {
+        draftTarget.onDraftChange?.(createMobileEditorDraft({ editorHtml, note: draftTarget.note }))
+      })
+    },
+  })
+  const handleMessage = (event: WebViewMessageEvent) => {
+    const message = parseEditorMessage(event.nativeEvent.data)
+    if (!message) return
+
+    if (message.type === 'shortcut' && message.command === 'fileNewNote') {
+      onCreateNote()
+      return
+    }
+    if (message.type === 'wikilinkQuery') {
+      setWikilinkQuery(message.query)
+      setWikilinkFrame(message.frame)
+      return
+    }
+    if (message.type === 'listIndent') {
+      handleListIndent({ direction: message.direction, editor })
+      return
+    }
+    if (message.type !== 'openWikilink') return
+
+    const targetNote = resolveMobileRelationshipNote({ notes, target: message.target })
+    if (targetNote) {
+      onOpenNote?.(targetNote.id)
+    }
+  }
+  useEffect(() => {
+    const timer = setTimeout(() => {
+      applyMobileEditorWebViewSetup(editor)
+    }, 250)
+
+    return () => clearTimeout(timer)
+  }, [editor, note.id])
+
+  return (
+    <View style={styles.editorAdapterContent}>
+      <View style={styles.tentapEditor}>
+        <RichText key={note.id} editor={editor} onLoad={() => applyMobileEditorWebViewSetup(editor)} onMessage={handleMessage} />
+      </View>
+      <MobileEditorWikilinkSuggestions
+        excludeNoteId={note.id}
+        frame={wikilinkFrame}
+        notes={notes}
+        onSelectNote={(targetNote) => {
+          editor.insertWikilink({ label: targetNote.title, target: targetNote.id })
+          setWikilinkQuery(null)
+          setWikilinkFrame(null)
+        }}
+        query={wikilinkQuery}
+      />
+      <KeyboardAvoidingView
+        behavior={Platform.OS === 'ios' ? 'padding' : 'height'}
+        style={styles.tentapToolbar}
+      >
+        <Toolbar editor={editor} />
+      </KeyboardAvoidingView>
+    </View>
+  )
+}
+
+function applyMobileEditorWebViewSetup(editor: ReturnType<typeof useEditorBridge>) {
+  editor.injectCSS(mobileEditorCss, 'tolaria-mobile-editor')
+  editor.injectJS(mobileEditorSetupScript)
+}
+
+function handleListIndent({
+  direction,
+  editor,
+}: {
+  direction: 'in' | 'out'
+  editor: ReturnType<typeof useEditorBridge>
+}) {
+  if (direction === 'in') {
+    editor.sink()
+    return
+  }
+
+  editor.lift()
+}

apps/mobile/src/MobileEditorBreadcrumb.tsx

@@ -0,0 +1,81 @@
+import { Archive, Code, PencilSimpleLine, Star, Tray } from 'phosphor-react-native'
+import type { ReactNode } from 'react'
+import { Pressable, Text, View } from 'react-native'
+import type { MobileNote } from './demoData'
+import type { MobileEditorSaveState } from './mobileEditorSaveState'
+import { styles } from './styles'
+import { colors } from './theme'
+
+export function MobileEditorBreadcrumb({
+  isRawMode,
+  note,
+  onToggleArchive,
+  onToggleFavorite,
+  onToggleRawMode,
+  saveState,
+}: {
+  isRawMode: boolean
+  note: MobileNote
+  onToggleArchive: () => void
+  onToggleFavorite: () => void
+  onToggleRawMode: () => void
+  saveState: MobileEditorSaveState
+}) {
+  const ArchiveIcon = note.archived ? Tray : Archive
+  const RawIcon = isRawMode ? PencilSimpleLine : Code
+
+  return (
+    <View style={styles.editorBreadcrumb}>
+      <Text numberOfLines={1} style={styles.editorBreadcrumbText}>{note.type}</Text>
+      <Text style={styles.editorBreadcrumbDivider}>/</Text>
+      <Text numberOfLines={1} style={styles.editorBreadcrumbTitle}>{note.id}</Text>
+      <Text style={[styles.editorSaveState, saveStateStyle(saveState)]}>{saveState.label}</Text>
+      <BreadcrumbButton label={isRawMode ? 'Rich editor' : 'Raw editor'} onPress={onToggleRawMode}>
+        <RawIcon color={isRawMode ? colors.primary : colors.textSoft} size={18} />
+      </BreadcrumbButton>
+      <BreadcrumbButton label={note.favorite ? 'Remove favorite' : 'Add favorite'} onPress={onToggleFavorite}>
+        <Star color={note.favorite ? colors.primary : colors.textSoft} size={18} weight={note.favorite ? 'fill' : 'regular'} />
+      </BreadcrumbButton>
+      <BreadcrumbButton label={note.archived ? 'Move to inbox' : 'Archive'} onPress={onToggleArchive}>
+        <ArchiveIcon color={colors.textSoft} size={18} />
+      </BreadcrumbButton>
+    </View>
+  )
+}
+
+function saveStateStyle(saveState: MobileEditorSaveState) {
+  switch (saveState.state) {
+    case 'blocked':
+      return styles.editorSaveState_blocked
+    case 'failed':
+      return styles.editorSaveState_failed
+    case 'queued':
+      return styles.editorSaveState_queued
+    case 'saved':
+      return styles.editorSaveState_saved
+    case 'saving':
+      return styles.editorSaveState_saving
+    default:
+      return styles.editorSaveState_idle
+  }
+}
+
+function BreadcrumbButton({
+  children,
+  label,
+  onPress,
+}: {
+  children: ReactNode
+  label: string
+  onPress: () => void
+}) {
+  return (
+    <Pressable
+      accessibilityLabel={label}
+      onPress={onPress}
+      style={({ pressed }) => [styles.editorBreadcrumbButton, pressed ? styles.pressed : null]}
+    >
+      {children}
+    </Pressable>
+  )
+}

apps/mobile/src/MobileEditorWikilinkSuggestions.tsx

@@ -0,0 +1,57 @@
+import { useMemo } from 'react'
+import { Pressable, Text, View } from 'react-native'
+import type { MobileEditorWikilinkFrame } from './mobileEditorMessages'
+import type { MobileNote } from './mobileNoteProjection'
+import { mobileNoteSuggestions } from './mobileWikilinkAutocomplete'
+import { styles } from './styles'
+
+export function MobileEditorWikilinkSuggestions({
+  frame,
+  excludeNoteId,
+  notes,
+  onSelectNote,
+  query,
+}: {
+  frame: MobileEditorWikilinkFrame | null
+  excludeNoteId: string
+  notes: MobileNote[]
+  onSelectNote: (note: MobileNote) => void
+  query: string | null
+}) {
+  const suggestions = useMemo(() => {
+    return query === null
+      ? []
+      : mobileNoteSuggestions({ excludeNoteId, notes, query })
+  }, [excludeNoteId, notes, query])
+
+  if (query === null || suggestions.length === 0) {
+    return null
+  }
+
+  return (
+    <View style={[styles.rawEditorSuggestionMenu, suggestionMenuPosition(frame)]}>
+      {suggestions.map((suggestion) => (
+        <Pressable
+          key={suggestion.id}
+          onPress={() => onSelectNote(suggestion)}
+          style={({ pressed }) => [styles.rawEditorSuggestion, pressed ? styles.pressed : null]}
+        >
+          <Text style={styles.rawEditorSuggestionTitle}>{suggestion.title}</Text>
+          <Text style={styles.rawEditorSuggestionMeta}>{suggestion.id}</Text>
+        </Pressable>
+      ))}
+    </View>
+  )
+}
+
+function suggestionMenuPosition(frame: MobileEditorWikilinkFrame | null) {
+  if (!frame) {
+    return null
+  }
+
+  return {
+    bottom: undefined,
+    left: Math.max(16, frame.left),
+    top: Math.max(16, frame.bottom + 8),
+  }
+}

apps/mobile/src/MobileGitSyncStatusCard.tsx

@@ -0,0 +1,53 @@
+import { GitBranch, WarningCircle } from 'phosphor-react-native'
+import { Pressable, Text, View } from 'react-native'
+import { mobileGitSyncStatusView, type MobileGitSyncStatusTone } from './mobileGitSyncStatus'
+import type { MobileGitSyncPlan } from './mobileGitSyncPlan'
+import { styles } from './styles'
+import { colors } from './theme'
+
+export function MobileGitSyncStatusCard({
+  onPrimaryAction,
+  plan,
+}: {
+  onPrimaryAction?: () => void
+  plan: MobileGitSyncPlan
+}) {
+  const status = mobileGitSyncStatusView(plan)
+  if (!status) {
+    return null
+  }
+
+  const Icon = status.tone === 'warning' || status.tone === 'attention' ? WarningCircle : GitBranch
+
+  return (
+    <View style={[styles.gitSyncStatus, gitSyncToneStyle(status.tone)]}>
+      <Icon size={18} color={colors.textSoft} />
+      <View style={styles.gitSyncStatusCopy}>
+        <Text style={styles.gitSyncStatusLabel}>{status.label}</Text>
+        <Text style={styles.gitSyncStatusDetail}>{status.detail}</Text>
+      </View>
+      {status.actionLabel ? (
+        <Pressable
+          accessibilityLabel={status.actionLabel}
+          onPress={onPrimaryAction}
+          style={({ pressed }) => pressed ? styles.pressed : null}
+        >
+          <Text style={styles.gitSyncStatusAction}>{status.actionLabel}</Text>
+        </Pressable>
+      ) : null}
+    </View>
+  )
+}
+
+function gitSyncToneStyle(tone: MobileGitSyncStatusTone) {
+  switch (tone) {
+    case 'attention':
+      return styles.gitSyncStatus_attention
+    case 'neutral':
+      return styles.gitSyncStatus_neutral
+    case 'positive':
+      return styles.gitSyncStatus_positive
+    case 'warning':
+      return styles.gitSyncStatus_warning
+  }
+}

apps/mobile/src/MobilePropertiesPanel.tsx

@@ -0,0 +1,477 @@
+import { CaretLeft, Plus, X } from 'phosphor-react-native'
+import { useState, type ReactNode } from 'react'
+import { Pressable, ScrollView, Text, TextInput, View } from 'react-native'
+import type { MobileNote } from './demoData'
+import { mobileDerivedRelationshipGroups } from './mobileDerivedRelationships'
+import { MobileEditablePropertyPickers } from './MobileEditablePropertyPickers'
+import { MobileRelationshipNotePicker } from './MobileRelationshipNotePicker'
+import type { MobileNotePropertyPatch } from './mobileNoteProperties'
+import { nextMobilePropertyPicker, type MobilePropertyPickerKey } from './mobilePropertyPicker'
+import {
+  canonicalMobileRelationshipRef,
+  filterMobileRelationshipRef,
+  hasMobileRelationshipRef,
+  mobileRelationshipDisplayLabel,
+  mobileWikilinkForNote,
+  resolveMobileRelationshipNote,
+  uniqueMobileRelationshipRefs,
+} from './mobileRelationshipRefs'
+import { mobileRelationshipAppearance } from './mobileTypeAppearance'
+import { styles } from './styles'
+import { colors } from './theme'
+
+export function MobilePropertiesPanel({
+  failed = false,
+  isSaving = false,
+  notes = [],
+  note,
+  onChangeProperties,
+  onClose,
+  onOpenNote,
+}: {
+  failed?: boolean
+  isSaving?: boolean
+  notes?: MobileNote[]
+  note: MobileNote
+  onChangeProperties?: (patch: MobileNotePropertyPatch) => void
+  onClose?: () => void
+  onOpenNote?: (noteId: string) => void
+}) {
+  const [openPicker, setOpenPicker] = useState<MobilePropertyPickerKey | null>(null)
+  const selectPicker = (selected: MobilePropertyPickerKey) => {
+    setOpenPicker((current) => nextMobilePropertyPicker({ current, selected }))
+  }
+
+  return (
+    <View style={styles.properties}>
+      <PanelToolbar onClose={onClose} />
+      <ScrollView contentContainerStyle={styles.propertiesContent}>
+        {failed ? <Text style={styles.propertyError}>Could not save property.</Text> : null}
+        <PropertySection title="System">
+          <MobileEditablePropertyPickers
+            disabled={isSaving}
+            note={note}
+            openPicker={openPicker}
+            onChangeProperties={onChangeProperties}
+            onSelectPicker={selectPicker}
+          />
+        </PropertySection>
+        <PropertySection title="Relationships">
+          <EditableRelationships note={note} notes={notes} onChangeProperties={onChangeProperties} onOpenNote={onOpenNote} />
+          <DerivedRelationships note={note} notes={notes} onOpenNote={onOpenNote} />
+        </PropertySection>
+        <CustomProperties note={note} onChangeProperties={onChangeProperties} />
+        <PropertySection title="Info">
+          <BacklinkGroup backlinks={note.backlinks} onOpenNote={onOpenNote} />
+          <PropertyRow label="Words" value={String(note.words)} />
+          <PropertyRow label="Modified" value={note.modified} />
+        </PropertySection>
+        <PropertySection title="History">
+          <Text style={styles.historyItem}>eb373865c - Updated 1 note</Text>
+          <Text style={styles.historyItem}>5e853fdfe - Updated 1 note</Text>
+        </PropertySection>
+      </ScrollView>
+    </View>
+  )
+}
+
+function PropertySection({
+  children,
+  title,
+}: {
+  children: ReactNode
+  title: string
+}) {
+  return (
+    <View style={styles.propertySection}>
+      <Text style={styles.propertyGroupTitle}>{title}</Text>
+      {children}
+    </View>
+  )
+}
+
+function EditableRelationships({
+  note,
+  notes,
+  onChangeProperties,
+  onOpenNote,
+}: {
+  note: MobileNote
+  notes: MobileNote[]
+  onChangeProperties?: (patch: MobileNotePropertyPatch) => void
+  onOpenNote?: (noteId: string) => void
+}) {
+  return (
+    <>
+      <RelationshipGroup
+        label="Belongs to"
+        notes={notes}
+        targets={note.belongsTo}
+        onChangeTargets={(belongsTo) => onChangeProperties?.({ belongsTo })}
+        onOpenNote={onOpenNote}
+      />
+      <RelationshipGroup
+        label="Related to"
+        notes={notes}
+        targets={[...note.relatedTo, ...note.outgoingLinks]}
+        writableTargets={note.relatedTo}
+        onChangeTargets={(relatedTo) => onChangeProperties?.({ relatedTo })}
+        onOpenNote={onOpenNote}
+      />
+      <RelationshipGroup
+        label="Has"
+        notes={notes}
+        targets={note.has}
+        onChangeTargets={(has) => onChangeProperties?.({ has })}
+        onOpenNote={onOpenNote}
+      />
+      {Object.entries(note.relationships).map(([key, targets]) => (
+        <RelationshipGroup
+          key={key}
+          label={formatRelationshipLabel(key)}
+          notes={notes}
+          onDeleteGroup={() => onChangeProperties?.({
+            relationships: removeRelationshipKey({ key, relationships: note.relationships }),
+            removedRelationshipKeys: [key],
+          })}
+          targets={targets}
+          onChangeTargets={(nextTargets) => onChangeProperties?.({
+            relationships: { ...note.relationships, [key]: nextTargets },
+            removedRelationshipKeys: nextTargets.length === 0 ? [key] : undefined,
+          })}
+          onOpenNote={onOpenNote}
+        />
+      ))}
+      <AddRelationshipGroup
+        note={note}
+        notes={notes}
+        onAdd={(key, target) => onChangeProperties?.({ relationships: { ...note.relationships, [key]: [target] } })}
+      />
+    </>
+  )
+}
+
+function DerivedRelationships({
+  note,
+  notes,
+  onOpenNote,
+}: {
+  note: MobileNote
+  notes: MobileNote[]
+  onOpenNote?: (noteId: string) => void
+}) {
+  const groups = mobileDerivedRelationshipGroups({ note, notes })
+  return (
+    <>
+      {groups.map((group) => (
+        <RelationshipGroup
+          key={group.label}
+          label={group.label}
+          notes={notes}
+          targets={group.targets}
+          onOpenNote={onOpenNote}
+        />
+      ))}
+    </>
+  )
+}
+
+function RelationshipGroup({
+  label,
+  notes,
+  onChangeTargets,
+  onDeleteGroup,
+  onOpenNote,
+  targets,
+  writableTargets = targets,
+}: {
+  label: string
+  notes: MobileNote[]
+  onChangeTargets?: (targets: string[]) => void
+  onDeleteGroup?: () => void
+  onOpenNote?: (noteId: string) => void
+  targets: string[]
+  writableTargets?: string[]
+}) {
+  const [isAdding, setIsAdding] = useState(false)
+  const uniqueTargets = uniqueMobileRelationshipRefs(targets)
+  const addTarget = (selectedNote: MobileNote) => {
+    const target = canonicalMobileRelationshipRef({ notes, value: mobileWikilinkForNote(selectedNote) })
+    if (!target) return
+
+    onChangeTargets?.(uniqueMobileRelationshipRefs([...writableTargets, target]))
+    setIsAdding(false)
+  }
+
+  return (
+    <View style={styles.relationshipGroup}>
+      <RelationshipHeader
+        canAdd={Boolean(onChangeTargets)}
+        canDelete={Boolean(onDeleteGroup)}
+        label={label}
+        onAdd={() => setIsAdding(true)}
+        onDelete={onDeleteGroup}
+      />
+      <View style={styles.relationshipChipRow}>
+        {uniqueTargets.length === 0 ? <Text style={styles.relationshipEmpty}>None</Text> : null}
+        {uniqueTargets.map((target) => (
+          <RelationshipChip
+            key={target}
+            note={resolveMobileRelationshipNote({ notes, target })}
+            onRemove={hasMobileRelationshipRef({ target, values: writableTargets }) && onChangeTargets
+              ? () => onChangeTargets(filterMobileRelationshipRef({ target, values: writableTargets }))
+              : undefined}
+            target={target}
+            onOpenNote={onOpenNote}
+          />
+        ))}
+      </View>
+      <MobileRelationshipNotePicker
+        notes={notes}
+        title={`Add ${label}`}
+        visible={isAdding}
+        onClose={() => setIsAdding(false)}
+        onSelectNote={addTarget}
+      />
+    </View>
+  )
+}
+
+function RelationshipHeader({
+  canAdd,
+  canDelete,
+  label,
+  onAdd,
+  onDelete,
+}: {
+  canAdd: boolean
+  canDelete: boolean
+  label: string
+  onAdd: () => void
+  onDelete?: () => void
+}) {
+  return (
+    <View style={styles.relationshipHeader}>
+      <Text style={styles.propertyGroupTitle}>{label}</Text>
+      <View style={styles.relationshipHeaderActions}>
+        {canDelete ? (
+          <Pressable onPress={onDelete} style={({ pressed }) => [styles.relationshipAddButton, pressed ? styles.pressed : null]}>
+            <X color={colors.textSoft} size={14} />
+          </Pressable>
+        ) : null}
+        {canAdd ? (
+          <Pressable onPress={onAdd} style={({ pressed }) => [styles.relationshipAddButton, pressed ? styles.pressed : null]}>
+            <Plus color={colors.textSoft} size={14} />
+          </Pressable>
+        ) : null}
+      </View>
+    </View>
+  )
+}
+
+function AddRelationshipGroup({
+  note,
+  notes,
+  onAdd,
+}: {
+  note: MobileNote
+  notes: MobileNote[]
+  onAdd: (key: string, target: string) => void
+}) {
+  const [name, setName] = useState('')
+  const [pendingKey, setPendingKey] = useState<string | null>(null)
+  const openTargetPicker = () => {
+    const key = relationshipKeyFromLabel(name)
+    if (key && !note.relationships[key]) {
+      setPendingKey(key)
+    }
+  }
+
+  return (
+    <View style={styles.relationshipGroup}>
+      <TextInput
+        autoCapitalize="none"
+        autoCorrect={false}
+        onChangeText={setName}
+        onSubmitEditing={openTargetPicker}
+        placeholder="+ Add relationship"
+        placeholderTextColor={colors.mutedText}
+        style={styles.relationshipInput}
+        value={name}
+      />
+      <MobileRelationshipNotePicker
+        notes={notes}
+        title={`Add ${formatRelationshipLabel(pendingKey ?? 'relationship')}`}
+        visible={Boolean(pendingKey)}
+        onClose={() => setPendingKey(null)}
+        onSelectNote={(targetNote) => {
+          if (!pendingKey) return
+
+          onAdd(pendingKey, mobileWikilinkForNote(targetNote))
+          setName('')
+          setPendingKey(null)
+        }}
+      />
+    </View>
+  )
+}
+
+function CustomProperties({
+  note,
+  onChangeProperties,
+}: {
+  note: MobileNote
+  onChangeProperties?: (patch: MobileNotePropertyPatch) => void
+}) {
+  const entries = Object.entries(note.customProperties)
+
+  return (
+    <PropertySection title="Custom properties">
+      {entries.length === 0 ? <Text style={styles.relationshipEmpty}>None</Text> : null}
+      {entries.map(([key, value]) => (
+        <PropertyRow
+          key={key}
+          label={formatRelationshipLabel(key)}
+          value={value}
+          onDelete={() => onChangeProperties?.({
+            customProperties: removeCustomPropertyKey({ customProperties: note.customProperties, key }),
+            removedCustomPropertyKeys: [key],
+          })}
+        />
+      ))}
+    </PropertySection>
+  )
+}
+
+function BacklinkGroup({
+  backlinks,
+  onOpenNote,
+}: {
+  backlinks: MobileNote['backlinks']
+  onOpenNote?: (noteId: string) => void
+}) {
+  if (backlinks.length === 0) {
+    return null
+  }
+
+  return (
+    <View style={styles.relationshipGroup}>
+      <Text style={styles.propertyGroupTitle}>Linked from</Text>
+      <View style={styles.relationshipChipRow}>
+        {backlinks.map((backlink) => (
+          <RelationshipChip
+            key={backlink.id}
+            note={backlink}
+            target={backlink.title}
+            onOpenNote={onOpenNote}
+          />
+        ))}
+      </View>
+    </View>
+  )
+}
+
+function RelationshipChip({
+  note,
+  onOpenNote,
+  onRemove,
+  target,
+}: {
+  note?: { id: string; title: string; type?: string }
+  onOpenNote?: (noteId: string) => void
+  onRemove?: () => void
+  target: string
+}) {
+  const appearance = mobileRelationshipAppearance(note?.type)
+  const chip = <Text style={styles.relationshipChipText}>{note?.title ?? mobileRelationshipDisplayLabel(target)}</Text>
+
+  const content = (
+    <>
+      {chip}
+      {onRemove ? (
+        <Pressable onPress={onRemove} style={styles.relationshipRemoveButton}>
+          <X color={appearance.color} size={12} />
+        </Pressable>
+      ) : null}
+    </>
+  )
+
+  return note && onOpenNote ? (
+    <Pressable
+      onPress={() => onOpenNote(note.id)}
+      style={({ pressed }) => [
+        styles.relationshipChip,
+        { backgroundColor: appearance.backgroundColor, borderColor: appearance.borderColor },
+        pressed ? styles.pressed : null,
+      ]}
+    >
+      {content}
+    </Pressable>
+  ) : (
+    <View style={[styles.relationshipChip, { backgroundColor: appearance.backgroundColor, borderColor: appearance.borderColor }]}>{content}</View>
+  )
+}
+
+function formatRelationshipLabel(key: string) {
+  return key.replace(/_/g, ' ').replace(/\b\w/g, (letter) => letter.toUpperCase())
+}
+
+function relationshipKeyFromLabel(label: string) {
+  return label.trim().toLowerCase().replace(/[^a-z0-9]+/g, '_').replace(/^_+|_+$/g, '')
+}
+
+function PanelToolbar({ onClose }: { onClose?: () => void }) {
+  return (
+    <View style={styles.toolbar}>
+      <Text style={styles.propertiesTitle}>Properties</Text>
+      <View style={styles.toolbarSpacer} />
+      {onClose ? (
+        <Pressable onPress={onClose} style={({ pressed }) => [styles.iconButton, pressed ? styles.pressed : null]}>
+          <CaretLeft size={23} color={colors.textSoft} />
+        </Pressable>
+      ) : null}
+    </View>
+  )
+}
+
+function PropertyRow({
+  label,
+  onDelete,
+  value,
+}: {
+  label: string
+  onDelete?: () => void
+  value: string
+}) {
+  return (
+    <View style={styles.propertyRow}>
+      <Text style={styles.propertyLabel}>{label}</Text>
+      <Text style={styles.propertyValue}>{value}</Text>
+      {onDelete ? (
+        <Pressable onPress={onDelete} style={styles.relationshipRemoveButton}>
+          <X color={colors.textSoft} size={14} />
+        </Pressable>
+      ) : null}
+    </View>
+  )
+}
+
+function removeRelationshipKey({
+  key,
+  relationships,
+}: {
+  key: string
+  relationships: Record<string, string[]>
+}) {
+  return Object.fromEntries(Object.entries(relationships).filter(([relationshipKey]) => relationshipKey !== key))
+}
+
+function removeCustomPropertyKey({
+  customProperties,
+  key,
+}: {
+  customProperties: Record<string, string>
+  key: string
+}) {
+  return Object.fromEntries(Object.entries(customProperties).filter(([propertyKey]) => propertyKey !== key))
+}

apps/mobile/src/MobileRawEditor.tsx

@@ -0,0 +1,62 @@
+import { useMemo, useState } from 'react'
+import { Pressable, Text, TextInput, View } from 'react-native'
+import type { MobileNote } from './mobileNoteProjection'
+import { activeMobileWikilinkQuery, insertMobileWikilink, mobileNoteSuggestions } from './mobileWikilinkAutocomplete'
+import { styles } from './styles'
+
+export function MobileRawEditor({
+  notes,
+  note,
+  onRawMarkdownChange,
+}: {
+  notes: MobileNote[]
+  note: MobileNote
+  onRawMarkdownChange: (markdown: string) => void
+}) {
+  const [draft, setDraft] = useState(note.content)
+  const [cursor, setCursor] = useState(note.content.length)
+  const activeQuery = useMemo(() => activeMobileWikilinkQuery({ cursor, markdown: draft }), [cursor, draft])
+  const suggestions = useMemo(
+    () => activeQuery ? mobileNoteSuggestions({ excludeNoteId: note.id, notes, query: activeQuery.query }) : [],
+    [activeQuery, note.id, notes],
+  )
+
+  return (
+    <View style={styles.rawEditorContent}>
+      <TextInput
+        autoCapitalize="none"
+        autoCorrect={false}
+        multiline
+        onChangeText={(markdown) => {
+          setDraft(markdown)
+          onRawMarkdownChange(markdown)
+        }}
+        onSelectionChange={(event) => setCursor(event.nativeEvent.selection.start)}
+        scrollEnabled
+        spellCheck={false}
+        style={styles.rawEditorInput}
+        textAlignVertical="top"
+        value={draft}
+      />
+      {suggestions.length > 0 && activeQuery ? (
+        <View style={styles.rawEditorSuggestionMenu}>
+          {suggestions.map((suggestion) => (
+            <Pressable
+              key={suggestion.id}
+              onPress={() => {
+                const nextDraft = insertMobileWikilink({ markdown: draft, note: suggestion, query: activeQuery })
+                setDraft(nextDraft)
+                setCursor(activeQuery.start + suggestion.id.length + suggestion.title.length + 5)
+                onRawMarkdownChange(nextDraft)
+              }}
+              style={({ pressed }) => [styles.rawEditorSuggestion, pressed ? styles.pressed : null]}
+            >
+              <Text style={styles.rawEditorSuggestionTitle}>{suggestion.title}</Text>
+              <Text style={styles.rawEditorSuggestionMeta}>{suggestion.id}</Text>
+            </Pressable>
+          ))}
+        </View>
+      ) : null}
+    </View>
+  )
+}

apps/mobile/src/MobileRelationshipNotePicker.tsx

@@ -0,0 +1,73 @@
+import { X } from 'phosphor-react-native'
+import { useMemo, useState } from 'react'
+import { Modal, Pressable, Text, TextInput, View, type GestureResponderEvent } from 'react-native'
+import type { MobileNote } from './mobileNoteProjection'
+import { mobileNoteSuggestions } from './mobileWikilinkAutocomplete'
+import { styles } from './styles'
+import { colors } from './theme'
+
+export function MobileRelationshipNotePicker({
+  notes,
+  onClose,
+  onSelectNote,
+  title,
+  visible,
+}: {
+  notes: MobileNote[]
+  onClose: () => void
+  onSelectNote: (note: MobileNote) => void
+  title: string
+  visible: boolean
+}) {
+  const [query, setQuery] = useState('')
+  const suggestions = useMemo(
+    () => query.trim() ? mobileNoteSuggestions({ notes, query }) : [],
+    [notes, query],
+  )
+
+  return (
+    <Modal animationType="fade" transparent visible={visible} onRequestClose={onClose}>
+      <Pressable style={styles.relationshipPickerOverlay} onPress={onClose}>
+        <Pressable style={styles.relationshipPickerPanel} onPress={stopPressPropagation}>
+          <View style={styles.relationshipPickerHeader}>
+            <Text style={styles.relationshipPickerTitle}>{title}</Text>
+            <Pressable onPress={onClose} style={styles.relationshipPickerClose}>
+              <X color={colors.textSoft} size={18} />
+            </Pressable>
+          </View>
+          <TextInput
+            autoCapitalize="none"
+            autoCorrect={false}
+            autoFocus
+            onChangeText={setQuery}
+            placeholder="Search notes"
+            placeholderTextColor={colors.mutedText}
+            style={styles.relationshipPickerInput}
+            value={query}
+          />
+          <View style={styles.relationshipPickerResults}>
+            {query.trim() ? null : <Text style={styles.relationshipPickerEmpty}>Type to find a note.</Text>}
+            {query.trim() && suggestions.length === 0 ? <Text style={styles.relationshipPickerEmpty}>No matching notes.</Text> : null}
+            {suggestions.map((suggestion) => (
+              <Pressable
+                key={suggestion.id}
+                onPress={() => {
+                  onSelectNote(suggestion)
+                  setQuery('')
+                }}
+                style={({ pressed }) => [styles.relationshipPickerResult, pressed ? styles.pressed : null]}
+              >
+                <Text numberOfLines={1} style={styles.relationshipPickerResultTitle}>{suggestion.title}</Text>
+                <Text numberOfLines={1} style={styles.relationshipPickerResultMeta}>{suggestion.type}</Text>
+              </Pressable>
+            ))}
+          </View>
+        </Pressable>
+      </Pressable>
+    </Modal>
+  )
+}
+
+function stopPressPropagation(event: GestureResponderEvent) {
+  event.stopPropagation()
+}

apps/mobile/src/MobileVaultManagementCard.tsx

@@ -0,0 +1,45 @@
+import { Pressable, Text, View } from 'react-native'
+import { GitBranch, HardDrive, SlidersHorizontal } from 'phosphor-react-native'
+import { styles } from './styles'
+import { colors } from './theme'
+import type { MobileVaultMetadata } from './mobileVaultMetadata'
+import { createMobileVaultManagementSummary } from './mobileVaultManagementSummary'
+
+export function MobileVaultManagementCard({
+  onOpenRemoteSetup,
+  vault,
+}: {
+  onOpenRemoteSetup: () => void
+  vault: MobileVaultMetadata
+}) {
+  const summary = createMobileVaultManagementSummary(vault)
+
+  return (
+    <View style={styles.vaultManagementCard}>
+      <View style={styles.vaultManagementHeader}>
+        <View style={styles.vaultManagementIcon}>
+          <HardDrive size={18} color={colors.primary} />
+        </View>
+        <View style={styles.vaultManagementTitleGroup}>
+          <Text numberOfLines={1} style={styles.vaultManagementTitle}>{summary.name}</Text>
+          <Text style={styles.vaultManagementDetail}>{summary.storageLabel}</Text>
+        </View>
+      </View>
+      <View style={styles.vaultManagementRemoteRow}>
+        <GitBranch size={17} color={colors.iconMuted} />
+        <View style={styles.vaultManagementRemoteText}>
+          <Text style={styles.vaultManagementRemoteLabel}>{summary.remoteLabel}</Text>
+          <Text numberOfLines={1} style={styles.vaultManagementDetail}>{summary.remoteDetail}</Text>
+        </View>
+      </View>
+      <Pressable
+        accessibilityLabel="Configure Git remote"
+        onPress={onOpenRemoteSetup}
+        style={({ pressed }) => [styles.vaultManagementAction, pressed ? styles.pressed : null]}
+      >
+        <SlidersHorizontal size={17} color={colors.primary} />
+        <Text style={styles.vaultManagementActionText}>{summary.actionLabel}</Text>
+      </Pressable>
+    </View>
+  )
+}

apps/mobile/src/MobileVaultRemotePrompt.tsx

@@ -0,0 +1,73 @@
+import { Pressable, Text, TextInput, View } from 'react-native'
+import { styles } from './styles'
+
+export function MobileVaultRemotePrompt({
+  failed,
+  hasGitHubOAuthClientId,
+  isSaving,
+  onCancel,
+  onChangeRemoteUrl,
+  onSubmit,
+  remoteUrl,
+}: {
+  failed: boolean
+  hasGitHubOAuthClientId: boolean
+  isSaving: boolean
+  onCancel: () => void
+  onChangeRemoteUrl: (remoteUrl: string) => void
+  onSubmit: () => void
+  remoteUrl: string
+}) {
+  return (
+    <View style={styles.remotePrompt}>
+      <Text style={styles.remotePromptTitle}>Git remote</Text>
+      <TextInput
+        accessibilityLabel="Git remote URL"
+        autoCapitalize="none"
+        autoCorrect={false}
+        editable={!isSaving}
+        onChangeText={onChangeRemoteUrl}
+        onSubmitEditing={onSubmit}
+        placeholder="https://github.com/owner/repo.git"
+        returnKeyType="done"
+        style={styles.remotePromptInput}
+        value={remoteUrl}
+      />
+      {!hasGitHubOAuthClientId ? (
+        <Text style={styles.remotePromptError}>GitHub login needs EXPO_PUBLIC_GITHUB_OAUTH_CLIENT_ID</Text>
+      ) : null}
+      {failed ? <Text style={styles.remotePromptError}>Enter a valid Git remote URL</Text> : null}
+      <View style={styles.remotePromptActions}>
+        <PromptButton label="Cancel" onPress={onCancel} />
+        <PromptButton label={isSaving ? 'Saving' : 'Save'} onPress={onSubmit} disabled={isSaving} primary />
+      </View>
+    </View>
+  )
+}
+
+function PromptButton({
+  disabled,
+  label,
+  onPress,
+  primary,
+}: {
+  disabled?: boolean
+  label: string
+  onPress: () => void
+  primary?: boolean
+}) {
+  return (
+    <Pressable
+      disabled={disabled}
+      onPress={onPress}
+      style={({ pressed }) => [
+        styles.remotePromptAction,
+        primary ? styles.remotePromptActionPrimary : null,
+        disabled ? styles.remotePromptActionDisabled : null,
+        pressed ? styles.pressed : null,
+      ]}
+    >
+      <Text style={[styles.remotePromptActionText, primary ? styles.remotePromptActionTextPrimary : null]}>{label}</Text>
+    </Pressable>
+  )
+}

apps/mobile/src/NamedIcon.tsx

@@ -0,0 +1,36 @@
+import {
+  Archive,
+  Books,
+  Drop,
+  FileText,
+  Flag,
+  GitBranch,
+  PenNib,
+  Robot,
+  Star,
+  Sun,
+  Tray,
+  Wrench,
+} from 'phosphor-react-native'
+
+export type IconName = 'archive' | 'books' | 'drop' | 'file-text' | 'flag' | 'git-branch' | 'pen-nib' | 'robot' | 'star' | 'sun' | 'tray' | 'wrench'
+
+const iconByName = {
+  archive: Archive,
+  books: Books,
+  drop: Drop,
+  'file-text': FileText,
+  flag: Flag,
+  'git-branch': GitBranch,
+  'pen-nib': PenNib,
+  robot: Robot,
+  star: Star,
+  sun: Sun,
+  tray: Tray,
+  wrench: Wrench,
+} as const
+
+export function NamedIcon({ color, name, size }: { color: string; name: IconName; size: number }) {
+  const Icon = iconByName[name]
+  return <Icon color={color} size={size} weight="regular" />
+}

apps/mobile/src/SwipeSurface.tsx

@@ -0,0 +1,37 @@
+import { View } from 'react-native'
+import {
+  PanGestureHandler,
+  State,
+  type PanGestureHandlerStateChangeEvent,
+} from 'react-native-gesture-handler'
+import { compactSwipeEvent, detectHorizontalSwipe } from './compactGestures'
+import type { CompactNavigationEvent, CompactPanel } from './compactNavigation'
+import { styles } from './styles'
+
+export function SwipeSurface({
+  children,
+  panel,
+  onNavigate,
+}: {
+  children: React.ReactNode
+  panel: CompactPanel
+  onNavigate: (event: CompactNavigationEvent) => void
+}) {
+  const handleStateChange = (event: PanGestureHandlerStateChangeEvent) => {
+    if (event.nativeEvent.state !== State.END) {
+      return
+    }
+
+    const direction = detectHorizontalSwipe(event.nativeEvent)
+    const navigationEvent = direction ? compactSwipeEvent(panel, direction) : null
+    if (navigationEvent) {
+      onNavigate(navigationEvent)
+    }
+  }
+
+  return (
+    <PanGestureHandler activeOffsetX={[-18, 18]} failOffsetY={[-24, 24]} onHandlerStateChange={handleStateChange}>
+      <View style={styles.swipeSurface}>{children}</View>
+    </PanGestureHandler>
+  )
+}

apps/mobile/src/compactGestures.test.ts

@@ -0,0 +1,25 @@
+import { describe, expect, it } from 'vitest'
+import { compactSwipeEvent, detectHorizontalSwipe } from './compactGestures'
+
+describe('compact mobile gestures', () => {
+  it('ignores short slow horizontal drags', () => {
+    expect(detectHorizontalSwipe({ translationX: 24, velocityX: 90 })).toBeNull()
+  })
+
+  it('detects committed left and right swipes', () => {
+    expect(detectHorizontalSwipe({ translationX: -72, velocityX: -120 })).toBe('left')
+    expect(detectHorizontalSwipe({ translationX: 20, velocityX: 520 })).toBe('right')
+  })
+
+  it('maps the requested Bear-style compact panel swipes', () => {
+    expect(compactSwipeEvent('list', 'left')).toEqual({ type: 'openSidebar' })
+    expect(compactSwipeEvent('sidebar', 'right')).toEqual({ type: 'closeSidebar' })
+    expect(compactSwipeEvent('note', 'right')).toEqual({ type: 'openProperties' })
+    expect(compactSwipeEvent('properties', 'left')).toEqual({ type: 'closeProperties' })
+  })
+
+  it('does not invent transitions for unsupported panel directions', () => {
+    expect(compactSwipeEvent('list', 'right')).toBeNull()
+    expect(compactSwipeEvent('note', 'left')).toBeNull()
+  })
+})

apps/mobile/src/compactGestures.ts

@@ -0,0 +1,36 @@
+import type { CompactNavigationEvent, CompactPanel } from './compactNavigation'
+
+export type SwipeDirection = 'left' | 'right'
+
+export type SwipeSample = {
+  translationX: number
+  velocityX: number
+}
+
+const MIN_TRANSLATION = 56
+const MIN_VELOCITY = 420
+const compactGestureEvents: Partial<Record<`${CompactPanel}:${SwipeDirection}`, CompactNavigationEvent>> = {
+  'list:left': { type: 'openSidebar' },
+  'sidebar:right': { type: 'closeSidebar' },
+  'note:right': { type: 'openProperties' },
+  'properties:left': { type: 'closeProperties' },
+}
+
+export function detectHorizontalSwipe(sample: SwipeSample): SwipeDirection | null {
+  if (!isCommittedSwipe(sample)) {
+    return null
+  }
+
+  return sample.translationX < 0 ? 'left' : 'right'
+}
+
+export function compactSwipeEvent(
+  panel: CompactPanel,
+  direction: SwipeDirection,
+): CompactNavigationEvent | null {
+  return compactGestureEvents[`${panel}:${direction}`] ?? null
+}
+
+function isCommittedSwipe(sample: SwipeSample) {
+  return Math.abs(sample.translationX) >= MIN_TRANSLATION || Math.abs(sample.velocityX) >= MIN_VELOCITY
+}

apps/mobile/src/compactNavigation.test.ts

@@ -0,0 +1,60 @@
+import { describe, expect, it } from 'vitest'
+import {
+  createCompactNavigationState,
+  transitionCompactNavigation,
+  type CompactNavigationState,
+} from './compactNavigation'
+
+describe('compact mobile navigation', () => {
+  it('starts on the note list with the first note selected', () => {
+    expect(createCompactNavigationState('workflow')).toEqual({
+      panel: 'list',
+      selectedNoteId: 'workflow',
+    })
+  })
+
+  it('opens a selected note from the list', () => {
+    const next = transitionCompactNavigation(createCompactNavigationState('workflow'), {
+      type: 'selectNote',
+      noteId: 'release',
+    })
+
+    expect(next).toEqual({
+      panel: 'note',
+      selectedNoteId: 'release',
+    })
+  })
+
+  it('returns from sidebar and note surfaces to the list', () => {
+    expect(panelAfter({ type: 'openSidebar' })).toBe('sidebar')
+    expect(panelAfter({ type: 'closeSidebar' }, 'sidebar')).toBe('list')
+    expect(panelAfter({ type: 'backToList' }, 'note')).toBe('list')
+  })
+
+  it('opens and closes note properties without changing the selected note', () => {
+    const noteState: CompactNavigationState = {
+      panel: 'note',
+      selectedNoteId: 'workflow',
+    }
+
+    const propertiesState = transitionCompactNavigation(noteState, { type: 'openProperties' })
+    const closedState = transitionCompactNavigation(propertiesState, { type: 'closeProperties' })
+
+    expect(propertiesState).toEqual({
+      panel: 'properties',
+      selectedNoteId: 'workflow',
+    })
+    expect(closedState).toEqual({
+      panel: 'note',
+      selectedNoteId: 'workflow',
+    })
+  })
+})
+
+function panelAfter(
+  event: Parameters<typeof transitionCompactNavigation>[1],
+  panel: CompactNavigationState['panel'] = 'list',
+) {
+  const state = transitionCompactNavigation({ panel, selectedNoteId: 'workflow' }, event)
+  return state.panel
+}

apps/mobile/src/compactNavigation.ts

@@ -0,0 +1,55 @@
+export type CompactPanel = 'sidebar' | 'list' | 'note' | 'properties'
+
+export type CompactNavigationState = {
+  panel: CompactPanel
+  selectedNoteId: string
+}
+
+export type CompactNavigationEvent =
+  | { type: 'backToList' }
+  | { type: 'closeProperties' }
+  | { type: 'closeSidebar' }
+  | { type: 'openProperties' }
+  | { type: 'openSidebar' }
+  | { type: 'selectNote'; noteId: string }
+
+export function createCompactNavigationState(initialNoteId: string): CompactNavigationState {
+  return {
+    panel: 'list',
+    selectedNoteId: initialNoteId,
+  }
+}
+
+export function transitionCompactNavigation(
+  state: CompactNavigationState,
+  event: CompactNavigationEvent,
+): CompactNavigationState {
+  if (event.type === 'selectNote') {
+    return { panel: 'note', selectedNoteId: event.noteId }
+  }
+
+  return {
+    ...state,
+    panel: nextPanel(state.panel, event),
+  }
+}
+
+function nextPanel(currentPanel: CompactPanel, event: Exclude<CompactNavigationEvent, { type: 'selectNote' }>) {
+  if (event.type === 'openSidebar') {
+    return 'sidebar'
+  }
+
+  if (event.type === 'closeSidebar' || event.type === 'backToList') {
+    return 'list'
+  }
+
+  if (event.type === 'openProperties') {
+    return 'properties'
+  }
+
+  if (event.type === 'closeProperties') {
+    return 'note'
+  }
+
+  return currentPanel
+}

apps/mobile/src/demoData.test.ts

@@ -0,0 +1,20 @@
+import { describe, expect, it } from 'vitest'
+import { notes } from './demoData'
+import { createMobileSidebarSections } from './mobileSidebarNavigation'
+
+describe('mobile demo data', () => {
+  it('derives note titles and snippets through shared markdown utilities', () => {
+    expect(notes[0].title).toBe('Workflow Orchestration Essay')
+    expect(notes[0].snippet).toContain('The current narrative / temptation')
+    expect(notes[0].words).toBeGreaterThan(20)
+  })
+
+  it('keeps the initial sidebar focused on inbox', () => {
+    const sidebarSections = createMobileSidebarSections(notes)
+
+    expect(sidebarSections[0].items[0]).toMatchObject({
+      label: 'Inbox',
+      selection: { kind: 'library', id: 'inbox' },
+    })
+  })
+})

apps/mobile/src/demoData.ts

@@ -0,0 +1,242 @@
+import { projectMobileNotes, type MobileNote, type MobileNoteSource } from './mobileNoteProjection'
+import { createFixtureMobileVaultRepository } from './mobileVaultRepository'
+
+export type { MobileNote } from './mobileNoteProjection'
+
+export const demoNoteSources: MobileNoteSource[] = [
+  {
+    archived: false,
+    belongsTo: ['Tolaria MVP'],
+    customProperties: { review_stage: 'Draft outline' },
+    favorite: true,
+    favoriteIndex: 0,
+    has: ['workflow-orchestration-checklist'],
+    id: 'workflow',
+    type: 'Essay',
+    icon: 'pen-nib',
+    date: 'May 13, 2026',
+    modified: '6h ago',
+    filename: 'workflow.md',
+    relatedTo: ['release', 'mobile-roadmap'],
+    relationships: { people: ['Malte Ubl'], topics: ['workflow orchestration'] },
+    tags: ['Design Inspiration', 'Tolaria MVP'],
+    content: [
+      '---',
+      'title: Workflow Orchestration Essay',
+      '_favorite: true',
+      '_favorite_index: 0',
+      'type: Essay',
+      'status: Draft',
+      'tags: [Design Inspiration, Tolaria MVP]',
+      'belongs_to: [Tolaria MVP]',
+      'related_to: [release, mobile-roadmap]',
+      'has: [workflow-orchestration-checklist]',
+      'people: [Malte Ubl]',
+      'review_stage: Draft outline',
+      'topics: [workflow orchestration]',
+      '---',
+      '',
+      '# Workflow Orchestration Essay',
+      '',
+      '- The current narrative / temptation: everything routed through an LLM.',
+      '- A real example (Tolaria + OpenClaw): OpenClaw does a lot for me in product development.',
+      '- The cost of AI everywhere: expensive, slow, and unpredictable.',
+      '- Where orchestration wins: observability, human-in-the-loop approvals, reliability.',
+      '',
+      'This connects to [[mobile-roadmap|the mobile roadmap]] and the [[workflow-orchestration-checklist]].',
+    ].join('\n'),
+  },
+  {
+    archived: false,
+    belongsTo: ['Tolaria MVP'],
+    customProperties: { platform: 'iPad first' },
+    favorite: true,
+    favoriteIndex: 1,
+    has: ['workflow'],
+    id: 'mobile-roadmap',
+    type: 'Project',
+    icon: 'wrench',
+    date: 'May 5, 2026',
+    modified: '1h ago',
+    filename: 'mobile-roadmap.md',
+    relatedTo: ['release'],
+    relationships: { depends_on: ['workflow-orchestration-checklist'] },
+    tags: ['Tolaria MVP', 'mobile'],
+    content: [
+      '---',
+      'title: Mobile Roadmap',
+      '_favorite: true',
+      '_favorite_index: 1',
+      'type: Project',
+      'status: Active',
+      'tags: [Tolaria MVP, mobile]',
+      'belongs_to: [Tolaria MVP]',
+      'related_to: [release]',
+      'has: [workflow]',
+      'depends_on: [workflow-orchestration-checklist]',
+      'platform: iPad first',
+      '---',
+      '',
+      '# Mobile Roadmap',
+      '',
+      'Local-first workflow parity comes before cloud sync.',
+      '',
+      '- Sidebar navigation by type',
+      '- Raw editor for direct markdown edits',
+      '- Wikilinks like [[workflow]] and [[release]]',
+    ].join('\n'),
+  },
+  {
+    archived: false,
+    belongsTo: ['workflow'],
+    customProperties: {},
+    has: [],
+    id: 'workflow-orchestration-checklist',
+    type: 'Note',
+    icon: 'file-text',
+    date: 'May 5, 2026',
+    modified: '2h ago',
+    filename: 'workflow-orchestration-checklist.md',
+    relatedTo: ['workflow'],
+    relationships: {},
+    tags: ['mobile'],
+    content: [
+      '---',
+      'title: Workflow Orchestration Checklist',
+      'type: Note',
+      'status: Draft',
+      'tags: [mobile]',
+      'belongs_to: [workflow]',
+      'related_to: [workflow]',
+      '---',
+      '',
+      '# Workflow Orchestration Checklist',
+      '',
+      '- Validate breadcrumbs',
+      '- Validate [[workflow]] wikilinks',
+      '- Validate relationships panel',
+    ].join('\n'),
+  },
+  {
+    archived: false,
+    belongsTo: ['Tolaria MVP'],
+    customProperties: {},
+    has: [],
+    id: 'release',
+    type: 'Release Note',
+    icon: 'flag',
+    date: 'May 2, 2026',
+    modified: '12h ago',
+    filename: 'release.md',
+    relatedTo: ['workflow', 'mobile-roadmap'],
+    relationships: {},
+    tags: ['Release', 'Stable'],
+    content: [
+      '---',
+      'title: v2026-05-02',
+      'type: Release Note',
+      'status: Done',
+      'tags: [Release, Stable]',
+      'belongs_to: [Tolaria MVP]',
+      'related_to: [workflow, mobile-roadmap]',
+      '---',
+      '',
+      '# v2026-05-02',
+      '',
+      'Another Tolaria release in the bag. This one is focused on performance, bug fixes, and lower-friction note workflows.',
+      '',
+      'Follow-up work lives in [[mobile-roadmap]].',
+    ].join('\n'),
+  },
+  {
+    archived: false,
+    belongsTo: ['Tolaria MVP'],
+    customProperties: {},
+    has: ['resources'],
+    id: 'migration',
+    type: 'Project',
+    icon: 'git-branch',
+    date: 'Apr 28, 2026',
+    modified: '1d ago',
+    filename: 'migration.md',
+    relatedTo: ['mobile-roadmap'],
+    relationships: {},
+    tags: ['Project', 'Resources'],
+    content: [
+      '---',
+      'title: Tolaria <> Obsidian migration proposal',
+      'type: Project',
+      'status: Active',
+      'tags: [Project, Resources]',
+      'belongs_to: [Tolaria MVP]',
+      'related_to: [mobile-roadmap]',
+      'has: [resources]',
+      '---',
+      '',
+      '# Tolaria <> Obsidian migration proposal',
+      '',
+      'Obsidian vaults are already close to Tolaria ideal substrate: local Markdown, portable attachments, and git-backed history.',
+    ].join('\n'),
+  },
+  {
+    archived: false,
+    belongsTo: ['migration'],
+    customProperties: {},
+    has: [],
+    id: 'resources',
+    type: 'Resource',
+    icon: 'books',
+    date: 'Apr 20, 2026',
+    modified: '3d ago',
+    filename: 'resources.md',
+    relatedTo: ['migration', 'mobile-roadmap'],
+    relationships: {},
+    tags: ['Resources', 'mobile'],
+    content: [
+      '---',
+      'title: Mobile Resources',
+      'type: Resource',
+      'status: Active',
+      'tags: [Resources, mobile]',
+      'belongs_to: [migration]',
+      'related_to: [migration, mobile-roadmap]',
+      '---',
+      '',
+      '# Mobile Resources',
+      '',
+      'References for [[mobile-roadmap]] and local vault workflow QA.',
+    ].join('\n'),
+  },
+  {
+    archived: true,
+    belongsTo: [],
+    customProperties: {},
+    has: [],
+    id: 'old-mobile-spike',
+    type: 'Note',
+    icon: 'archive',
+    date: 'Mar 30, 2026',
+    modified: 'last month',
+    filename: 'old-mobile-spike.md',
+    relatedTo: ['mobile-roadmap'],
+    relationships: {},
+    tags: ['mobile'],
+    content: [
+      '---',
+      'title: Old Mobile Spike',
+      'type: Note',
+      'archived: true',
+      'tags: [mobile]',
+      'related_to: [mobile-roadmap]',
+      '---',
+      '',
+      '# Old Mobile Spike',
+      '',
+      'Archived prototype notes kept around for comparison with [[mobile-roadmap]].',
+    ].join('\n'),
+  },
+]
+
+export const notes: MobileNote[] = projectMobileNotes(demoNoteSources)
+
+export const demoVaultRepository = createFixtureMobileVaultRepository(demoNoteSources)

apps/mobile/src/mobileAiClient.test.ts

@@ -0,0 +1,58 @@
+import { afterEach, describe, expect, it, vi } from 'vitest'
+import { sendMobileAiRequest } from './mobileAiClient'
+import type { MobileNote } from './mobileNoteProjection'
+
+describe('mobile AI client', () => {
+  afterEach(() => {
+    vi.restoreAllMocks()
+  })
+
+  it('sends an OpenAI-compatible chat completion request with note context', async () => {
+    const fetchMock = vi.spyOn(globalThis, 'fetch').mockResolvedValue({
+      json: async () => ({ choices: [{ message: { content: 'Answer' } }] }),
+      ok: true,
+    } as Response)
+
+    await expect(sendMobileAiRequest({
+      apiKey: 'key',
+      note: note(),
+      prompt: 'Summarize',
+      provider: {
+        baseUrl: 'https://api.example.com/v1/',
+        id: 'provider',
+        kind: 'open_ai_compatible',
+        modelId: 'model',
+        name: 'Provider',
+      },
+    })).resolves.toBe('Answer')
+
+    expect(fetchMock).toHaveBeenCalledWith('https://api.example.com/v1/chat/completions', expect.objectContaining({
+      method: 'POST',
+    }))
+  })
+})
+
+function note(): MobileNote {
+  return {
+    archived: false,
+    backlinks: [],
+    belongsTo: [],
+    content: '# Workflow\n\nBody',
+    customProperties: {},
+    date: '',
+    favorite: false,
+    favoriteIndex: null,
+    has: [],
+    icon: 'file-text',
+    id: 'workflow',
+    modified: '',
+    outgoingLinks: [],
+    relatedTo: [],
+    relationships: {},
+    snippet: '',
+    tags: [],
+    title: 'Workflow',
+    type: 'Note',
+    words: 1,
+  }
+}

apps/mobile/src/mobileAiClient.ts

@@ -0,0 +1,45 @@
+import type { MobileNote } from './mobileNoteProjection'
+import type { MobileAiProvider } from './mobileAiSettings'
+
+export type MobileAiRequest = {
+  apiKey: string
+  note: MobileNote
+  prompt: string
+  provider: MobileAiProvider
+}
+
+export async function sendMobileAiRequest(request: MobileAiRequest) {
+  const response = await fetch(`${request.provider.baseUrl.replace(/\/$/, '')}/chat/completions`, {
+    body: JSON.stringify({
+      messages: [
+        {
+          content: [
+            'You are helping with a Tolaria markdown note.',
+            'Use concise answers and preserve [[wikilink]] syntax when referencing notes.',
+            `Active note: ${request.note.title}`,
+            request.note.content,
+          ].join('\n\n'),
+          role: 'system',
+        },
+        { content: request.prompt, role: 'user' },
+      ],
+      model: request.provider.modelId,
+    }),
+    headers: {
+      Authorization: `Bearer ${request.apiKey}`,
+      'Content-Type': 'application/json',
+    },
+    method: 'POST',
+  })
+
+  if (!response.ok) {
+    throw new Error(`AI request failed with ${response.status}`)
+  }
+
+  return extractAssistantMessage(await response.json())
+}
+
+function extractAssistantMessage(payload: unknown) {
+  const content = (payload as { choices?: Array<{ message?: { content?: unknown } }> }).choices?.[0]?.message?.content
+  return typeof content === 'string' ? content : ''
+}

apps/mobile/src/mobileAiProviderSecretStorage.test.ts

@@ -0,0 +1,25 @@
+import { describe, expect, it } from 'vitest'
+import { createMobileAiProviderSecretStorage } from './mobileAiProviderSecretStorage'
+
+describe('mobile AI provider secret storage', () => {
+  it('stores API keys in secure provider-scoped records', async () => {
+    const secrets = new Map<string, string>()
+    const storage = createMobileAiProviderSecretStorage({
+      deleteItemAsync: async (key) => {
+        secrets.delete(key)
+      },
+      getItemAsync: async (key) => secrets.get(key) ?? null,
+      setItemAsync: async (key, value) => {
+        secrets.set(key, value)
+      },
+    })
+
+    await storage.saveApiKey('Open-AI', 'secret')
+
+    expect(await storage.loadApiKey('open-ai')).toBe('secret')
+
+    await storage.removeApiKey('open-ai')
+
+    expect(await storage.loadApiKey('open-ai')).toBeNull()
+  })
+})

apps/mobile/src/mobileAiProviderSecretStorage.ts

@@ -0,0 +1,29 @@
+export type MobileAiProviderSecretStore = {
+  deleteItemAsync: (key: string) => Promise<void>
+  getItemAsync: (key: string) => Promise<string | null>
+  setItemAsync: (key: string, value: string) => Promise<void>
+}
+
+export type MobileAiProviderSecretStorage = {
+  loadApiKey: (providerId: string) => Promise<string | null>
+  removeApiKey: (providerId: string) => Promise<void>
+  saveApiKey: (providerId: string, apiKey: string) => Promise<void>
+}
+
+export function createMobileAiProviderSecretStorage(
+  secureStore: MobileAiProviderSecretStore,
+): MobileAiProviderSecretStorage {
+  return {
+    loadApiKey: async (providerId) => secureStore.getItemAsync(providerKey(providerId)),
+    removeApiKey: async (providerId) => {
+      await secureStore.deleteItemAsync(providerKey(providerId))
+    },
+    saveApiKey: async (providerId, apiKey) => {
+      await secureStore.setItemAsync(providerKey(providerId), apiKey)
+    },
+  }
+}
+
+function providerKey(providerId: string) {
+  return ['tolaria', 'ai-provider', providerId.trim().toLowerCase(), 'api-key'].join(':')
+}

apps/mobile/src/mobileAiSettings.test.ts

@@ -0,0 +1,66 @@
+import { describe, expect, it } from 'vitest'
+import {
+  buildMobileAiProvider,
+  normalizeMobileAiSettings,
+  removeMobileAiProvider,
+  selectedMobileAiProvider,
+  upsertMobileAiProvider,
+} from './mobileAiSettings'
+
+describe('mobile AI settings', () => {
+  it('builds API providers from presets without storing API keys', () => {
+    expect(buildMobileAiProvider({
+      draft: {
+        apiKey: 'secret',
+        kind: 'open_ai',
+        modelId: ' gpt-4.1-mini ',
+        name: '',
+      },
+      providerId: 'open-ai',
+    })).toEqual({
+      baseUrl: 'https://api.openai.com/v1',
+      id: 'open-ai',
+      kind: 'open_ai',
+      modelId: 'gpt-4.1-mini',
+      name: 'OpenAI',
+    })
+  })
+
+  it('normalizes persisted settings and selected provider', () => {
+    const settings = normalizeMobileAiSettings({
+      defaultProviderId: 'open-ai',
+      providers: [{
+        baseUrl: 'https://api.openai.com/v1',
+        id: 'open-ai',
+        kind: 'open_ai',
+        modelId: 'gpt-4.1-mini',
+        name: 'OpenAI',
+      }],
+    })
+
+    expect(selectedMobileAiProvider(settings)?.id).toBe('open-ai')
+  })
+
+  it('upserts and removes providers while maintaining the default target', () => {
+    const settings = upsertMobileAiProvider({
+      provider: provider('one'),
+      settings: { defaultProviderId: null, providers: [] },
+    })
+
+    expect(settings.defaultProviderId).toBe('one')
+    expect(removeMobileAiProvider({ providerId: 'one', settings })).toEqual({
+      defaultProviderId: null,
+      providers: [],
+    })
+  })
+})
+
+function provider(id: string) {
+  return {
+    baseUrl: 'https://api.openai.com/v1',
+    id,
+    kind: 'open_ai' as const,
+    modelId: 'gpt-4.1-mini',
+    name: 'OpenAI',
+  }
+}

apps/mobile/src/mobileAiSettings.ts

@@ -0,0 +1,166 @@
+export type MobileAiProviderKind = 'anthropic' | 'gemini' | 'open_ai' | 'open_ai_compatible' | 'open_router'
+
+export type MobileAiProvider = {
+  baseUrl: string
+  id: string
+  kind: MobileAiProviderKind
+  modelId: string
+  name: string
+}
+
+export type MobileAiSettings = {
+  defaultProviderId: string | null
+  providers: MobileAiProvider[]
+}
+
+export type MobileAiProviderDraft = {
+  apiKey: string
+  kind: MobileAiProviderKind
+  modelId: string
+  name: string
+}
+
+export const defaultMobileAiSettings: MobileAiSettings = {
+  defaultProviderId: null,
+  providers: [],
+}
+
+export const mobileAiProviderPresets: Record<MobileAiProviderKind, { baseUrl: string; name: string; placeholder: string }> = {
+  anthropic: {
+    baseUrl: 'https://api.anthropic.com/v1',
+    name: 'Anthropic',
+    placeholder: 'claude-3-5-sonnet-latest',
+  },
+  gemini: {
+    baseUrl: 'https://generativelanguage.googleapis.com/v1beta/openai',
+    name: 'Gemini',
+    placeholder: 'gemini-2.5-flash',
+  },
+  open_ai: {
+    baseUrl: 'https://api.openai.com/v1',
+    name: 'OpenAI',
+    placeholder: 'gpt-4.1-mini',
+  },
+  open_ai_compatible: {
+    baseUrl: 'https://api.example.com/v1',
+    name: 'Custom provider',
+    placeholder: 'model-id',
+  },
+  open_router: {
+    baseUrl: 'https://openrouter.ai/api/v1',
+    name: 'OpenRouter',
+    placeholder: 'openai/gpt-4.1-mini',
+  },
+}
+
+export function buildMobileAiProvider({
+  draft,
+  providerId,
+}: {
+  draft: MobileAiProviderDraft
+  providerId: string
+}): MobileAiProvider {
+  const preset = mobileAiProviderPresets[draft.kind]
+  return {
+    baseUrl: preset.baseUrl,
+    id: providerId,
+    kind: draft.kind,
+    modelId: draft.modelId.trim(),
+    name: draft.name.trim() || preset.name,
+  }
+}
+
+export function normalizeMobileAiSettings(value: unknown): MobileAiSettings {
+  if (!isSettingsRecord(value)) {
+    return defaultMobileAiSettings
+  }
+
+  const providers = value.providers.flatMap(normalizeMobileAiProvider)
+  return {
+    defaultProviderId: defaultProviderId({ providers, value: value.defaultProviderId }),
+    providers,
+  }
+}
+
+export function selectedMobileAiProvider(settings: MobileAiSettings) {
+  return settings.providers.find((provider) => provider.id === settings.defaultProviderId) ?? settings.providers[0] ?? null
+}
+
+export function upsertMobileAiProvider({
+  provider,
+  settings,
+}: {
+  provider: MobileAiProvider
+  settings: MobileAiSettings
+}): MobileAiSettings {
+  const providers = [provider, ...settings.providers.filter((item) => item.id !== provider.id)]
+  return { defaultProviderId: provider.id, providers }
+}
+
+export function removeMobileAiProvider({
+  providerId,
+  settings,
+}: {
+  providerId: string
+  settings: MobileAiSettings
+}): MobileAiSettings {
+  const providers = settings.providers.filter((provider) => provider.id !== providerId)
+  return {
+    defaultProviderId: settings.defaultProviderId === providerId ? providers[0]?.id ?? null : settings.defaultProviderId,
+    providers,
+  }
+}
+
+function defaultProviderId({
+  providers,
+  value,
+}: {
+  providers: MobileAiProvider[]
+  value: unknown
+}) {
+  return typeof value === 'string' && providers.some((provider) => provider.id === value)
+    ? value
+    : providers[0]?.id ?? null
+}
+
+function normalizeMobileAiProvider(value: unknown): MobileAiProvider[] {
+  if (!isProviderRecord(value)) {
+    return []
+  }
+
+  return [{
+    baseUrl: value.baseUrl.trim(),
+    id: value.id.trim(),
+    kind: value.kind,
+    modelId: value.modelId.trim(),
+    name: value.name.trim(),
+  }]
+}
+
+function isSettingsRecord(value: unknown): value is { defaultProviderId?: unknown; providers: unknown[] } {
+  return typeof value === 'object'
+    && value !== null
+    && Array.isArray((value as { providers?: unknown }).providers)
+}
+
+function isProviderRecord(value: unknown): value is MobileAiProvider {
+  return typeof value === 'object'
+    && value !== null
+    && hasText((value as MobileAiProvider).baseUrl)
+    && hasText((value as MobileAiProvider).id)
+    && isProviderKind((value as MobileAiProvider).kind)
+    && hasText((value as MobileAiProvider).modelId)
+    && hasText((value as MobileAiProvider).name)
+}
+
+function hasText(value: unknown): value is string {
+  return typeof value === 'string' && value.trim().length > 0
+}
+
+function isProviderKind(value: unknown): value is MobileAiProviderKind {
+  return value === 'anthropic'
+    || value === 'gemini'
+    || value === 'open_ai'
+    || value === 'open_ai_compatible'
+    || value === 'open_router'
+}

apps/mobile/src/mobileAiSettingsStorage.test.ts

@@ -0,0 +1,34 @@
+import { describe, expect, it } from 'vitest'
+import { createMobileAiSettingsStorage } from './mobileAiSettingsStorage'
+
+describe('mobile AI settings storage', () => {
+  it('loads default settings when no file exists and saves normalized settings', async () => {
+    const files = new Map<string, string>()
+    const storage = createMobileAiSettingsStorage({
+      documentDirectory: 'file:///docs',
+      getInfoAsync: async (uri) => ({ exists: files.has(uri) }),
+      makeDirectoryAsync: async (uri) => {
+        files.set(uri, '')
+      },
+      readAsStringAsync: async (uri) => files.get(uri) ?? '',
+      writeAsStringAsync: async (uri, content) => {
+        files.set(uri, content)
+      },
+    })
+
+    expect(await storage.load()).toEqual({ defaultProviderId: null, providers: [] })
+
+    await storage.save({
+      defaultProviderId: 'provider',
+      providers: [{
+        baseUrl: 'https://api.openai.com/v1',
+        id: 'provider',
+        kind: 'open_ai',
+        modelId: 'gpt-4.1-mini',
+        name: 'OpenAI',
+      }],
+    })
+
+    expect(await storage.load()).toMatchObject({ defaultProviderId: 'provider' })
+  })
+})

apps/mobile/src/mobileAiSettingsStorage.ts

@@ -0,0 +1,82 @@
+import { defaultMobileAiSettings, normalizeMobileAiSettings, type MobileAiSettings } from './mobileAiSettings'
+
+export type MobileAiSettingsFileInfo = {
+  exists: boolean
+  isDirectory?: boolean
+}
+
+export type MobileAiSettingsFileSystem = {
+  documentDirectory: string | null
+  getInfoAsync: (uri: string) => Promise<MobileAiSettingsFileInfo>
+  makeDirectoryAsync: (uri: string, options: { intermediates: true }) => Promise<void>
+  readAsStringAsync: (uri: string) => Promise<string>
+  writeAsStringAsync: (uri: string, content: string) => Promise<void>
+}
+
+export type MobileAiSettingsStorage = {
+  load: () => Promise<MobileAiSettings>
+  save: (settings: MobileAiSettings) => Promise<void>
+}
+
+export function createMobileAiSettingsStorage(
+  fileSystem: MobileAiSettingsFileSystem,
+): MobileAiSettingsStorage {
+  return {
+    load: async () => loadMobileAiSettings(fileSystem),
+    save: async (settings) => saveMobileAiSettings({ fileSystem, settings }),
+  }
+}
+
+async function loadMobileAiSettings(fileSystem: MobileAiSettingsFileSystem) {
+  const fileUri = settingsFileUri(fileSystem)
+  const info = await fileSystem.getInfoAsync(fileUri)
+  if (!info.exists || info.isDirectory) {
+    return defaultMobileAiSettings
+  }
+
+  return parseMobileAiSettings(await fileSystem.readAsStringAsync(fileUri))
+}
+
+async function saveMobileAiSettings({
+  fileSystem,
+  settings,
+}: {
+  fileSystem: MobileAiSettingsFileSystem
+  settings: MobileAiSettings
+}) {
+  await ensureDirectory({ fileSystem, uri: settingsRootUri(fileSystem) })
+  await fileSystem.writeAsStringAsync(settingsFileUri(fileSystem), JSON.stringify(settings))
+}
+
+function parseMobileAiSettings(content: string) {
+  try {
+    return normalizeMobileAiSettings(JSON.parse(content))
+  } catch {
+    return defaultMobileAiSettings
+  }
+}
+
+async function ensureDirectory({
+  fileSystem,
+  uri,
+}: {
+  fileSystem: MobileAiSettingsFileSystem
+  uri: string
+}) {
+  const info = await fileSystem.getInfoAsync(uri)
+  if (!info.exists) {
+    await fileSystem.makeDirectoryAsync(uri, { intermediates: true })
+  }
+}
+
+function settingsFileUri(fileSystem: MobileAiSettingsFileSystem) {
+  return `${settingsRootUri(fileSystem)}/ai-settings.json`
+}
+
+function settingsRootUri(fileSystem: MobileAiSettingsFileSystem) {
+  if (!fileSystem.documentDirectory) {
+    throw new Error('Expo FileSystem documentDirectory is unavailable')
+  }
+
+  return `${fileSystem.documentDirectory.replace(/\/+$/, '')}/state`
+}

apps/mobile/src/mobileAppStateStorage.test.ts

@@ -0,0 +1,60 @@
+import { describe, expect, it } from 'vitest'
+import {
+  createMobileAppStateStorage,
+  type MobileAppStateFileSystem,
+} from './mobileAppStateStorage'
+
+describe('mobile app state storage', () => {
+  it('returns default state when no app state file exists', async () => {
+    const storage = createMobileAppStateStorage(createMemoryAppStateFileSystem())
+
+    await expect(storage.load('personal')).resolves.toEqual({
+      activeVaultId: 'personal',
+      selectedNoteId: null,
+    })
+  })
+
+  it('persists and restores selected note id for the active vault', async () => {
+    const fileSystem = createMemoryAppStateFileSystem()
+    const storage = createMobileAppStateStorage(fileSystem)
+
+    await storage.save({ activeVaultId: 'personal', selectedNoteId: 'workflow' })
+
+    await expect(storage.load('personal')).resolves.toEqual({
+      activeVaultId: 'personal',
+      selectedNoteId: 'workflow',
+    })
+  })
+
+  it('ignores corrupt or mismatched state files', async () => {
+    const fileSystem = createMemoryAppStateFileSystem({
+      'file:///docs/state/app-state.json': '{"activeVaultId":"other","selectedNoteId":"workflow"}',
+    })
+    const storage = createMobileAppStateStorage(fileSystem)
+
+    await expect(storage.load('personal')).resolves.toEqual({
+      activeVaultId: 'personal',
+      selectedNoteId: null,
+    })
+  })
+})
+
+function createMemoryAppStateFileSystem(files: Record<string, string> = {}): MobileAppStateFileSystem {
+  const fileByUri = new Map(Object.entries(files))
+  const directoryUris = new Set(['file:///docs'])
+
+  return {
+    documentDirectory: 'file:///docs/',
+    getInfoAsync: async (uri) => ({
+      exists: fileByUri.has(uri) || directoryUris.has(uri),
+      isDirectory: directoryUris.has(uri),
+    }),
+    makeDirectoryAsync: async (uri) => {
+      directoryUris.add(uri)
+    },
+    readAsStringAsync: async (uri) => fileByUri.get(uri) ?? '',
+    writeAsStringAsync: async (uri, content) => {
+      fileByUri.set(uri, content)
+    },
+  }
+}

apps/mobile/src/mobileAppStateStorage.ts

@@ -0,0 +1,126 @@
+export type MobileAppState = {
+  activeVaultId: string
+  selectedNoteId: string | null
+}
+
+export type MobileAppStateFileInfo = {
+  exists: boolean
+  isDirectory?: boolean
+}
+
+export type MobileAppStateFileSystem = {
+  documentDirectory: string | null
+  getInfoAsync: (uri: string) => Promise<MobileAppStateFileInfo>
+  makeDirectoryAsync: (uri: string, options: { intermediates: true }) => Promise<void>
+  readAsStringAsync: (uri: string) => Promise<string>
+  writeAsStringAsync: (uri: string, content: string) => Promise<void>
+}
+
+export type MobileAppStateStorage = {
+  load: (activeVaultId: string) => Promise<MobileAppState>
+  save: (state: MobileAppState) => Promise<void>
+}
+
+export function createMobileAppStateStorage(
+  fileSystem: MobileAppStateFileSystem,
+): MobileAppStateStorage {
+  return {
+    load: async (activeVaultId) => loadMobileAppState({ activeVaultId, fileSystem }),
+    save: async (state) => saveMobileAppState({ fileSystem, state }),
+  }
+}
+
+async function loadMobileAppState({
+  activeVaultId,
+  fileSystem,
+}: {
+  activeVaultId: string
+  fileSystem: MobileAppStateFileSystem
+}) {
+  const fileUri = appStateFileUri(fileSystem)
+  const info = await fileSystem.getInfoAsync(fileUri)
+  if (!info.exists || info.isDirectory) {
+    return defaultMobileAppState(activeVaultId)
+  }
+
+  return parseMobileAppState({
+    activeVaultId,
+    content: await fileSystem.readAsStringAsync(fileUri),
+  })
+}
+
+async function saveMobileAppState({
+  fileSystem,
+  state,
+}: {
+  fileSystem: MobileAppStateFileSystem
+  state: MobileAppState
+}) {
+  const rootUri = appStateRootUri(fileSystem)
+  await ensureDirectory({ fileSystem, uri: rootUri })
+  await fileSystem.writeAsStringAsync(appStateFileUri(fileSystem), JSON.stringify(state))
+}
+
+function parseMobileAppState({
+  activeVaultId,
+  content,
+}: {
+  activeVaultId: string
+  content: string
+}) {
+  try {
+    return coerceMobileAppState({ activeVaultId, value: JSON.parse(content) })
+  } catch {
+    return defaultMobileAppState(activeVaultId)
+  }
+}
+
+function coerceMobileAppState({
+  activeVaultId,
+  value,
+}: {
+  activeVaultId: string
+  value: unknown
+}): MobileAppState {
+  if (!isStateRecord(value) || value.activeVaultId !== activeVaultId) {
+    return defaultMobileAppState(activeVaultId)
+  }
+
+  return {
+    activeVaultId,
+    selectedNoteId: typeof value.selectedNoteId === 'string' ? value.selectedNoteId : null,
+  }
+}
+
+function defaultMobileAppState(activeVaultId: string): MobileAppState {
+  return { activeVaultId, selectedNoteId: null }
+}
+
+async function ensureDirectory({
+  fileSystem,
+  uri,
+}: {
+  fileSystem: MobileAppStateFileSystem
+  uri: string
+}) {
+  const info = await fileSystem.getInfoAsync(uri)
+  if (!info.exists) {
+    await fileSystem.makeDirectoryAsync(uri, { intermediates: true })
+  }
+}
+
+function appStateFileUri(fileSystem: MobileAppStateFileSystem) {
+  return `${appStateRootUri(fileSystem)}/app-state.json`
+}
+
+function appStateRootUri(fileSystem: MobileAppStateFileSystem) {
+  if (!fileSystem.documentDirectory) {
+    throw new Error('Expo FileSystem documentDirectory is unavailable')
+  }
+
+  return `${fileSystem.documentDirectory.replace(/\/+$/, '')}/state`
+}
+
+function isStateRecord(value: unknown): value is { activeVaultId?: unknown; selectedNoteId?: unknown } {
+  return typeof value === 'object' && value !== null
+}

apps/mobile/src/mobileAutosaveQueue.test.ts

@@ -0,0 +1,125 @@
+import { describe, expect, it } from 'vitest'
+import { createMobileEditorDraft, type MobileEditorDraft } from './mobileEditorDraft'
+import { createMobileAutosaveQueue, type MobileAutosaveScheduler } from './mobileAutosaveQueue'
+import type { MobileEditorSaveState } from './mobileEditorSaveState'
+
+describe('mobile autosave queue', () => {
+  it('debounces drafts for the same note', async () => {
+    const scheduler = createManualScheduler()
+    const savedDrafts: MobileEditorDraft[] = []
+    const states: string[] = []
+    const queue = createMobileAutosaveQueue({
+      delayMs: 300,
+      scheduler,
+      onStateChange: (_noteId, state) => states.push(state.state),
+      saveDraft: async (draft) => {
+        savedDrafts.push(draft)
+        return { status: 'saved', path: `${draft.noteId}.md` }
+      },
+    })
+
+    queue.enqueue(draftFor('workflow', '<h1>Workflow</h1><p>First</p>'))
+    queue.enqueue(draftFor('workflow', '<h1>Workflow</h1><p>Second</p>'))
+
+    await scheduler.flush()
+
+    expect(savedDrafts).toHaveLength(1)
+    expect(savedDrafts[0]).toMatchObject({ canonicalMarkdown: '# Workflow\n\nSecond' })
+    expect(states).toEqual(['queued', 'queued', 'saving', 'saved'])
+  })
+
+  it('ignores stale save results when a newer draft was queued', async () => {
+    const scheduler = createManualScheduler()
+    const savedMarkdown: string[] = []
+    const states: MobileEditorSaveState[] = []
+    let resolveFirstSave: () => void = () => {
+      throw new Error('First save was not scheduled')
+    }
+    const queue = createMobileAutosaveQueue({
+      delayMs: 300,
+      scheduler,
+      onSavedDraft: (draft) => savedMarkdown.push(draft.canonicalMarkdown),
+      onStateChange: (_noteId, state) => states.push(state),
+      saveDraft: (draft) =>
+        draftMarkdown(draft).includes('First')
+          ? new Promise((resolve) => {
+              resolveFirstSave = () => resolve({ status: 'saved', path: `${draft.noteId}.md` })
+            })
+          : Promise.resolve({ status: 'saved', path: `${draft.noteId}.md` }),
+    })
+
+    queue.enqueue(draftFor('workflow', '<h1>Workflow</h1><p>First</p>'))
+    await scheduler.flush()
+    queue.enqueue(draftFor('workflow', '<h1>Workflow</h1><p>Second</p>'))
+    resolveFirstSave()
+    await Promise.resolve()
+    await scheduler.flush()
+
+    expect(states.map((state) => state.state)).toEqual(['queued', 'saving', 'queued', 'saving', 'saved'])
+    expect(savedMarkdown).toEqual(['# Workflow\n\nSecond'])
+  })
+
+  it('can cancel pending draft saves', async () => {
+    const scheduler = createManualScheduler()
+    const savedDrafts: MobileEditorDraft[] = []
+    const queue = createMobileAutosaveQueue({
+      delayMs: 300,
+      scheduler,
+      onStateChange: () => {},
+      saveDraft: async (draft) => {
+        savedDrafts.push(draft)
+        return { status: 'saved', path: `${draft.noteId}.md` }
+      },
+    })
+
+    queue.enqueue(draftFor('workflow', '<h1>Workflow</h1><p>First</p>'))
+    queue.cancelAll()
+    await scheduler.flush()
+
+    expect(savedDrafts).toEqual([])
+  })
+})
+
+function draftFor(noteId: string, editorHtml: string) {
+  return createMobileEditorDraft({
+    note: { id: noteId, title: 'Workflow', content: '# Workflow' },
+    editorHtml,
+  })
+}
+
+function draftMarkdown(draft: MobileEditorDraft) {
+  if (!draft.persistable) {
+    throw new Error('Expected persistable test draft')
+  }
+
+  return draft.canonicalMarkdown
+}
+
+function createManualScheduler() {
+  type ManualTimer = {
+    callback: () => void
+    active: boolean
+  }
+  const timers: ManualTimer[] = []
+  const scheduler: MobileAutosaveScheduler & { flush: () => Promise<void> } = {
+    set: (callback) => {
+      const timer = { callback, active: true }
+      timers.push(timer)
+
+      return timer
+    },
+    clear: (timer) => {
+      const manualTimer = timer as unknown as ManualTimer
+      manualTimer.active = false
+    },
+    flush: async () => {
+      const activeTimers = timers.splice(0).filter((timer) => timer.active)
+      for (const timer of activeTimers) {
+        timer.callback()
+      }
+      await Promise.resolve()
+    },
+  }
+
+  return scheduler
+}

apps/mobile/src/mobileAutosaveQueue.ts

@@ -0,0 +1,137 @@
+import type { MobileEditorDraft } from './mobileEditorDraft'
+import type { MobileEditorDraftSaveResult } from './mobileEditorDraftSave'
+import {
+  queuedMobileEditorSaveState,
+  saveResultState,
+  savingMobileEditorSaveState,
+  failedMobileEditorSaveState,
+  type MobileEditorSaveState,
+} from './mobileEditorSaveState'
+
+export type MobileAutosaveTimer = unknown
+
+export type MobileAutosaveScheduler = {
+  set: (callback: () => void, delayMs: number) => MobileAutosaveTimer
+  clear: (timer: MobileAutosaveTimer) => void
+}
+
+export type MobileAutosaveQueue = {
+  enqueue: (draft: MobileEditorDraft) => void
+  cancelAll: () => void
+}
+
+export type SavedMobileEditorDraft = Extract<MobileEditorDraft, { persistable: true }>
+
+export function createMobileAutosaveQueue({
+  delayMs,
+  onSavedDraft,
+  onStateChange,
+  saveDraft,
+  scheduler = nativeScheduler,
+}: {
+  delayMs: number
+  onSavedDraft?: (draft: SavedMobileEditorDraft) => void
+  onStateChange: (noteId: string, state: MobileEditorSaveState) => void
+  saveDraft: (draft: MobileEditorDraft) => Promise<MobileEditorDraftSaveResult>
+  scheduler?: MobileAutosaveScheduler
+}): MobileAutosaveQueue {
+  const generationByNoteId = new Map<string, number>()
+  const timerByNoteId = new Map<string, MobileAutosaveTimer>()
+
+  return {
+    enqueue: (draft) => {
+      const generation = nextGeneration({ draft, generationByNoteId })
+      clearPendingTimer({ draft, scheduler, timerByNoteId })
+      onStateChange(draft.noteId, queuedMobileEditorSaveState)
+      timerByNoteId.set(
+        draft.noteId,
+        scheduler.set(() => {
+          timerByNoteId.delete(draft.noteId)
+          void saveLatestDraft({ draft, generation, generationByNoteId, onSavedDraft, onStateChange, saveDraft })
+        }, delayMs),
+      )
+    },
+    cancelAll: () => {
+      for (const timer of timerByNoteId.values()) {
+        scheduler.clear(timer)
+      }
+      timerByNoteId.clear()
+    },
+  }
+}
+
+const nativeScheduler: MobileAutosaveScheduler = {
+  set: (callback, delayMs) => setTimeout(callback, delayMs),
+  clear: (timer) => clearTimeout(timer as ReturnType<typeof setTimeout>),
+}
+
+async function saveLatestDraft({
+  draft,
+  generation,
+  generationByNoteId,
+  onSavedDraft,
+  onStateChange,
+  saveDraft,
+}: {
+  draft: MobileEditorDraft
+  generation: number
+  generationByNoteId: Map<string, number>
+  onSavedDraft?: (draft: SavedMobileEditorDraft) => void
+  onStateChange: (noteId: string, state: MobileEditorSaveState) => void
+  saveDraft: (draft: MobileEditorDraft) => Promise<MobileEditorDraftSaveResult>
+}) {
+  onStateChange(draft.noteId, savingMobileEditorSaveState)
+  try {
+    const result = await saveDraft(draft)
+    if (isLatestGeneration({ draft, generation, generationByNoteId })) {
+      onStateChange(draft.noteId, saveResultState(result))
+      if (result.status === 'saved' && draft.persistable) {
+        onSavedDraft?.(draft)
+      }
+    }
+  } catch {
+    if (isLatestGeneration({ draft, generation, generationByNoteId })) {
+      onStateChange(draft.noteId, failedMobileEditorSaveState)
+    }
+  }
+}
+
+function nextGeneration({
+  draft,
+  generationByNoteId,
+}: {
+  draft: MobileEditorDraft
+  generationByNoteId: Map<string, number>
+}) {
+  const generation = (generationByNoteId.get(draft.noteId) ?? 0) + 1
+  generationByNoteId.set(draft.noteId, generation)
+
+  return generation
+}
+
+function clearPendingTimer({
+  draft,
+  scheduler,
+  timerByNoteId,
+}: {
+  draft: MobileEditorDraft
+  scheduler: MobileAutosaveScheduler
+  timerByNoteId: Map<string, MobileAutosaveTimer>
+}) {
+  const timer = timerByNoteId.get(draft.noteId)
+  if (timer) {
+    scheduler.clear(timer)
+  }
+}
+
+function isLatestGeneration({
+  draft,
+  generation,
+  generationByNoteId,
+}: {
+  draft: MobileEditorDraft
+  generation: number
+  generationByNoteId: Map<string, number>
+}) {
+  return generationByNoteId.get(draft.noteId) === generation
+}

apps/mobile/src/mobileCoreFlowSmoke.test.ts

@@ -0,0 +1,128 @@
+import { describe, expect, it } from 'vitest'
+import { createMobileEditorDraft } from './mobileEditorDraft'
+import { saveMobileEditorDraft } from './mobileEditorDraftSave'
+import { createMobileNoteFile } from './mobileNoteCreate'
+import { saveMobileNoteFrontmatter } from './mobileNoteFrontmatterSave'
+import { createMobileVaultConfig, type MobileVaultConfig } from './mobileVaultConfig'
+import { createStoredMobileVaultRepository } from './mobileVaultRepository'
+import { createMemoryMobileVaultStorage, type MobileVaultStorageDriver } from './mobileVaultStorage'
+
+describe('mobile core flow smoke', () => {
+  it('creates, opens, edits, updates properties, and deletes an app-local note', async () => {
+    const vault = createVault()
+    const storage = createMemoryMobileVaultStorage([])
+    const noteId = await createNote({ storage, vault })
+
+    const openedNote = await readNote({ noteId, storage, vault })
+    expect(openedNote).toMatchObject({ id: noteId, title: 'Morning Plan', type: 'Note' })
+
+    await saveEditorContent({ note: openedNote, storage, vault })
+    await expect(storage.readMarkdownFile(vault, `${noteId}.md`)).resolves.toBe([
+      '---',
+      'title: Morning Plan',
+      'type: Note',
+      'created: 2026-05-05T08:00:00.000Z',
+      '---',
+      '# Morning Plan',
+      '',
+      'Edited agenda',
+      '',
+      '> Follow up',
+    ].join('\n'))
+
+    await saveMobileNoteFrontmatter({
+      metadata: {
+        date: '5 May 2026',
+        icon: 'wrench',
+        status: 'Active',
+        tags: ['Tolaria MVP', 'mobile'],
+        type: 'Project',
+      },
+      noteId,
+      storage,
+      vault,
+    })
+
+    await expect(readNote({ noteId, storage, vault })).resolves.toMatchObject({
+      date: '5 May 2026',
+      icon: 'wrench',
+      status: 'Active',
+      tags: ['Tolaria MVP', 'mobile'],
+      type: 'Project',
+    })
+
+    await repository({ storage, vault }).deleteNote(noteId)
+    await expect(repository({ storage, vault }).readNote(noteId)).resolves.toBeNull()
+  })
+})
+
+async function createNote({
+  storage,
+  vault,
+}: {
+  storage: MobileVaultStorageDriver
+  vault: MobileVaultConfig
+}) {
+  const file = createMobileNoteFile({
+    now: new Date('2026-05-05T08:00:00.000Z'),
+    title: 'Morning Plan',
+  })
+  await storage.writeMarkdownFile(vault, file.path, file.content)
+
+  return file.path.replace(/\.md$/, '')
+}
+
+async function readNote({
+  noteId,
+  storage,
+  vault,
+}: {
+  noteId: string
+  storage: MobileVaultStorageDriver
+  vault: MobileVaultConfig
+}) {
+  const note = await repository({ storage, vault }).readNote(noteId)
+  if (!note) {
+    throw new Error(`Expected note ${noteId}`)
+  }
+
+  return note
+}
+
+async function saveEditorContent({
+  note,
+  storage,
+  vault,
+}: {
+  note: Awaited<ReturnType<typeof readNote>>
+  storage: MobileVaultStorageDriver
+  vault: MobileVaultConfig
+}) {
+  await saveMobileEditorDraft({
+    draft: createMobileEditorDraft({
+      note,
+      editorHtml: '<h1>Morning Plan</h1><p>Edited agenda</p><blockquote><p>Follow up</p></blockquote>',
+    }),
+    storage,
+    vault,
+  })
+}
+
+function repository({
+  storage,
+  vault,
+}: {
+  storage: MobileVaultStorageDriver
+  vault: MobileVaultConfig
+}) {
+  return createStoredMobileVaultRepository({ storage, vault })
+}
+
+function createVault() {
+  const result = createMobileVaultConfig({ id: 'personal', name: 'Personal Journal' })
+  if (!result.ok) {
+    throw new Error(result.error)
+  }
+
+  return result.config
+}

apps/mobile/src/mobileDemoVault.test.ts

@@ -0,0 +1,16 @@
+import { describe, expect, it } from 'vitest'
+import { shouldSeedDemoVault } from './mobileDemoVaultSeedPolicy'
+
+describe('mobile demo vault loading', () => {
+  it('does not seed demo notes into remote-backed vaults', () => {
+    expect(shouldSeedDemoVault({
+      id: 'personal',
+      name: 'Personal Journal',
+      remoteUrl: 'https://github.com/refactoringhq/tolaria.git',
+    })).toBe(false)
+  })
+
+  it('keeps local-only vaults seeded for first-run simulator QA', () => {
+    expect(shouldSeedDemoVault({ id: 'personal', name: 'Personal Journal' })).toBe(true)
+  })
+})

apps/mobile/src/mobileDemoVault.ts

@@ -0,0 +1,116 @@
+import { demoNoteSources } from './demoData'
+import type { MobileEditorDraft } from './mobileEditorDraft'
+import { saveMobileEditorDraft } from './mobileEditorDraftSave'
+import { saveMobileNoteFrontmatter } from './mobileNoteFrontmatterSave'
+import type { WritableMobileNoteFrontmatter } from './mobileNoteFrontmatterWrite'
+import { createMobileNoteFile } from './mobileNoteCreate'
+import {
+  createMobileVaultConfigFromMetadata,
+  defaultMobileVaultMetadata,
+  type MobileVaultMetadata,
+} from './mobileVaultMetadata'
+import { createNativeMobileVaultStorage } from './mobileNativeVaultStorage'
+import { createStoredMobileVaultRepository } from './mobileVaultRepository'
+import { seedMobileVaultIfEmpty } from './mobileVaultSeed'
+import type { MobileVaultFile } from './mobileVaultStorage'
+import { shouldSeedDemoVault } from './mobileDemoVaultSeedPolicy'
+
+export async function loadDemoVaultNotes(vaultMetadata = defaultMobileVaultMetadata) {
+  const storage = createNativeMobileVaultStorage()
+  const demoVault = createDemoVaultConfig(vaultMetadata)
+  if (shouldSeedDemoVault(vaultMetadata)) {
+    await seedMobileVaultIfEmpty({ files: demoVaultFiles(), storage, vault: demoVault })
+    await addMissingDemoVaultFiles({ files: demoVaultFiles(), storage, vault: demoVault })
+  }
+
+  return createStoredMobileVaultRepository({ storage, vault: demoVault }).listNotes()
+}
+
+export function saveDemoVaultDraft(draft: MobileEditorDraft, vaultMetadata = defaultMobileVaultMetadata) {
+  return saveMobileEditorDraft({
+    draft,
+    storage: createNativeMobileVaultStorage(),
+    vault: createDemoVaultConfig(vaultMetadata),
+  })
+}
+
+export async function createDemoVaultNote({
+  title,
+  vaultMetadata = defaultMobileVaultMetadata,
+}: {
+  title?: string
+  vaultMetadata?: MobileVaultMetadata
+} = {}) {
+  const storage = createNativeMobileVaultStorage()
+  const demoVault = createDemoVaultConfig(vaultMetadata)
+  const file = createMobileNoteFile({ title })
+  await storage.writeMarkdownFile(demoVault, file.path, file.content)
+
+  return createStoredMobileVaultRepository({ storage, vault: demoVault }).readNote(file.path.replace(/\.md$/, ''))
+}
+
+export async function deleteDemoVaultNote(noteId: string, vaultMetadata = defaultMobileVaultMetadata) {
+  const storage = createNativeMobileVaultStorage()
+  await createStoredMobileVaultRepository({
+    storage,
+    vault: createDemoVaultConfig(vaultMetadata),
+  }).deleteNote(noteId)
+}
+
+export function saveDemoVaultNoteFrontmatter({
+  metadata,
+  noteId,
+  vaultMetadata = defaultMobileVaultMetadata,
+}: {
+  metadata: WritableMobileNoteFrontmatter
+  noteId: string
+  vaultMetadata?: MobileVaultMetadata
+}) {
+  return saveDemoVaultDocumentChange({
+    vaultMetadata,
+    write: ({ storage, vault }) => saveMobileNoteFrontmatter({ metadata, noteId, storage, vault }),
+  })
+}
+
+function demoVaultFiles(): MobileVaultFile[] {
+  return demoNoteSources.map((source) => ({
+    path: source.filename,
+    content: source.content,
+  }))
+}
+
+function createDemoVaultConfig(vaultMetadata: MobileVaultMetadata) {
+  return createMobileVaultConfigFromMetadata(vaultMetadata)
+}
+
+
+function createDemoVaultStorageContext(vaultMetadata: MobileVaultMetadata) {
+  return {
+    storage: createNativeMobileVaultStorage(),
+    vault: createDemoVaultConfig(vaultMetadata),
+  }
+}
+
+function saveDemoVaultDocumentChange<T>({
+  vaultMetadata,
+  write,
+}: {
+  vaultMetadata: MobileVaultMetadata
+  write: (context: ReturnType<typeof createDemoVaultStorageContext>) => T
+}) {
+  return write(createDemoVaultStorageContext(vaultMetadata))
+}
+
+async function addMissingDemoVaultFiles({
+  files,
+  storage,
+  vault,
+}: {
+  files: MobileVaultFile[]
+  storage: ReturnType<typeof createNativeMobileVaultStorage>
+  vault: ReturnType<typeof createDemoVaultConfig>
+}) {
+  const existingPaths = new Set((await storage.listMarkdownFiles(vault)).map((file) => file.path))
+  const missingFiles = files.filter((file) => !existingPaths.has(file.path))
+  await Promise.all(missingFiles.map((file) => storage.writeMarkdownFile(vault, file.path, file.content)))
+}

apps/mobile/src/mobileDemoVaultRawNote.ts

@@ -0,0 +1,20 @@
+import { createNativeMobileVaultStorage } from './mobileNativeVaultStorage'
+import { saveMobileRawNote } from './mobileRawNoteSave'
+import { createMobileVaultConfigFromMetadata, defaultMobileVaultMetadata, type MobileVaultMetadata } from './mobileVaultMetadata'
+
+export function saveDemoVaultRawNote({
+  content,
+  noteId,
+  vaultMetadata = defaultMobileVaultMetadata,
+}: {
+  content: string
+  noteId: string
+  vaultMetadata?: MobileVaultMetadata
+}) {
+  return saveMobileRawNote({
+    content,
+    noteId,
+    storage: createNativeMobileVaultStorage(),
+    vault: createMobileVaultConfigFromMetadata(vaultMetadata),
+  })
+}

apps/mobile/src/mobileDemoVaultSeedPolicy.ts

@@ -0,0 +1,5 @@
+import type { MobileVaultMetadata } from './mobileVaultMetadata'
+
+export function shouldSeedDemoVault(vaultMetadata: MobileVaultMetadata) {
+  return !vaultMetadata.remoteUrl?.trim()
+}

apps/mobile/src/mobileDerivedRelationships.test.ts

@@ -0,0 +1,71 @@
+import { describe, expect, it } from 'vitest'
+import { mobileDerivedRelationshipGroups } from './mobileDerivedRelationships'
+import type { MobileNote } from './mobileNoteProjection'
+
+describe('mobile derived relationships', () => {
+  it('derives read-only inverse relationship groups from other notes', () => {
+    const current = note({ id: 'project/tolaria', title: 'Tolaria' })
+    const child = note({ belongsTo: ['[[project/tolaria|Tolaria]]'], id: 'essay', title: 'Essay' })
+    const related = note({ id: 'release', relatedTo: ['Tolaria'], title: 'Release' })
+    const custom = note({ id: 'owner', relationships: { owner: ['[[project/tolaria|Tolaria]]'] }, title: 'Owner' })
+
+    expect(mobileDerivedRelationshipGroups({ note: current, notes: [current, child, related, custom] })).toEqual([
+      { label: 'Contains', targets: ['[[essay|Essay]]'] },
+      { label: 'Related from', targets: ['[[release|Release]]'] },
+      { label: 'Owner from', targets: ['[[owner|Owner]]'] },
+    ])
+  })
+
+  it('deduplicates inverse targets inside a group', () => {
+    const current = note({ id: 'project/tolaria', title: 'Tolaria' })
+    const source = note({
+      belongsTo: ['[[project/tolaria|Tolaria]]', 'Tolaria'],
+      id: 'essay',
+      title: 'Essay',
+    })
+
+    expect(mobileDerivedRelationshipGroups({ note: current, notes: [current, source] })).toEqual([
+      { label: 'Contains', targets: ['[[essay|Essay]]'] },
+    ])
+  })
+})
+
+function note({
+  belongsTo = [],
+  has = [],
+  id,
+  relatedTo = [],
+  relationships = {},
+  title,
+}: {
+  belongsTo?: string[]
+  has?: string[]
+  id: string
+  relatedTo?: string[]
+  relationships?: Record<string, string[]>
+  title: string
+}): MobileNote {
+  return {
+    archived: false,
+    backlinks: [],
+    belongsTo,
+    content: `# ${title}`,
+    customProperties: {},
+    date: '',
+    favorite: false,
+    favoriteIndex: null,
+    has,
+    icon: 'file-text',
+    id,
+    modified: '',
+    outgoingLinks: [],
+    relatedTo,
+    relationships,
+    snippet: '',
+    status: undefined,
+    tags: [],
+    title,
+    type: 'Note',
+    words: 1,
+  }
+}

apps/mobile/src/mobileDerivedRelationships.ts

@@ -0,0 +1,68 @@
+import type { MobileNote } from './mobileNoteProjection'
+import { hasMobileRelationshipRef, mobileWikilinkForNote, uniqueMobileRelationshipRefs } from './mobileRelationshipRefs'
+
+export type MobileDerivedRelationshipGroup = {
+  label: string
+  targets: string[]
+}
+
+export function mobileDerivedRelationshipGroups({
+  note,
+  notes,
+}: {
+  note: MobileNote
+  notes: MobileNote[]
+}) {
+  const groups = new Map<string, string[]>()
+  for (const source of notes) {
+    if (source.id !== note.id) {
+      appendDerivedGroups({ groups, note, source })
+    }
+  }
+
+  return [...groups.entries()]
+    .map(([label, targets]) => ({ label, targets: uniqueMobileRelationshipRefs(targets) }))
+    .filter((group) => group.targets.length > 0)
+}
+
+function appendDerivedGroups({
+  groups,
+  note,
+  source,
+}: {
+  groups: Map<string, string[]>
+  note: MobileNote
+  source: MobileNote
+}) {
+  appendIfLinked({ groups, label: 'Contains', note, source, values: source.belongsTo })
+  appendIfLinked({ groups, label: 'Related from', note, source, values: source.relatedTo })
+  appendIfLinked({ groups, label: 'Part of', note, source, values: source.has })
+  for (const [key, values] of Object.entries(source.relationships)) {
+    appendIfLinked({ groups, label: `${formatRelationshipLabel(key)} from`, note, source, values })
+  }
+}
+
+function appendIfLinked({
+  groups,
+  label,
+  note,
+  source,
+  values,
+}: {
+  groups: Map<string, string[]>
+  label: string
+  note: MobileNote
+  source: MobileNote
+  values: string[]
+}) {
+  if (
+    hasMobileRelationshipRef({ target: mobileWikilinkForNote(note), values })
+    || hasMobileRelationshipRef({ target: note.title, values })
+  ) {
+    groups.set(label, [...groups.get(label) ?? [], mobileWikilinkForNote(source)])
+  }
+}
+
+function formatRelationshipLabel(key: string) {
+  return key.replace(/_/g, ' ').replace(/\b\w/g, (letter) => letter.toUpperCase())
+}

apps/mobile/src/mobileEditorDocument.test.ts

@@ -0,0 +1,114 @@
+import { describe, expect, it } from 'vitest'
+import { createMobileEditorDocument, createMobileEditorHtml } from './mobileEditorDocument'
+
+describe('mobile editor document', () => {
+  it('strips frontmatter and title heading from the displayed editor body', () => {
+    expect(
+      createMobileEditorDocument({
+        id: 'workflow',
+        title: 'Workflow Orchestration Essay',
+        content: [
+          '---',
+          'type: Essay',
+          '---',
+          '',
+          '# Workflow Orchestration Essay',
+          '',
+          'The current narrative: everything routed through an LLM.',
+        ].join('\n'),
+      }),
+    ).toEqual({
+      leadingTitle: 'Workflow Orchestration Essay',
+      blocks: [
+        {
+          id: '0:The current narrative: everything routed through an LLM.',
+          kind: 'paragraph',
+          text: 'The current narrative: everything routed through an LLM.',
+        },
+      ],
+    })
+  })
+
+  it('keeps colon paragraphs instead of treating them as frontmatter', () => {
+    const document = createMobileEditorDocument({
+      id: 'monday',
+      title: 'Notes for Monday',
+      content: '# Notes for Monday\n\nBottom line up front: ship the smallest useful slice.',
+    })
+
+    expect(document.blocks).toEqual([
+      {
+        id: '0:Bottom line up front: ship the smallest useful slice.',
+        kind: 'paragraph',
+        text: 'Bottom line up front: ship the smallest useful slice.',
+      },
+    ])
+  })
+
+  it('normalizes markdown bullets for the native placeholder surface', () => {
+    const document = createMobileEditorDocument({
+      id: 'plan',
+      title: 'Plan',
+      content: '# Plan\n\n- Sidebar\n* Note list',
+    })
+
+    expect(document.blocks).toEqual([
+      {
+        id: '0:- Sidebar',
+        kind: 'bullet',
+        text: 'Sidebar',
+      },
+      {
+        id: '1:* Note list',
+        kind: 'bullet',
+        text: 'Note list',
+      },
+    ])
+  })
+
+  it('creates escaped HTML for TenTap initial content', () => {
+    const html = createMobileEditorHtml({
+      leadingTitle: 'Tolaria <mobile>',
+      blocks: [
+        {
+          id: '0:Use TenTap',
+          kind: 'paragraph',
+          text: 'Use TenTap & keep markdown durable',
+        },
+        {
+          id: '1:- Escape quotes',
+          kind: 'bullet',
+          text: 'Escape "quotes"',
+        },
+      ],
+    })
+
+    expect(html).toBe(
+      '<h1>Tolaria &lt;mobile&gt;</h1><p>Use TenTap &amp; keep markdown durable</p><ul><li>Escape &quot;quotes&quot;</li></ul>',
+    )
+  })
+
+  it('does not reinsert an H1 after the note body no longer starts with the title heading', () => {
+    const document = createMobileEditorDocument({
+      id: 'untitled',
+      title: 'Untitled',
+      content: 'Body without a leading heading',
+    })
+
+    expect(document.leadingTitle).toBeNull()
+    expect(createMobileEditorHtml(document)).toBe('<p>Body without a leading heading</p>')
+  })
+
+  it('renders wikilinks as clickable rich links in the editor HTML', () => {
+    const document = createMobileEditorDocument({
+      id: 'links',
+      title: 'Links',
+      content: '# Links\n\nSee [[mobile-roadmap|Mobile Roadmap]] next.',
+    })
+
+    expect(createMobileEditorHtml(document)).toContain(
+      '<a data-tolaria-wikilink="true" href="tolaria-note:mobile-roadmap">Mobile Roadmap</a>',
+    )
+  })
+
+})

apps/mobile/src/mobileEditorDocument.ts

@@ -0,0 +1,89 @@
+import { splitFrontmatter } from '@tolaria/markdown'
+
+export type MobileEditorBlock = {
+  id: string
+  kind: 'bullet' | 'paragraph'
+  text: string
+}
+
+export type MobileEditorDocument = {
+  leadingTitle: string | null
+  blocks: MobileEditorBlock[]
+}
+
+export type MobileEditorDocumentInput = {
+  id: string
+  title: string
+  content: string
+}
+
+export function createMobileEditorDocument(input: MobileEditorDocumentInput): MobileEditorDocument {
+  const [, body] = splitFrontmatter(input.content)
+
+  return {
+    leadingTitle: leadingTitle({ body, title: input.title }),
+    blocks: createBlocks({ body, title: input.title }),
+  }
+}
+
+export function createMobileEditorHtml(document: MobileEditorDocument) {
+  return `${titleHtml(document.leadingTitle)}${document.blocks.map(blockToHtml).join('') || '<p></p>'}`
+}
+
+function leadingTitle({ body, title }: { body: string; title: string }) {
+  const firstLine = body.split('\n').find((line) => line.trim().length > 0)?.trim()
+  return firstLine && isTitleHeading({ line: firstLine, title }) ? title : null
+}
+
+function createBlocks({ body, title }: { body: string; title: string }) {
+  return body
+    .split('\n')
+    .map((line) => line.trim())
+    .filter((line) => line && !isTitleHeading({ line, title }))
+    .map((line, index) => createBlock({ index, line }))
+}
+
+function createBlock({ index, line }: { index: number; line: string }): MobileEditorBlock {
+  const bulletText = bulletContent({ line })
+
+  return {
+    id: `${index}:${line}`,
+    kind: bulletText ? 'bullet' : 'paragraph',
+    text: bulletText ?? line,
+  }
+}
+
+function bulletContent({ line }: { line: string }) {
+  const match = /^[-*]\s+(.+)$/.exec(line)
+  return match?.[1] ?? null
+}
+
+function isTitleHeading({ line, title }: { line: string; title: string }) {
+  return line === `# ${title}`
+}
+
+function blockToHtml(block: MobileEditorBlock) {
+  const text = inlineTextToHtml(block.text)
+  return block.kind === 'bullet' ? `<ul><li>${text}</li></ul>` : `<p>${text}</p>`
+}
+
+function titleHtml(title: string | null) {
+  return title ? `<h1>${escapeHtml({ value: title })}</h1>` : ''
+}
+
+function inlineTextToHtml(value: string) {
+  return escapeHtml({ value }).replace(/\[\[([^[\]]+?)\]\]/g, (_match, inner: string) => {
+    const [target, alias] = inner.split('|')
+    const label = alias?.trim() || target.trim()
+    return `<a data-tolaria-wikilink="true" href="tolaria-note:${encodeURIComponent(target.trim())}">${label}</a>`
+  })
+}
+
+function escapeHtml({ value }: { value: string }) {
+  return value
+    .replace(/&/g, '&amp;')
+    .replace(/</g, '&lt;')
+    .replace(/>/g, '&gt;')
+    .replace(/"/g, '&quot;')
+    .replace(/'/g, '&#39;')
+}

apps/mobile/src/mobileEditorDraft.test.ts

@@ -0,0 +1,305 @@
+import { describe, expect, it } from 'vitest'
+import { createMobileEditorDraft } from './mobileEditorDraft'
+
+describe('mobile editor draft', () => {
+  it('serializes supported TenTap HTML into canonical Markdown', () => {
+    expect(
+      createMobileEditorDraft({
+        note: {
+          id: 'workflow',
+          title: 'Workflow',
+          content: '# Workflow\n\nOriginal markdown',
+        },
+        editorHtml: '<h1>Workflow</h1><p>Edited content</p><ul><li>First</li><li>Second</li></ul>',
+      }),
+    ).toEqual({
+      noteId: 'workflow',
+      sourceMarkdown: '# Workflow\n\nOriginal markdown',
+      editorHtml: '<h1>Workflow</h1><p>Edited content</p><ul><li>First</li><li>Second</li></ul>',
+      persistable: true,
+      canonicalMarkdown: '# Workflow\n\nEdited content\n\n- First\n- Second',
+    })
+  })
+
+  it('preserves source frontmatter outside the edited body', () => {
+    const draft = createMobileEditorDraft({
+      note: {
+        id: 'workflow',
+        title: 'Workflow',
+        content: '---\ntype: Essay\n---\n\n# Workflow\n\nOriginal markdown',
+      },
+      editorHtml: '<h1>Workflow</h1><p>Edited content</p>',
+    })
+
+    expect(draft).toMatchObject({
+      persistable: true,
+      canonicalMarkdown: '---\ntype: Essay\n---\n# Workflow\n\nEdited content',
+    })
+  })
+
+  it('decodes escaped text before writing Markdown', () => {
+    const draft = createMobileEditorDraft({
+      note: {
+        id: 'symbols',
+        title: 'Symbols',
+        content: '# Symbols',
+      },
+      editorHtml: '<h1>Symbols</h1><p>Use &lt;tags&gt; &amp; &quot;quotes&quot;, &#33;&#x3f; and non&nbsp;breaking space</p>',
+    })
+
+    expect(draft).toMatchObject({
+      persistable: true,
+      canonicalMarkdown: '# Symbols\n\nUse <tags> & "quotes", !? and non breaking space',
+    })
+  })
+
+  it('serializes headings, ordered lists, and inline marks', () => {
+    const draft = createMobileEditorDraft({
+      note: {
+        id: 'formatting',
+        title: 'Formatting',
+        content: '# Formatting',
+      },
+      editorHtml: [
+        '<h2>Section</h2>',
+        '<p>Use <strong>bold</strong>, <em>emphasis</em>, <code>code</code>, and <a href="https://tolaria.app">links</a>.</p>',
+        '<ol><li>First</li><li>Second</li></ol>',
+      ].join(''),
+    })
+
+    expect(draft).toMatchObject({
+      persistable: true,
+      canonicalMarkdown: [
+        '## Section',
+        '',
+        'Use **bold**, *emphasis*, `code`, and [links](https://tolaria.app).',
+        '',
+        '1. First',
+        '1. Second',
+      ].join('\n'),
+    })
+  })
+
+  it('serializes safe link destinations and decodes escaped link URLs', () => {
+    const draft = createMobileEditorDraft({
+      note: {
+        id: 'links',
+        title: 'Links',
+        content: '# Links',
+      },
+      editorHtml: [
+        '<p><a href="https://tolaria.app?ref=notes&amp;device=ios">Website</a></p>',
+        '<p><a href="mailto:hello@tolaria.app">Email</a></p>',
+        '<p><a href="notes/workflow.md">Relative note</a></p>',
+      ].join(''),
+    })
+
+    expect(draft).toMatchObject({
+      persistable: true,
+      canonicalMarkdown: [
+        '[Website](https://tolaria.app?ref=notes&device=ios)',
+        '',
+        '[Email](mailto:hello@tolaria.app)',
+        '',
+        '[Relative note](notes/workflow.md)',
+      ].join('\n'),
+    })
+  })
+
+  it('serializes rich wikilinks back to desktop-compatible wikilink markdown', () => {
+    const draft = createMobileEditorDraft({
+      note: {
+        id: 'links',
+        title: 'Links',
+        content: '# Links',
+      },
+      editorHtml: '<p>See <a data-tolaria-wikilink="true" href="tolaria-note:mobile-roadmap">Mobile Roadmap</a>.</p>',
+    })
+
+    expect(draft).toMatchObject({
+      persistable: true,
+      canonicalMarkdown: 'See [[mobile-roadmap|Mobile Roadmap]].',
+    })
+  })
+
+  it('serializes blockquotes, code blocks, and strikethrough', () => {
+    const draft = createMobileEditorDraft({
+      note: {
+        id: 'formatting',
+        title: 'Formatting',
+        content: '# Formatting',
+      },
+      editorHtml: [
+        '<blockquote><p>Quoted idea</p><p>Second line</p></blockquote>',
+        '<pre><code class="language-ts">const value = &lt;string&gt;input</code></pre>',
+        '<p>Keep <s>stale</s> text visible.</p>',
+      ].join(''),
+    })
+
+    expect(draft).toMatchObject({
+      persistable: true,
+      canonicalMarkdown: [
+        '> Quoted idea',
+        '> Second line',
+        '',
+        '```ts',
+        'const value = <string>input',
+        '```',
+        '',
+        'Keep ~~stale~~ text visible.',
+      ].join('\n'),
+    })
+  })
+
+  it('serializes horizontal rules from TenTap HTML', () => {
+    const draft = createMobileEditorDraft({
+      note: {
+        id: 'break',
+        title: 'Break',
+        content: '# Break',
+      },
+      editorHtml: '<p>Before</p><hr><p>After</p>',
+    })
+
+    expect(draft).toMatchObject({
+      persistable: true,
+      canonicalMarkdown: 'Before\n\n---\n\nAfter',
+    })
+  })
+
+  it('serializes TenTap-style task list items', () => {
+    const draft = createMobileEditorDraft({
+      note: {
+        id: 'tasks',
+        title: 'Tasks',
+        content: '# Tasks',
+      },
+      editorHtml: [
+        '<ul data-type="taskList">',
+        '<li data-checked="true"><label><input type="checkbox" checked=""></label><div><p>Done</p></div></li>',
+        '<li data-checked="false"><label><input type="checkbox"></label><div><p>Todo</p></div></li>',
+        '</ul>',
+      ].join(''),
+    })
+
+    expect(draft).toMatchObject({
+      persistable: true,
+      canonicalMarkdown: '- [x] Done\n- [ ] Todo',
+    })
+  })
+
+  it('blocks unsupported HTML instead of persisting unknown editor output', () => {
+    expect(
+      createMobileEditorDraft({
+        note: {
+          id: 'workflow',
+          title: 'Workflow',
+          content: '# Workflow\n\nOriginal markdown',
+        },
+        editorHtml: '<figure><figcaption>Not yet supported</figcaption></figure>',
+      }),
+    ).toEqual({
+      noteId: 'workflow',
+      sourceMarkdown: '# Workflow\n\nOriginal markdown',
+      editorHtml: '<figure><figcaption>Not yet supported</figcaption></figure>',
+      persistable: false,
+      blockedReason: 'unsupportedEditorHtml',
+    })
+  })
+
+  it('blocks unsafe link destinations instead of persisting risky Markdown', () => {
+    expect(
+      createMobileEditorDraft({
+        note: {
+          id: 'links',
+          title: 'Links',
+          content: '# Links',
+        },
+        editorHtml: '<p><a href="javascript:alert(1)">Unsafe</a></p>',
+      }),
+    ).toMatchObject({
+      noteId: 'links',
+      persistable: false,
+      blockedReason: 'unsupportedEditorHtml',
+    })
+  })
+
+  it('serializes simple TenTap tables as Markdown tables', () => {
+    expect(
+      createMobileEditorDraft({
+        note: {
+          id: 'table',
+          title: 'Table',
+          content: '# Table',
+        },
+        editorHtml: [
+          '<table><tbody>',
+          '<tr><th><p>Name</p></th><th><p>Status</p></th></tr>',
+          '<tr><td><p>Tolaria</p></td><td><p>Ready &amp; synced</p></td></tr>',
+          '<tr><td><p>Pipe</p></td><td><p>A | B</p></td></tr>',
+          '</tbody></table>',
+        ].join(''),
+      }),
+    ).toMatchObject({
+      noteId: 'table',
+      persistable: true,
+      canonicalMarkdown: [
+        '| Name | Status |',
+        '| --- | --- |',
+        '| Tolaria | Ready & synced |',
+        '| Pipe | A \\| B |',
+      ].join('\n'),
+    })
+  })
+
+  it('blocks malformed tables instead of guessing columns', () => {
+    expect(
+      createMobileEditorDraft({
+        note: {
+          id: 'table',
+          title: 'Table',
+          content: '# Table',
+        },
+        editorHtml: '<table><tbody><tr><td>Name</td><td>Status</td></tr><tr><td>Tolaria</td></tr></tbody></table>',
+      }),
+    ).toMatchObject({
+      noteId: 'table',
+      persistable: false,
+      blockedReason: 'unsupportedEditorHtml',
+    })
+  })
+
+  it('serializes safe image attachments inside supported blocks', () => {
+    expect(
+      createMobileEditorDraft({
+        note: {
+          id: 'image',
+          title: 'Image',
+          content: '# Image',
+        },
+        editorHtml: '<p>Before</p><p><img src="attachments/sketch.png" alt="Interface sketch"></p><p>After</p>',
+      }),
+    ).toMatchObject({
+      noteId: 'image',
+      persistable: true,
+      canonicalMarkdown: 'Before\n\n![Interface sketch](attachments/sketch.png)\n\nAfter',
+    })
+  })
+
+  it('blocks transient or unsafe image sources inside otherwise supported blocks', () => {
+    expect(
+      createMobileEditorDraft({
+        note: {
+          id: 'image',
+          title: 'Image',
+          content: '# Image',
+        },
+        editorHtml: '<p><img src="blob:https://tolaria.app/preview" alt="Attachment"></p>',
+      }),
+    ).toMatchObject({
+      noteId: 'image',
+      persistable: false,
+      blockedReason: 'unsupportedEditorHtml',
+    })
+  })
+})

apps/mobile/src/mobileEditorDraft.ts

@@ -0,0 +1,67 @@
+import { splitFrontmatter } from '@tolaria/markdown'
+import type { MobileEditorDocumentInput } from './mobileEditorDocument'
+import { serializeSupportedMobileEditorHtml } from './mobileEditorHtmlMarkdown'
+
+export type MobileEditorDraft =
+  | {
+      noteId: string
+      sourceMarkdown: string
+      editorHtml: string
+      persistable: true
+      canonicalMarkdown: string
+    }
+  | {
+      noteId: string
+      sourceMarkdown: string
+      editorHtml: string
+      persistable: false
+      blockedReason: 'unsupportedEditorHtml'
+    }
+
+export function createMobileEditorDraft({
+  editorHtml,
+  note,
+}: {
+  editorHtml: string
+  note: MobileEditorDocumentInput
+}): MobileEditorDraft {
+  const markdownBody = serializeSupportedMobileEditorHtml({ editorHtml })
+  if (!markdownBody) {
+    return createBlockedDraft({ editorHtml, note })
+  }
+
+  return {
+    noteId: note.id,
+    sourceMarkdown: note.content,
+    editorHtml,
+    persistable: true,
+    canonicalMarkdown: withFrontmatter({ markdownBody, sourceMarkdown: note.content }),
+  }
+}
+
+function createBlockedDraft({
+  editorHtml,
+  note,
+}: {
+  editorHtml: string
+  note: MobileEditorDocumentInput
+}): MobileEditorDraft {
+  return {
+    noteId: note.id,
+    sourceMarkdown: note.content,
+    editorHtml,
+    persistable: false,
+    blockedReason: 'unsupportedEditorHtml',
+  }
+}
+
+function withFrontmatter({
+  markdownBody,
+  sourceMarkdown,
+}: {
+  markdownBody: string
+  sourceMarkdown: string
+}) {
+  const [frontmatter] = splitFrontmatter(sourceMarkdown)
+  return frontmatter ? `${frontmatter}${markdownBody}` : markdownBody
+}

apps/mobile/src/mobileEditorDraftSave.test.ts

@@ -0,0 +1,48 @@
+import { describe, expect, it } from 'vitest'
+import { createMobileEditorDraft } from './mobileEditorDraft'
+import { saveMobileEditorDraft } from './mobileEditorDraftSave'
+import { createMobileVaultConfig } from './mobileVaultConfig'
+import { createMemoryMobileVaultStorage } from './mobileVaultStorage'
+
+const vault = createVault()
+
+describe('mobile editor draft save', () => {
+  it('writes persistable editor drafts as canonical Markdown', async () => {
+    const storage = createMemoryMobileVaultStorage([])
+    const draft = createMobileEditorDraft({
+      note: { id: 'notes/workflow', title: 'Workflow', content: '# Workflow' },
+      editorHtml: '<h1>Workflow</h1><p>Edited</p>',
+    })
+
+    await expect(saveMobileEditorDraft({ draft, storage, vault })).resolves.toEqual({
+      status: 'saved',
+      path: 'notes/workflow.md',
+    })
+
+    await expect(storage.readMarkdownFile(vault, 'notes/workflow.md')).resolves.toBe('# Workflow\n\nEdited')
+  })
+
+  it('does not write blocked editor drafts', async () => {
+    const storage = createMemoryMobileVaultStorage([])
+    const draft = createMobileEditorDraft({
+      note: { id: 'workflow', title: 'Workflow', content: '# Workflow' },
+      editorHtml: '<figure><figcaption>Unsupported</figcaption></figure>',
+    })
+
+    await expect(saveMobileEditorDraft({ draft, storage, vault })).resolves.toEqual({
+      status: 'blocked',
+      reason: 'unsupportedEditorHtml',
+    })
+
+    await expect(storage.listMarkdownFiles(vault)).resolves.toEqual([])
+  })
+})
+
+function createVault() {
+  const result = createMobileVaultConfig({ id: 'personal', name: 'Personal Journal' })
+  if (!result.ok) {
+    throw new Error(result.error)
+  }
+
+  return result.config
+}

apps/mobile/src/mobileEditorDraftSave.ts

@@ -0,0 +1,36 @@
+import type { MobileEditorDraft } from './mobileEditorDraft'
+import type { MobileVaultConfig } from './mobileVaultConfig'
+import type { MobileVaultStorageDriver } from './mobileVaultStorage'
+
+export type MobileEditorDraftSaveResult =
+  | {
+      status: 'saved'
+      path: string
+    }
+  | {
+      status: 'blocked'
+      reason: 'unsupportedEditorHtml'
+    }
+
+export async function saveMobileEditorDraft({
+  draft,
+  storage,
+  vault,
+}: {
+  draft: MobileEditorDraft
+  storage: MobileVaultStorageDriver
+  vault: MobileVaultConfig
+}): Promise<MobileEditorDraftSaveResult> {
+  if (!draft.persistable) {
+    return { status: 'blocked', reason: draft.blockedReason }
+  }
+
+  const path = draftPath(draft)
+  await storage.writeMarkdownFile(vault, path, draft.canonicalMarkdown)
+
+  return { status: 'saved', path }
+}
+
+function draftPath(draft: MobileEditorDraft) {
+  return `${draft.noteId}.md`
+}

apps/mobile/src/mobileEditorHtmlMarkdown.ts

@@ -0,0 +1,315 @@
+import {
+  canSerializeMobileEditorTable,
+  isMobileEditorTableBlock,
+  mobileEditorTableMarkdown,
+} from './mobileEditorTableMarkdown'
+import { decodeMobileHtmlEntities } from './mobileHtmlEntities'
+
+type EditorHtmlInput = {
+  editorHtml: string
+}
+
+type HtmlInput = {
+  html: string
+}
+
+type ListItemInput = HtmlInput & {
+  ordered: boolean
+}
+
+const supportedHtmlTags = new Set([
+  'a',
+  'b',
+  'blockquote',
+  'br',
+  'code',
+  'del',
+  'div',
+  'em',
+  'h1',
+  'h2',
+  'h3',
+  'h4',
+  'h5',
+  'h6',
+  'hr',
+  'i',
+  'img',
+  'input',
+  'label',
+  'li',
+  'ol',
+  'p',
+  'pre',
+  's',
+  'strike',
+  'strong',
+  'table',
+  'tbody',
+  'td',
+  'th',
+  'thead',
+  'tr',
+  'ul',
+])
+
+export function serializeSupportedMobileEditorHtml(input: EditorHtmlInput) {
+  const html = normalizeBlockSpacing(input)
+  const blocks = html.match(/<(h[1-6]|p|ul|ol|blockquote|pre|table)(?:\s[^>]*)?>[\s\S]*?<\/\1>|<hr(?:\s[^>]*)?\s*\/?>/gi)
+  if (!blocks) {
+    return null
+  }
+
+  if (!canSerializeBlocks({ blocks, html })) {
+    return null
+  }
+
+  return blocks.map((block) => serializeBlock({ html: block })).join('\n\n')
+}
+
+function canSerializeBlocks({
+  blocks,
+  html,
+}: {
+  blocks: RegExpMatchArray
+  html: string
+}) {
+  return blocks.join('') === html && !blocks.some((block) => blocksUnsafeEditorOutput({ html: block }))
+}
+
+function serializeBlock(input: HtmlInput) {
+  const headingLevel = headingMarkdownLevel(input)
+  if (headingLevel) {
+    return `${'#'.repeat(headingLevel)} ${inlineMarkdown(input)}`
+  }
+
+  if (isListBlock(input)) {
+    return listItemMarkdown(input).join('\n')
+  }
+
+  if (isBlockquote(input)) {
+    return blockquoteMarkdown(input)
+  }
+
+  if (isCodeBlock(input)) {
+    return codeBlockMarkdown(input)
+  }
+
+  if (isHorizontalRule(input)) {
+    return '---'
+  }
+
+  if (isMobileEditorTableBlock(input)) {
+    return mobileEditorTableMarkdown(input)
+  }
+
+  return inlineMarkdown(input)
+}
+
+function normalizeBlockSpacing(input: EditorHtmlInput) {
+  return input.editorHtml.trim().replace(/>\s+</g, '><')
+}
+
+function headingMarkdownLevel(input: HtmlInput) {
+  const match = input.html.match(/^<h([1-6])/i)
+  return match ? Number(match[1]) : null
+}
+
+function isListBlock(input: HtmlInput) {
+  return input.html.match(/^<(ul|ol)/i)
+}
+
+function isBlockquote(input: HtmlInput) {
+  return input.html.match(/^<blockquote/i)
+}
+
+function isCodeBlock(input: HtmlInput) {
+  return input.html.match(/^<pre/i)
+}
+
+function isHorizontalRule(input: HtmlInput) {
+  return input.html.match(/^<hr/i)
+}
+
+function listItemMarkdown(input: HtmlInput) {
+  const ordered = input.html.match(/^<ol/i)
+  return [...input.html.matchAll(/<li(?:\s[^>]*)?>([\s\S]*?)<\/li>/gi)].map((match) =>
+    formatListItem({ ordered: Boolean(ordered), html: match[0] }),
+  )
+}
+
+function formatListItem(input: ListItemInput) {
+  const taskMarker = markdownTaskMarker(input)
+  const prefix = taskMarker ? `- ${taskMarker}` : input.ordered ? '1.' : '-'
+
+  return `${prefix} ${inlineMarkdown(input)}`
+}
+
+function markdownTaskMarker(input: HtmlInput) {
+  if (input.html.match(/data-checked=["']true/i) || input.html.match(/<input[^>]+checked/i)) {
+    return '[x]'
+  }
+
+  if (input.html.match(/data-checked=["']false/i) || input.html.match(/<input[^>]+type=["']checkbox/i)) {
+    return '[ ]'
+  }
+
+  return null
+}
+
+function blockquoteMarkdown(input: HtmlInput) {
+  const paragraphLines = [...input.html.matchAll(/<p(?:\s[^>]*)?>([\s\S]*?)<\/p>/gi)].map((match) =>
+    inlineMarkdown({ html: match[0] }),
+  )
+  const lines = paragraphLines.length > 0 ? paragraphLines : [inlineMarkdown(input)]
+
+  return lines.map((line) => `> ${line}`).join('\n')
+}
+
+function codeBlockMarkdown(input: HtmlInput) {
+  return [
+    `\`\`\`${codeBlockLanguage(input)}`,
+    decodeMobileHtmlEntities({ text: codeBlockText(input) }).trimEnd(),
+    '```',
+  ].join('\n')
+}
+
+function codeBlockLanguage(input: HtmlInput) {
+  return input.html.match(/language-([A-Za-z0-9_-]+)/)?.[1] ?? ''
+}
+
+function codeBlockText(input: HtmlInput) {
+  const code = input.html.match(/<code(?:\s[^>]*)?>([\s\S]*?)<\/code>/i)?.[1] ?? input.html
+  return stripRemainingTags(code.replace(/<br\s*\/?>/gi, '\n'))
+}
+
+function inlineMarkdown(input: HtmlInput) {
+  return decodeMobileHtmlEntities({ text: stripRemainingTags(markInlineHtml(input)).trim() })
+}
+
+function markInlineHtml(input: HtmlInput) {
+  return input.html
+    .replace(/<br\s*\/?>/gi, '\n')
+    .replace(/<img\b[^>]*>/gi, (tag) => imageMarkdown({ tag }) ?? tag)
+    .replace(/<(strong|b)(?:\s[^>]*)?>([\s\S]*?)<\/\1>/gi, '**$2**')
+    .replace(/<(em|i)(?:\s[^>]*)?>([\s\S]*?)<\/\1>/gi, '*$2*')
+    .replace(/<(s|strike|del)(?:\s[^>]*)?>([\s\S]*?)<\/\1>/gi, '~~$2~~')
+    .replace(/<code(?:\s[^>]*)?>([\s\S]*?)<\/code>/gi, '`$1`')
+    .replace(/<a\b[^>]*>([\s\S]*?)<\/a>/gi, (tag, label) => linkMarkdown({ tag, label }) ?? tag)
+}
+
+function containsUnsupportedTag(input: HtmlInput) {
+  return [...input.html.matchAll(/<\/?([a-z0-9-]+)/gi)]
+    .some((match) => !supportedHtmlTags.has(match[1].toLowerCase()))
+}
+
+function blocksUnsafeEditorOutput(input: HtmlInput) {
+  return containsUnsupportedTag(input) || containsUnsafeImage(input) || containsUnsafeLink(input) || containsUnsafeTable(input)
+}
+
+function containsUnsafeImage(input: HtmlInput) {
+  return [...input.html.matchAll(/<img\b[^>]*>/gi)].some((match) => !imageMarkdown({ tag: match[0] }))
+}
+
+function containsUnsafeLink(input: HtmlInput) {
+  return [...input.html.matchAll(/<a\b[^>]*>/gi)].some((match) => !linkMarkdown({ tag: match[0], label: '' }))
+}
+
+function containsUnsafeTable(input: HtmlInput) {
+  return Boolean(isMobileEditorTableBlock(input)) && !canSerializeMobileEditorTable(input)
+}
+
+function imageMarkdown(input: { tag: string }) {
+  const src = imageSource(input)
+  if (!src) {
+    return null
+  }
+
+  const alt = htmlAttribute({ tag: input.tag, name: 'alt' }) ?? ''
+  return `![${decodeMobileHtmlEntities({ text: alt })}](${decodeMobileHtmlEntities({ text: src })})`
+}
+
+function imageSource(input: { tag: string }) {
+  const src = htmlAttribute({ tag: input.tag, name: 'src' })
+  return src && isPersistableImageSource({ src }) ? src : null
+}
+
+function linkMarkdown(input: { tag: string; label: string }) {
+  const wikilink = wikilinkMarkdown(input)
+  if (wikilink) {
+    return wikilink
+  }
+
+  const href = linkDestination(input)
+  return href ? `[${input.label}](${href})` : null
+}
+
+function wikilinkMarkdown(input: { tag: string; label: string }) {
+  const href = htmlAttribute({ tag: input.tag, name: 'href' })
+  if (!href?.startsWith('tolaria-note:')) {
+    return null
+  }
+
+  const target = decodeURIComponent(href.slice('tolaria-note:'.length)).trim()
+  const label = decodeMobileHtmlEntities({ text: input.label }).trim()
+  if (!target) {
+    return null
+  }
+
+  return label && label !== target ? `[[${target}|${label}]]` : `[[${target}]]`
+}
+
+function linkDestination(input: { tag: string }) {
+  const href = htmlAttribute({ tag: input.tag, name: 'href' })
+  return href && isPersistableLinkDestination({ href }) ? decodeMobileHtmlEntities({ text: href }) : null
+}
+
+function htmlAttribute(input: { tag: string; name: string }) {
+  const match = input.tag.match(new RegExp(`${input.name}=["']([^"']+)["']`, 'i'))
+  return match?.[1] ?? null
+}
+
+function isPersistableImageSource(input: { src: string }) {
+  if (input.src.match(/[\n\r]/)) {
+    return false
+  }
+
+  return isRemoteImageSource(input) || isRelativeImageSource(input)
+}
+
+function isRemoteImageSource(input: { src: string }) {
+  return input.src.startsWith('https://') || input.src.startsWith('http://')
+}
+
+function isRelativeImageSource(input: { src: string }) {
+  return !input.src.startsWith('/') && !input.src.startsWith('//') && !input.src.match(/^[A-Za-z][A-Za-z0-9+.-]*:/)
+}
+
+function isPersistableLinkDestination(input: { href: string }) {
+  const href = decodeMobileHtmlEntities({ text: input.href })
+  if (href.match(/[\n\r]/)) {
+    return false
+  }
+
+  return isRemoteLinkDestination({ href }) || isMailLinkDestination({ href }) || isRelativeLinkDestination({ href }) || isWikilinkDestination({ href })
+}
+
+function isRemoteLinkDestination(input: { href: string }) {
+  return input.href.startsWith('https://') || input.href.startsWith('http://')
+}
+
+function isMailLinkDestination(input: { href: string }) {
+  return input.href.startsWith('mailto:')
+}
+
+function isRelativeLinkDestination(input: { href: string }) {
+  return !input.href.startsWith('/') && !input.href.startsWith('//') && !input.href.match(/^[A-Za-z][A-Za-z0-9+.-]*:/)
+}
+
+function isWikilinkDestination(input: { href: string }) {
+  return input.href.startsWith('tolaria-note:') && input.href.length > 'tolaria-note:'.length
+}
+
+function stripRemainingTags(value: string) {
+  return value.replace(/<[^>]+>/g, '')
+}

apps/mobile/src/mobileEditorMessages.test.ts

@@ -0,0 +1,53 @@
+import { describe, expect, it } from 'vitest'
+import { parseEditorMessage } from './mobileEditorMessages'
+
+describe('mobile editor messages', () => {
+  it('parses empty wikilink queries with cursor geometry', () => {
+    expect(parseEditorMessage(JSON.stringify({
+      frame: { bottom: 124, left: 48 },
+      query: '',
+      type: 'wikilinkQuery',
+    }))).toEqual({
+      frame: { bottom: 124, left: 48 },
+      query: '',
+      type: 'wikilinkQuery',
+    })
+  })
+
+  it('ignores invalid wikilink query geometry', () => {
+    expect(parseEditorMessage(JSON.stringify({
+      frame: { bottom: '124', left: 48 },
+      query: 'roadmap',
+      type: 'wikilinkQuery',
+    }))).toEqual({
+      frame: null,
+      query: 'roadmap',
+      type: 'wikilinkQuery',
+    })
+  })
+
+  it('parses hardware Tab list indentation messages', () => {
+    expect(parseEditorMessage(JSON.stringify({
+      direction: 'in',
+      type: 'listIndent',
+    }))).toEqual({
+      direction: 'in',
+      type: 'listIndent',
+    })
+
+    expect(parseEditorMessage(JSON.stringify({
+      direction: 'out',
+      type: 'listIndent',
+    }))).toEqual({
+      direction: 'out',
+      type: 'listIndent',
+    })
+  })
+
+  it('rejects malformed list indentation messages', () => {
+    expect(parseEditorMessage(JSON.stringify({
+      direction: 'sideways',
+      type: 'listIndent',
+    }))).toBeNull()
+  })
+})

apps/mobile/src/mobileEditorMessages.ts

@@ -0,0 +1,88 @@
+export type MobileEditorMessage =
+  | { target: string; type: 'openWikilink' }
+  | { command: 'fileNewNote'; type: 'shortcut' }
+  | { direction: 'in' | 'out'; type: 'listIndent' }
+  | { frame: MobileEditorWikilinkFrame | null; query: string | null; type: 'wikilinkQuery' }
+
+export type MobileEditorWikilinkFrame = {
+  bottom: number
+  left: number
+}
+
+export function parseEditorMessage(data: string): MobileEditorMessage | null {
+  try {
+    return normalizeEditorMessage(JSON.parse(data))
+  } catch {
+    return null
+  }
+}
+
+function normalizeEditorMessage(value: unknown): MobileEditorMessage | null {
+  if (!isMessageRecord(value)) {
+    return null
+  }
+  if (isWikilinkQueryMessage(value)) {
+    return { frame: wikilinkFrame(value.frame), query: value.query, type: 'wikilinkQuery' }
+  }
+  if (isListIndentMessage(value)) {
+    return { direction: value.direction, type: 'listIndent' }
+  }
+  if (value.type === 'openWikilink' && typeof value.target === 'string') {
+    return { target: value.target, type: 'openWikilink' }
+  }
+  if (value.type === 'shortcut' && value.command === 'fileNewNote') {
+    return { command: 'fileNewNote', type: 'shortcut' }
+  }
+
+  return null
+}
+
+function isMessageRecord(value: unknown): value is {
+  command?: unknown
+  direction?: unknown
+  frame?: unknown
+  query?: unknown
+  target?: unknown
+  type?: unknown
+} {
+  return typeof value === 'object' && value !== null
+}
+
+function isWikilinkQueryMessage(value: {
+  frame?: unknown
+  query?: unknown
+  type?: unknown
+}): value is {
+  frame?: unknown
+  query: string | null
+  type: 'wikilinkQuery'
+} {
+  return value.type === 'wikilinkQuery'
+    && (typeof value.query === 'string' || value.query === null)
+}
+
+function wikilinkFrame(value: unknown): MobileEditorWikilinkFrame | null {
+  if (!isFrameRecord(value)) {
+    return null
+  }
+
+  return { bottom: value.bottom, left: value.left }
+}
+
+function isFrameRecord(value: unknown): value is MobileEditorWikilinkFrame {
+  return typeof value === 'object'
+    && value !== null
+    && typeof (value as { bottom?: unknown }).bottom === 'number'
+    && typeof (value as { left?: unknown }).left === 'number'
+}
+
+function isListIndentMessage(value: {
+  direction?: unknown
+  type?: unknown
+}): value is {
+  direction: 'in' | 'out'
+  type: 'listIndent'
+} {
+  return value.type === 'listIndent'
+    && (value.direction === 'in' || value.direction === 'out')
+}

apps/mobile/src/mobileEditorSaveState.test.ts

@@ -0,0 +1,28 @@
+import { describe, expect, it } from 'vitest'
+import {
+  failedMobileEditorSaveState,
+  idleMobileEditorSaveState,
+  queuedMobileEditorSaveState,
+  saveResultState,
+  savingMobileEditorSaveState,
+} from './mobileEditorSaveState'
+
+describe('mobile editor save state', () => {
+  it('provides stable labels for direct save states', () => {
+    expect(idleMobileEditorSaveState.label).toBe('Ready')
+    expect(queuedMobileEditorSaveState.label).toBe('Edited')
+    expect(savingMobileEditorSaveState.label).toBe('Saving')
+    expect(failedMobileEditorSaveState.label).toBe('Save failed')
+  })
+
+  it('derives visible state from save results', () => {
+    expect(saveResultState({ status: 'saved', path: 'workflow.md' })).toEqual({
+      state: 'saved',
+      label: 'Saved',
+    })
+    expect(saveResultState({ status: 'blocked', reason: 'unsupportedEditorHtml' })).toEqual({
+      state: 'blocked',
+      label: 'Blocked',
+    })
+  })
+})

apps/mobile/src/mobileEditorSaveState.ts

@@ -0,0 +1,53 @@
+import type { MobileEditorDraftSaveResult } from './mobileEditorDraftSave'
+
+export type MobileEditorSaveState =
+  | {
+      state: 'idle'
+      label: 'Ready'
+    }
+  | {
+      state: 'queued'
+      label: 'Edited'
+    }
+  | {
+      state: 'saving'
+      label: 'Saving'
+    }
+  | {
+      state: 'saved'
+      label: 'Saved'
+    }
+  | {
+      state: 'blocked'
+      label: 'Blocked'
+    }
+  | {
+      state: 'failed'
+      label: 'Save failed'
+    }
+
+export const idleMobileEditorSaveState: MobileEditorSaveState = {
+  state: 'idle',
+  label: 'Ready',
+}
+
+export const queuedMobileEditorSaveState: MobileEditorSaveState = {
+  state: 'queued',
+  label: 'Edited',
+}
+
+export const savingMobileEditorSaveState: MobileEditorSaveState = {
+  state: 'saving',
+  label: 'Saving',
+}
+
+export const failedMobileEditorSaveState: MobileEditorSaveState = {
+  state: 'failed',
+  label: 'Save failed',
+}
+
+export function saveResultState(result: MobileEditorDraftSaveResult): MobileEditorSaveState {
+  return result.status === 'saved'
+    ? { state: 'saved', label: 'Saved' }
+    : { state: 'blocked', label: 'Blocked' }
+}

apps/mobile/src/mobileEditorTableMarkdown.ts

@@ -0,0 +1,62 @@
+import { decodeMobileHtmlEntities } from './mobileHtmlEntities'
+
+type HtmlInput = {
+  html: string
+}
+
+type TableRow = {
+  cells: string[]
+}
+
+export function isMobileEditorTableBlock(input: HtmlInput) {
+  return input.html.match(/^<table/i)
+}
+
+export function canSerializeMobileEditorTable(input: HtmlInput) {
+  const rows = tableRows(input)
+  const columnCount = rows[0]?.cells.length ?? 0
+
+  return columnCount > 0 && rows.every((row) => row.cells.length === columnCount)
+}
+
+export function mobileEditorTableMarkdown(input: HtmlInput) {
+  const rows = tableRows(input)
+  const header = rows[0]?.cells ?? []
+  const body = rows.slice(1).map(tableRowMarkdown)
+
+  return [
+    tableRowMarkdown({ cells: header }),
+    tableSeparator({ columnCount: header.length }),
+    ...body,
+  ].join('\n')
+}
+
+function tableRows(input: HtmlInput) {
+  return [...input.html.matchAll(/<tr(?:\s[^>]*)?>([\s\S]*?)<\/tr>/gi)]
+    .map((match) => tableRow({ html: match[1] }))
+}
+
+function tableRow(input: HtmlInput): TableRow {
+  return {
+    cells: [...input.html.matchAll(/<t[hd](?:\s[^>]*)?>([\s\S]*?)<\/t[hd]>/gi)]
+      .map((match) => tableCellMarkdown({ html: match[1] })),
+  }
+}
+
+function tableCellMarkdown(input: HtmlInput) {
+  return decodeMobileHtmlEntities({ text: stripCellTags(input).trim() })
+    .replace(/\s+/g, ' ')
+    .replace(/\|/g, '\\|')
+}
+
+function tableRowMarkdown(input: TableRow) {
+  return `| ${input.cells.join(' | ')} |`
+}
+
+function tableSeparator(input: { columnCount: number }) {
+  return tableRowMarkdown({ cells: Array.from({ length: input.columnCount }, () => '---') })
+}
+
+function stripCellTags(input: HtmlInput) {
+  return input.html.replace(/<br\s*\/?>/gi, ' ').replace(/<[^>]+>/g, '')
+}

apps/mobile/src/mobileEditorWebViewSetup.ts

@@ -0,0 +1,150 @@
+export const mobileEditorSetupScript = `
+  document.documentElement.lang = navigator.language || "en";
+  document.addEventListener("keydown", function(event) {
+    if (isFileNewShortcut(event)) {
+      event.preventDefault();
+      postEditorMessage({ type: "shortcut", command: "fileNewNote" });
+      return;
+    }
+    if (!isTabInsideEditor(event)) return;
+    event.preventDefault();
+    postEditorMessage({
+      type: "listIndent",
+      direction: event.shiftKey ? "out" : "in"
+    });
+  }, true);
+  document.addEventListener("click", function(event) {
+    var link = event.target && event.target.closest && event.target.closest("a[href^='tolaria-note:']");
+    if (!link) return;
+    event.preventDefault();
+    postEditorMessage({
+      type: "openWikilink",
+      target: decodeURIComponent(String(link.getAttribute("href") || "").replace(/^tolaria-note:/, ""))
+    });
+  }, true);
+  function isFileNewShortcut(event) {
+    return (event.metaKey || event.ctrlKey)
+      && !event.altKey
+      && String(event.key).toLowerCase() === "n";
+  }
+  function isTabInsideEditor(event) {
+    if (event.key !== "Tab") return false;
+    var selection = window.getSelection();
+    var node = selection && selection.anchorNode;
+    return Boolean(node && containingEditor(node));
+  }
+  function containingEditor(node) {
+    var editor = document.querySelector(".ProseMirror");
+    var container = node.nodeType === 1 ? node : node.parentNode;
+    return editor && container && editor.contains(container);
+  }
+  function activeWikilinkQuery() {
+    var selection = window.getSelection();
+    if (!isCollapsedTextSelection(selection)) return null;
+    if (!containingEditor(selection.anchorNode)) return null;
+    return wikilinkQueryBeforeCursor(selection);
+  }
+  function isCollapsedTextSelection(selection) {
+    return Boolean(selection
+      && selection.anchorNode
+      && selection.anchorNode.nodeType === 3
+      && selection.rangeCount > 0
+      && selection.isCollapsed);
+  }
+  function wikilinkQueryBeforeCursor(selection) {
+    var prefix = String(selection.anchorNode.textContent || "").slice(0, selection.anchorOffset);
+    var start = prefix.lastIndexOf("[[");
+    if (start < 0) return null;
+    var query = cleanWikilinkQuery(prefix.slice(start + 2));
+    if (query === null) return null;
+    return {
+      frame: wikilinkQueryFrame(selection),
+      query: query
+    };
+  }
+  function cleanWikilinkQuery(query) {
+    return query.indexOf("]]") >= 0 || query.indexOf("\\n") >= 0 ? null : query;
+  }
+  function emitWikilinkQuery() {
+    var activeQuery = activeWikilinkQuery();
+    postEditorMessage({
+      type: "wikilinkQuery",
+      frame: activeQuery ? activeQuery.frame : null,
+      query: activeQuery ? activeQuery.query : null
+    });
+  }
+  function wikilinkQueryFrame(selection) {
+    var range = selection.getRangeAt(0).cloneRange();
+    var rect = range.getBoundingClientRect();
+    if (hasVisibleFrame(rect)) {
+      return {
+        bottom: rect.bottom,
+        left: rect.left
+      };
+    }
+    return fallbackWikilinkQueryFrame(selection);
+  }
+  function fallbackWikilinkQueryFrame(selection) {
+    var container = selection.anchorNode && selection.anchorNode.parentElement;
+    var rect = container && container.getBoundingClientRect && container.getBoundingClientRect();
+    return {
+      bottom: rect ? rect.bottom : 0,
+      left: rect ? rect.left : 0
+    };
+  }
+  function hasVisibleFrame(rect) {
+    if (!rect) return false;
+    return Boolean(rect.bottom || rect.left);
+  }
+  function postEditorMessage(message) {
+    window.ReactNativeWebView && window.ReactNativeWebView.postMessage(JSON.stringify(message));
+  }
+  document.addEventListener("keyup", emitWikilinkQuery, true);
+  document.addEventListener("mouseup", emitWikilinkQuery, true);
+  document.addEventListener("selectionchange", emitWikilinkQuery, true);
+  true;
+`
+
+export const mobileEditorCss = `
+  * {
+    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif !important;
+  }
+
+  html,
+  body,
+  #root,
+  .ProseMirror {
+    color: #292825;
+    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
+    font-size: 18px;
+    line-height: 1.55;
+  }
+
+  .ProseMirror {
+    padding: 0;
+  }
+
+  .ProseMirror h1 {
+    font-family: inherit;
+    font-size: 42px;
+    font-weight: 760;
+    letter-spacing: 0;
+    line-height: 1.08;
+    margin: 18px 0 28px;
+  }
+
+  .ProseMirror p,
+  .ProseMirror li,
+  .ProseMirror blockquote {
+    font-family: inherit;
+  }
+
+  .ProseMirror a[href^="tolaria-note:"] {
+    color: #3367f6;
+    font-weight: 650;
+    text-decoration: none;
+    border-radius: 5px;
+    background: #e8eeff;
+    padding: 1px 4px;
+  }
+`

apps/mobile/src/mobileExpoGitFileSystem.ts

@@ -0,0 +1,310 @@
+import { Buffer } from 'buffer'
+import { createMobileVaultConfigFromMetadata } from './mobileVaultMetadata'
+import type { MobileVaultMetadata } from './mobileVaultMetadata'
+import type { ExpoMobileVaultFileInfo, ExpoMobileVaultFileSystem } from './mobileExpoVaultStorage'
+import type { PromiseFsClient } from 'isomorphic-git'
+
+type MobileGitStat = {
+  ctime: Date
+  ctimeMs: number
+  dev: number
+  gid: number
+  ino: number
+  isDirectory: () => boolean
+  isFile: () => boolean
+  isSymbolicLink: () => boolean
+  mode: number
+  mtime: Date
+  mtimeMs: number
+  size: number
+  uid: number
+}
+
+type MobileGitReadOptions = 'utf8' | { encoding?: 'base64' | 'utf8' }
+type MobileGitWriteOptions = { encoding?: 'base64' | 'utf8' }
+type MobileGitFileData = string | Uint8Array
+type ExistingPathInput = {
+  fileSystem: ExpoMobileVaultFileSystem
+  path: string
+  rootUri: string
+}
+
+export type MobileExpoGitFileSystemContext = {
+  dir: string
+  fs: PromiseFsClient
+}
+
+export function createMobileExpoGitFileSystem({
+  fileSystem,
+  vault,
+}: {
+  fileSystem: ExpoMobileVaultFileSystem
+  vault: MobileVaultMetadata
+}): MobileExpoGitFileSystemContext {
+  const rootUri = mobileExpoGitVaultRootUri({ fileSystem, vault })
+  const dir = '/vault'
+
+  return {
+    dir,
+    fs: {
+      promises: {
+        chmod: async () => {},
+        lstat: (path: string) => statPath({ fileSystem, path, rootUri }),
+        mkdir: (path: string) => mkdirPath({ fileSystem, path, rootUri }),
+        readFile: (path: string, options?: MobileGitReadOptions) => readFile({ fileSystem, options, path, rootUri }),
+        readlink: async () => {
+          throw createFileSystemError('ENOTSUP', 'Symbolic links are not supported in mobile vaults.')
+        },
+        readdir: (path: string) => readDirectory({ fileSystem, path, rootUri }),
+        rmdir: (path: string) => removeDirectory({ fileSystem, path, rootUri }),
+        stat: (path: string) => statPath({ fileSystem, path, rootUri }),
+        symlink: async () => {
+          throw createFileSystemError('ENOTSUP', 'Symbolic links are not supported in mobile vaults.')
+        },
+        unlink: (path: string) => unlinkPath({ fileSystem, path, rootUri }),
+        writeFile: (path: string, data: MobileGitFileData, options?: MobileGitWriteOptions) =>
+          writeFile({ data, fileSystem, options, path, rootUri }),
+      },
+    },
+  }
+}
+
+export function mobileExpoGitVaultRootUri({
+  fileSystem,
+  vault,
+}: {
+  fileSystem: ExpoMobileVaultFileSystem
+  vault: MobileVaultMetadata
+}) {
+  if (!fileSystem.documentDirectory) {
+    throw new Error('Expo FileSystem documentDirectory is unavailable')
+  }
+
+  const vaultConfig = createMobileVaultConfigFromMetadata(vault)
+  return appendUri({
+    root: fileSystem.documentDirectory,
+    segments: ['vaults', vaultConfig.storage.directoryName || vaultConfig.id],
+  })
+}
+
+async function mkdirPath({
+  fileSystem,
+  path,
+  rootUri,
+}: {
+  fileSystem: ExpoMobileVaultFileSystem
+  path: string
+  rootUri: string
+}) {
+  const uri = uriForPath({ path, rootUri })
+  const info = await fileSystem.getInfoAsync(uri)
+  if (info.exists && !info.isDirectory) {
+    throw createFileSystemError('ENOTDIR', `Path is not a directory: ${path}`)
+  }
+
+  if (!info.exists) {
+    await fileSystem.makeDirectoryAsync(uri, { intermediates: true })
+  }
+}
+
+async function readDirectory({
+  fileSystem,
+  path,
+  rootUri,
+}: ExistingPathInput) {
+  await existingDirectory({ fileSystem, path, rootUri })
+
+  return fileSystem.readDirectoryAsync(uriForPath({ path, rootUri }))
+}
+
+async function readFile({
+  fileSystem,
+  options,
+  path,
+  rootUri,
+}: {
+  fileSystem: ExpoMobileVaultFileSystem
+  options?: MobileGitReadOptions
+  path: string
+  rootUri: string
+}) {
+  const info = await existingInfo({ fileSystem, path, rootUri })
+  if (info.isDirectory) {
+    throw createFileSystemError('EISDIR', `Path is a directory: ${path}`)
+  }
+
+  const uri = uriForPath({ path, rootUri })
+  return readAsUtf8(options)
+    ? fileSystem.readAsStringAsync(uri, { encoding: 'utf8' })
+    : Buffer.from(await fileSystem.readAsStringAsync(uri, { encoding: 'base64' }), 'base64')
+}
+
+async function writeFile({
+  data,
+  fileSystem,
+  options,
+  path,
+  rootUri,
+}: {
+  data: MobileGitFileData
+  fileSystem: ExpoMobileVaultFileSystem
+  options?: MobileGitWriteOptions
+  path: string
+  rootUri: string
+}) {
+  await ensureParentDirectory({ fileSystem, path, rootUri })
+
+  if (typeof data === 'string' && writeAsUtf8(options)) {
+    await fileSystem.writeAsStringAsync(uriForPath({ path, rootUri }), data, { encoding: 'utf8' })
+    return
+  }
+
+  await fileSystem.writeAsStringAsync(
+    uriForPath({ path, rootUri }),
+    dataToBase64(data),
+    { encoding: 'base64' },
+  )
+}
+
+async function unlinkPath({
+  fileSystem,
+  path,
+  rootUri,
+}: ExistingPathInput) {
+  await existingFile({ fileSystem, path, rootUri })
+
+  await fileSystem.deleteAsync(uriForPath({ path, rootUri }))
+}
+
+async function removeDirectory({
+  fileSystem,
+  path,
+  rootUri,
+}: ExistingPathInput) {
+  await existingDirectory({ fileSystem, path, rootUri })
+
+  await fileSystem.deleteAsync(uriForPath({ path, rootUri }))
+}
+
+async function statPath({
+  fileSystem,
+  path,
+  rootUri,
+}: {
+  fileSystem: ExpoMobileVaultFileSystem
+  path: string
+  rootUri: string
+}): Promise<MobileGitStat> {
+  return statForInfo(await existingInfo({ fileSystem, path, rootUri }))
+}
+
+async function existingInfo({
+  fileSystem,
+  path,
+  rootUri,
+}: ExistingPathInput) {
+  const info = await fileSystem.getInfoAsync(uriForPath({ path, rootUri }))
+  if (!info.exists) {
+    throw createFileSystemError('ENOENT', `Path does not exist: ${path}`)
+  }
+
+  return info
+}
+
+async function existingDirectory(input: ExistingPathInput) {
+  const info = await existingInfo(input)
+  if (!info.isDirectory) {
+    throw createFileSystemError('ENOTDIR', `Path is not a directory: ${input.path}`)
+  }
+}
+
+async function existingFile(input: ExistingPathInput) {
+  const info = await existingInfo(input)
+  if (info.isDirectory) {
+    throw createFileSystemError('EISDIR', `Path is a directory: ${input.path}`)
+  }
+}
+
+function statForInfo(info: ExpoMobileVaultFileInfo): MobileGitStat {
+  const modifiedMs = Math.round((info.modificationTime ?? 0) * 1000)
+  const modified = new Date(modifiedMs)
+  const isDirectory = info.isDirectory === true
+
+  return {
+    ctime: modified,
+    ctimeMs: modifiedMs,
+    dev: 0,
+    gid: 0,
+    ino: 0,
+    isDirectory: () => isDirectory,
+    isFile: () => !isDirectory,
+    isSymbolicLink: () => false,
+    mode: isDirectory ? 0o040000 : 0o100644,
+    mtime: modified,
+    mtimeMs: modifiedMs,
+    size: info.size ?? 0,
+    uid: 0,
+  }
+}
+
+async function ensureParentDirectory({
+  fileSystem,
+  path,
+  rootUri,
+}: {
+  fileSystem: ExpoMobileVaultFileSystem
+  path: string
+  rootUri: string
+}) {
+  const segments = normalizedSegments(path)
+  const parentSegments = segments.slice(0, -1)
+  if (parentSegments.length === 0) {
+    return
+  }
+
+  await fileSystem.makeDirectoryAsync(appendUri({ root: rootUri, segments: parentSegments }), { intermediates: true })
+}
+
+function uriForPath({ path, rootUri }: { path: string; rootUri: string }) {
+  return appendUri({ root: rootUri, segments: normalizedSegments(path) })
+}
+
+function normalizedSegments(path: string) {
+  const pathWithoutRoot = path.replace(/^\/+vault\/?/, '')
+  const segments = pathWithoutRoot.replaceAll('\\', '/').split('/').filter(Boolean)
+  if (segments.some(isUnsafeSegment)) {
+    throw createFileSystemError('EINVAL', `Unsafe mobile Git path: ${path}`)
+  }
+
+  return segments
+}
+
+function isUnsafeSegment(segment: string) {
+  return segment === '.' || segment === '..' || segment.includes('/')
+}
+
+function readAsUtf8(options?: MobileGitReadOptions) {
+  return options === 'utf8' || (typeof options === 'object' && options.encoding === 'utf8')
+}
+
+function writeAsUtf8(options?: MobileGitWriteOptions) {
+  return options?.encoding === 'utf8'
+}
+
+function dataToBase64(data: MobileGitFileData) {
+  return typeof data === 'string'
+    ? Buffer.from(data, 'utf8').toString('base64')
+    : Buffer.from(data).toString('base64')
+}
+
+function appendUri(input: { root: string; segments: string[] }) {
+  const base = input.root.replace(/\/+$/, '')
+  const path = input.segments.filter(Boolean).join('/')
+
+  return path ? `${base}/${path}` : base
+}
+
+function createFileSystemError(code: string, message: string) {
+  const error = new Error(message)
+  return Object.assign(error, { code })
+}

apps/mobile/src/mobileExpoNativeGitModule.ts

@@ -0,0 +1,6 @@
+import { requireOptionalNativeModule } from 'expo-modules-core'
+import { loadMobileGitNativeModule } from './mobileNativeGitModule'
+
+export function loadExpoMobileGitNativeModule() {
+  return loadMobileGitNativeModule({ loadModule: requireOptionalNativeModule })
+}

apps/mobile/src/mobileExpoVaultStorage.test.ts

@@ -0,0 +1,124 @@
+import { describe, expect, it } from 'vitest'
+import { createExpoMobileVaultStorage, type ExpoMobileVaultFileSystem } from './mobileExpoVaultStorage'
+import { createMobileVaultConfig } from './mobileVaultConfig'
+
+const vault = createVault()
+
+describe('Expo mobile vault storage', () => {
+  it('lists nested markdown files from the app-local vault directory', async () => {
+    const fileSystem = createFakeFileSystem({
+      'file:///documents/vaults/personal-journal/zeta.md': '# Zeta',
+      'file:///documents/vaults/personal-journal/notes/alpha.md': '# Alpha',
+      'file:///documents/vaults/personal-journal/asset.png': 'binary',
+    })
+
+    await expect(createExpoMobileVaultStorage(fileSystem).listMarkdownFiles(vault)).resolves.toEqual([
+      { path: 'notes/alpha.md', content: '# Alpha' },
+      { path: 'zeta.md', content: '# Zeta' },
+    ])
+  })
+
+  it('creates parent directories before writing markdown files', async () => {
+    const fileSystem = createFakeFileSystem({})
+    const storage = createExpoMobileVaultStorage(fileSystem)
+
+    await storage.writeMarkdownFile(vault, 'notes/new.md', '# New')
+
+    await expect(storage.readMarkdownFile(vault, 'notes/new.md')).resolves.toBe('# New')
+  })
+
+  it('deletes markdown files idempotently from the app-local vault directory', async () => {
+    const storage = createExpoMobileVaultStorage(createFakeFileSystem({
+      'file:///documents/vaults/personal-journal/notes/new.md': '# New',
+    }))
+
+    await storage.deleteMarkdownFile(vault, 'notes/new.md')
+    await storage.deleteMarkdownFile(vault, 'notes/new.md')
+
+    await expect(storage.readMarkdownFile(vault, 'notes/new.md')).resolves.toBeNull()
+  })
+
+
+  it('rejects paths outside the app-local vault directory', async () => {
+    const storage = createExpoMobileVaultStorage(createFakeFileSystem({}))
+
+    await expect(storage.writeMarkdownFile(vault, '../outside.md', '# Nope')).rejects.toThrow(
+      'Unsafe mobile vault path',
+    )
+  })
+})
+
+function createVault() {
+  const result = createMobileVaultConfig({ id: 'personal', name: 'Personal Journal' })
+  if (!result.ok) {
+    throw new Error(result.error)
+  }
+
+  return result.config
+}
+
+function createFakeFileSystem(files: Record<string, string>): ExpoMobileVaultFileSystem {
+  const fileByUri = new Map(Object.entries(files))
+  const directoryUris = new Set(['file:///documents'])
+  for (const uri of fileByUri.keys()) {
+    addParentDirectories(directoryUris, uri)
+  }
+
+  return {
+    deleteAsync: async (uri) => {
+      fileByUri.delete(uri)
+    },
+    documentDirectory: 'file:///documents',
+    getInfoAsync: async (uri) => ({
+      exists: fileByUri.has(uri) || directoryUris.has(uri),
+      isDirectory: directoryUris.has(uri),
+    }),
+    makeDirectoryAsync: async (uri) => {
+      addDirectory(directoryUris, uri)
+    },
+    readAsStringAsync: async (uri) => {
+      const content = fileByUri.get(uri)
+      if (content === undefined) {
+        throw new Error(`Missing fake file: ${uri}`)
+      }
+
+      return content
+    },
+    readDirectoryAsync: async (uri) => listDirectoryNames({ directoryUris, fileByUri, uri }),
+    writeAsStringAsync: async (uri, content) => {
+      addParentDirectories(directoryUris, uri)
+      fileByUri.set(uri, content)
+    },
+  }
+}
+
+function listDirectoryNames(input: {
+  directoryUris: Set<string>
+  fileByUri: Map<string, string>
+  uri: string
+}) {
+  const names = new Set<string>()
+  const prefix = `${input.uri.replace(/\/+$/, '')}/`
+  for (const uri of [...input.directoryUris, ...input.fileByUri.keys()]) {
+    const remaining = uri.startsWith(prefix) ? uri.slice(prefix.length) : ''
+    const name = remaining.split('/')[0]
+    if (name) {
+      names.add(name)
+    }
+  }
+
+  return [...names].sort()
+}
+
+function addParentDirectories(directoryUris: Set<string>, fileUri: string) {
+  addDirectory(directoryUris, fileUri.split('/').slice(0, -1).join('/'))
+}
+
+function addDirectory(directoryUris: Set<string>, uri: string) {
+  const segments = uri.split('/')
+  for (const index of segments.keys()) {
+    if (index > 1) {
+      directoryUris.add(segments.slice(0, index + 1).join('/'))
+    }
+  }
+}

apps/mobile/src/mobileExpoVaultStorage.ts

@@ -0,0 +1,208 @@
+import type { MobileVaultConfig } from './mobileVaultConfig'
+import type { MobileVaultFile, MobileVaultStorageDriver } from './mobileVaultStorage'
+
+export type ExpoMobileVaultFileInfo = {
+  exists: boolean
+  isDirectory?: boolean
+  modificationTime?: number
+  size?: number
+}
+
+export type ExpoMobileVaultFileSystem = {
+  deleteAsync: (uri: string, options?: { idempotent?: boolean }) => Promise<void>
+  documentDirectory: string | null
+  getInfoAsync: (uri: string) => Promise<ExpoMobileVaultFileInfo>
+  makeDirectoryAsync: (uri: string, options: { intermediates: true }) => Promise<void>
+  readAsStringAsync: (uri: string, options?: ExpoMobileVaultReadOptions) => Promise<string>
+  readDirectoryAsync: (uri: string) => Promise<string[]>
+  writeAsStringAsync: (uri: string, content: string, options?: ExpoMobileVaultWriteOptions) => Promise<void>
+}
+
+type VaultPathInput = {
+  path: string
+}
+
+export type ExpoMobileVaultReadOptions = {
+  encoding?: 'base64' | 'utf8'
+}
+
+export type ExpoMobileVaultWriteOptions = ExpoMobileVaultReadOptions
+
+type DirectoryListingInput = {
+  fileSystem: ExpoMobileVaultFileSystem
+  rootUri: string
+  directoryPath: string
+}
+
+type DirectoryEntryInput = DirectoryListingInput & {
+  name: string
+}
+
+type VaultFileInput = {
+  fileSystem: ExpoMobileVaultFileSystem
+  rootUri: string
+  path: string
+}
+
+type DirectoryInput = {
+  fileSystem: ExpoMobileVaultFileSystem
+  uri: string
+}
+
+export function createExpoMobileVaultStorage(
+  fileSystem: ExpoMobileVaultFileSystem,
+): MobileVaultStorageDriver {
+  return {
+    deleteMarkdownFile: (vault, path) => deleteMarkdownFile(fileSystem, vault, path),
+    listMarkdownFiles: (vault) => listMarkdownFiles(fileSystem, vault),
+    readMarkdownFile: (vault, path) => readMarkdownFile(fileSystem, vault, path),
+    writeMarkdownFile: (vault, path, content) => writeMarkdownFile(fileSystem, vault, path, content),
+  }
+}
+
+async function deleteMarkdownFile(
+  fileSystem: ExpoMobileVaultFileSystem,
+  vault: MobileVaultConfig,
+  path: string,
+) {
+  const rootUri = vaultRootUri(fileSystem, vault)
+  const safePath = normalizeVaultPath({ path })
+  await fileSystem.deleteAsync(appendUri({ root: rootUri, segments: [safePath] }), { idempotent: true })
+}
+
+async function listMarkdownFiles(
+  fileSystem: ExpoMobileVaultFileSystem,
+  vault: MobileVaultConfig,
+): Promise<MobileVaultFile[]> {
+  const rootUri = await ensureVaultRoot(fileSystem, vault)
+  const paths = await listMarkdownPaths({ fileSystem, rootUri, directoryPath: '' })
+  const files = await Promise.all(paths.map((path) => readVaultFile({ fileSystem, rootUri, path })))
+
+  return files.sort((left, right) => left.path.localeCompare(right.path))
+}
+
+async function readMarkdownFile(
+  fileSystem: ExpoMobileVaultFileSystem,
+  vault: MobileVaultConfig,
+  path: string,
+) {
+  const rootUri = vaultRootUri(fileSystem, vault)
+  const safePath = normalizeVaultPath({ path })
+  const fileUri = appendUri({ root: rootUri, segments: [safePath] })
+  const info = await fileSystem.getInfoAsync(fileUri)
+
+  return info.exists && !info.isDirectory ? fileSystem.readAsStringAsync(fileUri) : null
+}
+
+async function writeMarkdownFile(
+  fileSystem: ExpoMobileVaultFileSystem,
+  vault: MobileVaultConfig,
+  path: string,
+  content: string,
+) {
+  const rootUri = await ensureVaultRoot(fileSystem, vault)
+  const safePath = normalizeVaultPath({ path })
+  await ensureParentDirectory({ fileSystem, rootUri, path: safePath })
+  await fileSystem.writeAsStringAsync(appendUri({ root: rootUri, segments: [safePath] }), content)
+}
+
+async function listMarkdownPaths(input: DirectoryListingInput): Promise<string[]> {
+  const directoryUri = appendUri({ root: input.rootUri, segments: [input.directoryPath] })
+  const names = await input.fileSystem.readDirectoryAsync(directoryUri)
+  const paths = await Promise.all(
+    names.map((name) => listDirectoryEntry({ ...input, name })),
+  )
+
+  return paths.flat()
+}
+
+async function listDirectoryEntry(input: DirectoryEntryInput): Promise<string[]> {
+  if (isUnsafeSegment(input.name)) {
+    return []
+  }
+
+  const path = input.directoryPath ? `${input.directoryPath}/${input.name}` : input.name
+  const info = await input.fileSystem.getInfoAsync(appendUri({ root: input.rootUri, segments: [path] }))
+  if (!info.exists) {
+    return []
+  }
+
+  if (info.isDirectory) {
+    return listMarkdownPaths({ fileSystem: input.fileSystem, rootUri: input.rootUri, directoryPath: path })
+  }
+
+  return path.endsWith('.md') ? [path] : []
+}
+
+async function readVaultFile(input: VaultFileInput): Promise<MobileVaultFile> {
+  return {
+    path: input.path,
+    content: await input.fileSystem.readAsStringAsync(
+      appendUri({ root: input.rootUri, segments: [input.path] }),
+    ),
+  }
+}
+
+async function ensureVaultRoot(fileSystem: ExpoMobileVaultFileSystem, vault: MobileVaultConfig) {
+  const rootUri = vaultRootUri(fileSystem, vault)
+  await ensureDirectory({ fileSystem, uri: rootUri })
+
+  return rootUri
+}
+
+async function ensureParentDirectory(input: VaultFileInput) {
+  const parentPath = input.path.split('/').slice(0, -1).join('/')
+  if (parentPath) {
+    await ensureDirectory({
+      fileSystem: input.fileSystem,
+      uri: appendUri({ root: input.rootUri, segments: [parentPath] }),
+    })
+  }
+}
+
+async function ensureDirectory(input: DirectoryInput) {
+  const info = await input.fileSystem.getInfoAsync(input.uri)
+  if (info.exists && !info.isDirectory) {
+    throw new Error(`Mobile vault path is not a directory: ${input.uri}`)
+  }
+
+  if (!info.exists) {
+    await input.fileSystem.makeDirectoryAsync(input.uri, { intermediates: true })
+  }
+}
+
+function vaultRootUri(fileSystem: ExpoMobileVaultFileSystem, vault: MobileVaultConfig) {
+  if (!fileSystem.documentDirectory) {
+    throw new Error('Expo FileSystem documentDirectory is unavailable')
+  }
+
+  return appendUri({
+    root: fileSystem.documentDirectory,
+    segments: ['vaults', vault.storage.directoryName || vault.id],
+  })
+}
+
+function normalizeVaultPath(input: VaultPathInput) {
+  const path = input.path
+  const segments = path.replaceAll('\\', '/').split('/').filter(Boolean)
+  if (isUnsafeVaultPath({ path, segments })) {
+    throw new Error(`Unsafe mobile vault path: ${path}`)
+  }
+
+  return segments.join('/')
+}
+
+function isUnsafeVaultPath(input: VaultPathInput & { segments: string[] }) {
+  return !input.path.endsWith('.md') || input.segments.length === 0 || input.segments.some(isUnsafeSegment)
+}
+
+function isUnsafeSegment(segment: string) {
+  return segment === '.' || segment === '..' || segment.includes('/')
+}
+
+function appendUri(input: { root: string; segments: string[] }) {
+  const base = input.root.replace(/\/+$/, '')
+  const path = input.segments.filter(Boolean).join('/')
+
+  return path ? `${base}/${path}` : base
+}

apps/mobile/src/mobileGitAuthentication.test.ts

@@ -0,0 +1,87 @@
+import { describe, expect, it } from 'vitest'
+import type { MobileGitCredentialStorage } from './mobileGitCredentialStorage'
+import { authenticateMobileGitSyncPlan } from './mobileGitAuthentication'
+
+describe('authenticateMobileGitSyncPlan', () => {
+  it('ignores plans that do not need authentication', async () => {
+    await expect(authenticateMobileGitSyncPlan({
+      credentialStorage: noopCredentialStorage(),
+      createGitHubOAuthSession: failingSession,
+      now: () => '2026-05-05T12:00:00.000Z',
+      plan: { primaryAction: null, state: 'localOnly' },
+    })).resolves.toEqual({ state: 'ignored' })
+  })
+
+  it('connects GitHub auth-required plans through the OAuth session', async () => {
+    const credentialStorage = memoryCredentialStorage()
+
+    await expect(authenticateMobileGitSyncPlan({
+      credentialStorage,
+      createGitHubOAuthSession: () => ({
+        authorize: async () => ({
+          state: 'succeeded',
+          token: { accessToken: 'token', tokenType: 'bearer' },
+        }),
+      }),
+      now: () => '2026-05-05T12:00:00.000Z',
+      plan: {
+        authStrategy: 'githubOAuth',
+        host: 'github.com',
+        primaryAction: 'authenticate',
+        state: 'authRequired',
+      },
+    })).resolves.toEqual({ state: 'connected' })
+
+    await expect(credentialStorage.loadState({ host: 'github.com', strategy: 'githubOAuth' }))
+      .resolves.toEqual({ state: 'available' })
+  })
+
+  it('fails unsupported SSH authentication without starting OAuth', async () => {
+    await expect(authenticateMobileGitSyncPlan({
+      credentialStorage: noopCredentialStorage(),
+      createGitHubOAuthSession: failingSession,
+      now: () => '2026-05-05T12:00:00.000Z',
+      plan: {
+        authStrategy: 'sshKey',
+        host: 'git.example.com',
+        primaryAction: 'authenticate',
+        state: 'authRequired',
+      },
+    })).resolves.toEqual({
+      message: 'SSH credential setup is not available yet.',
+      state: 'failed',
+    })
+  })
+})
+
+function memoryCredentialStorage(): MobileGitCredentialStorage {
+  let isAvailable = false
+
+  return {
+    loadRecord: async () => null,
+    loadState: async () => isAvailable ? { state: 'available' } : { state: 'missing' },
+    remove: async () => {
+      isAvailable = false
+    },
+    saveRecord: async () => {
+      isAvailable = true
+    },
+  }
+}
+
+function noopCredentialStorage(): MobileGitCredentialStorage {
+  return {
+    loadRecord: async () => null,
+    loadState: async () => ({ state: 'missing' }),
+    remove: async () => {},
+    saveRecord: async () => {},
+  }
+}
+
+function failingSession() {
+  return {
+    authorize: async () => {
+      throw new Error('should not start OAuth')
+    },
+  }
+}

apps/mobile/src/mobileGitAuthentication.ts

@@ -0,0 +1,55 @@
+import type { MobileGitCredentialStorage } from './mobileGitCredentialStorage'
+import type { MobileGitSyncPlan } from './mobileGitSyncPlan'
+import { connectMobileGitHubOAuth, type MobileGitHubOAuthSession } from './mobileGitHubOAuthFlow'
+
+export type MobileGitAuthenticationResult =
+  | {
+      state: 'connected'
+    }
+  | {
+      state: 'cancelled'
+    }
+  | {
+      message: string
+      state: 'failed'
+    }
+  | {
+      state: 'ignored'
+    }
+
+export async function authenticateMobileGitSyncPlan({
+  credentialStorage,
+  createGitHubOAuthSession,
+  now,
+  plan,
+}: {
+  credentialStorage: MobileGitCredentialStorage
+  createGitHubOAuthSession: () => MobileGitHubOAuthSession
+  now: () => string
+  plan: MobileGitSyncPlan
+}): Promise<MobileGitAuthenticationResult> {
+  if (!canAuthenticate(plan)) {
+    return { state: 'ignored' }
+  }
+
+  if (authStrategy(plan) !== 'githubOAuth') {
+    return {
+      message: 'SSH credential setup is not available yet.',
+      state: 'failed',
+    }
+  }
+
+  return connectMobileGitHubOAuth({
+    credentialStorage,
+    now,
+    session: createGitHubOAuthSession(),
+  })
+}
+
+function canAuthenticate(plan: MobileGitSyncPlan) {
+  return plan.state === 'authRequired' || plan.state === 'failed'
+}
+
+function authStrategy(plan: Extract<MobileGitSyncPlan, { state: 'authRequired' | 'failed' }>) {
+  return plan.state === 'authRequired' ? plan.authStrategy : plan.remote.authStrategy
+}

apps/mobile/src/mobileGitCredentialStateForVault.test.ts

@@ -0,0 +1,62 @@
+import { describe, expect, it } from 'vitest'
+import {
+  createMobileGitCredentialRecord,
+  type MobileGitCredentialStorage,
+} from './mobileGitCredentialStorage'
+import { loadMobileGitCredentialStateForVault } from './mobileGitCredentialStateForVault'
+
+describe('loadMobileGitCredentialStateForVault', () => {
+  it('keeps local-only vaults credential-missing without hitting secure storage', async () => {
+    await expect(loadMobileGitCredentialStateForVault({
+      credentialStorage: failingCredentialStorage(),
+      vault: { id: 'personal', name: 'Personal Journal' },
+    })).resolves.toEqual({ state: 'missing' })
+  })
+
+  it('loads credential state for a remote-backed vault auth requirement', async () => {
+    const credentialStorage = memoryCredentialStorage()
+    await credentialStorage.saveRecord(createMobileGitCredentialRecord({
+      requirement: { host: 'github.com', strategy: 'githubOAuth' },
+      storedAt: '2026-05-05T12:00:00.000Z',
+    }))
+
+    await expect(loadMobileGitCredentialStateForVault({
+      credentialStorage,
+      vault: {
+        id: 'tolaria',
+        name: 'Tolaria',
+        remoteUrl: 'https://github.com/refactoringhq/tolaria.git',
+      },
+    })).resolves.toEqual({ state: 'available' })
+  })
+})
+
+function memoryCredentialStorage(): MobileGitCredentialStorage {
+  const records = new Map<string, ReturnType<typeof createMobileGitCredentialRecord>>()
+
+  return {
+    loadRecord: async (requirement) => records.get(`${requirement.strategy}:${requirement.host}`) ?? null,
+    loadState: async (requirement) => records.has(`${requirement.strategy}:${requirement.host}`)
+      ? { state: 'available' }
+      : { state: 'missing' },
+    remove: async (requirement) => {
+      records.delete(`${requirement.strategy}:${requirement.host}`)
+    },
+    saveRecord: async (record) => {
+      records.set(`${record.strategy}:${record.host}`, record)
+    },
+  }
+}
+
+function failingCredentialStorage(): MobileGitCredentialStorage {
+  return {
+    loadRecord: async () => {
+      throw new Error('should not load credentials')
+    },
+    loadState: async () => {
+      throw new Error('should not load credentials')
+    },
+    remove: async () => {},
+    saveRecord: async () => {},
+  }
+}

apps/mobile/src/mobileGitCredentialStateForVault.ts

@@ -0,0 +1,19 @@
+import type { MobileGitCredentialStorage } from './mobileGitCredentialStorage'
+import type { MobileGitCredentialState } from './mobileGitSyncPlan'
+import { createMobileVaultConfig } from './mobileVaultConfig'
+import type { MobileVaultMetadata } from './mobileVaultMetadata'
+
+export async function loadMobileGitCredentialStateForVault({
+  credentialStorage,
+  vault,
+}: {
+  credentialStorage: MobileGitCredentialStorage
+  vault: MobileVaultMetadata
+}): Promise<MobileGitCredentialState> {
+  const result = createMobileVaultConfig(vault)
+  if (!result.ok || result.config.sync.state === 'localOnly') {
+    return { state: 'missing' }
+  }
+
+  return credentialStorage.loadState(result.config.sync.authRequirement)
+}

apps/mobile/src/mobileGitCredentialStorage.test.ts

@@ -0,0 +1,73 @@
+import { describe, expect, it } from 'vitest'
+import {
+  createMobileGitCredentialKey,
+  createMobileGitCredentialRecord,
+  mobileGitCredentialState,
+  parseMobileGitCredentialRecord,
+  serializeMobileGitCredentialRecord,
+} from './mobileGitCredentialStorage'
+import type { MobileVaultAuthRequirement } from './mobileVaultConfig'
+
+describe('mobile Git credential storage model', () => {
+  it('creates stable host-normalized secure storage keys', () => {
+    expect(createMobileGitCredentialKey(githubRequirement(' GitHub.COM '))).toBe(
+      'tolaria:git-credential:githubOAuth:github.com',
+    )
+  })
+
+  it('creates a credential presence record for the required auth strategy', () => {
+    expect(createMobileGitCredentialRecord({
+      requirement: githubRequirement('github.com'),
+      storedAt: '2026-05-05T11:00:00.000Z',
+    })).toEqual({
+      host: 'github.com',
+      kind: 'githubOAuthToken',
+      strategy: 'githubOAuth',
+      storedAt: '2026-05-05T11:00:00.000Z',
+    })
+
+    expect(createMobileGitCredentialRecord({
+      requirement: sshRequirement('git.example.com'),
+      storedAt: '2026-05-05T11:00:00.000Z',
+    })).toMatchObject({
+      kind: 'sshKeyReference',
+      strategy: 'sshKey',
+    })
+  })
+
+  it('loads available state only when the record matches the required host and strategy', () => {
+    const record = createMobileGitCredentialRecord({
+      requirement: githubRequirement('github.com'),
+      storedAt: '2026-05-05T11:00:00.000Z',
+    })
+
+    expect(mobileGitCredentialState({
+      record,
+      requirement: githubRequirement('github.com'),
+    })).toEqual({ state: 'available' })
+
+    expect(mobileGitCredentialState({
+      record,
+      requirement: sshRequirement('github.com'),
+    })).toEqual({ state: 'missing' })
+  })
+
+  it('parses stored records defensively', () => {
+    const record = createMobileGitCredentialRecord({
+      requirement: githubRequirement('github.com'),
+      storedAt: '2026-05-05T11:00:00.000Z',
+    })
+
+    expect(parseMobileGitCredentialRecord(serializeMobileGitCredentialRecord(record))).toEqual(record)
+    expect(parseMobileGitCredentialRecord('{')).toBeNull()
+    expect(parseMobileGitCredentialRecord(JSON.stringify({ host: 'github.com' }))).toBeNull()
+  })
+})
+
+function githubRequirement(host: string): MobileVaultAuthRequirement {
+  return { host, strategy: 'githubOAuth' }
+}
+
+function sshRequirement(host: string): MobileVaultAuthRequirement {
+  return { host, strategy: 'sshKey' }
+}

apps/mobile/src/mobileGitCredentialStorage.ts

@@ -0,0 +1,148 @@
+import type { MobileGitAuthStrategy } from './mobileGitRemote'
+import type { MobileGitCredentialState } from './mobileGitSyncPlan'
+import type { MobileVaultAuthRequirement } from './mobileVaultConfig'
+
+export type MobileGitCredentialKind = 'githubOAuthToken' | 'sshKeyReference'
+
+export type MobileGitCredentialSecret = {
+  accessToken: string
+  scope?: string
+  tokenType: string
+}
+
+export type MobileGitCredentialRecord = {
+  host: string
+  kind: MobileGitCredentialKind
+  secret?: MobileGitCredentialSecret
+  strategy: MobileGitAuthStrategy
+  storedAt: string
+}
+
+export type MobileGitCredentialStorage = {
+  loadRecord: (requirement: MobileVaultAuthRequirement) => Promise<MobileGitCredentialRecord | null>
+  loadState: (requirement: MobileVaultAuthRequirement) => Promise<MobileGitCredentialState>
+  remove: (requirement: MobileVaultAuthRequirement) => Promise<void>
+  saveRecord: (record: MobileGitCredentialRecord) => Promise<void>
+}
+
+export function createMobileGitCredentialRecord({
+  requirement,
+  secret,
+  storedAt,
+}: {
+  requirement: MobileVaultAuthRequirement
+  secret?: MobileGitCredentialSecret
+  storedAt: string
+}): MobileGitCredentialRecord {
+  return {
+    host: normalizeCredentialHost(requirement.host),
+    kind: credentialKind(requirement.strategy),
+    ...(secret ? { secret } : {}),
+    strategy: requirement.strategy,
+    storedAt,
+  }
+}
+
+export function createMobileGitCredentialKey(requirement: MobileVaultAuthRequirement) {
+  return [
+    'tolaria',
+    'git-credential',
+    requirement.strategy,
+    normalizeCredentialHost(requirement.host),
+  ].join(':')
+}
+
+export function parseMobileGitCredentialRecord(content: string | null): MobileGitCredentialRecord | null {
+  if (!content) {
+    return null
+  }
+
+  try {
+    return normalizeMobileGitCredentialRecord(JSON.parse(content))
+  } catch {
+    return null
+  }
+}
+
+export function mobileGitCredentialState({
+  record,
+  requirement,
+}: {
+  record: MobileGitCredentialRecord | null
+  requirement: MobileVaultAuthRequirement
+}): MobileGitCredentialState {
+  return record && matchesRequirement({ record, requirement })
+    ? { state: 'available' }
+    : { state: 'missing' }
+}
+
+export function serializeMobileGitCredentialRecord(record: MobileGitCredentialRecord) {
+  return JSON.stringify(record)
+}
+
+function normalizeMobileGitCredentialRecord(value: unknown): MobileGitCredentialRecord | null {
+  if (!isCredentialRecord(value)) {
+    return null
+  }
+
+  return {
+    host: normalizeCredentialHost(value.host),
+    kind: value.kind,
+    ...(isCredentialSecret(value.secret) ? { secret: value.secret } : {}),
+    strategy: value.strategy,
+    storedAt: value.storedAt,
+  }
+}
+
+function matchesRequirement({
+  record,
+  requirement,
+}: {
+  record: MobileGitCredentialRecord
+  requirement: MobileVaultAuthRequirement
+}) {
+  return record.strategy === requirement.strategy
+    && record.host === normalizeCredentialHost(requirement.host)
+    && record.kind === credentialKind(requirement.strategy)
+}
+
+function credentialKind(strategy: MobileGitAuthStrategy): MobileGitCredentialKind {
+  return strategy === 'githubOAuth' ? 'githubOAuthToken' : 'sshKeyReference'
+}
+
+function normalizeCredentialHost(host: string) {
+  return host.trim().toLowerCase()
+}
+
+function isCredentialRecord(value: unknown): value is MobileGitCredentialRecord {
+  return typeof value === 'object'
+    && value !== null
+    && hasText((value as MobileGitCredentialRecord).host)
+    && isCredentialKind((value as MobileGitCredentialRecord).kind)
+    && isCredentialStrategy((value as MobileGitCredentialRecord).strategy)
+    && hasText((value as MobileGitCredentialRecord).storedAt)
+}
+
+function hasText(value: unknown): value is string {
+  return typeof value === 'string' && value.trim().length > 0
+}
+
+function isCredentialKind(value: unknown): value is MobileGitCredentialKind {
+  return value === 'githubOAuthToken' || value === 'sshKeyReference'
+}
+
+function isCredentialStrategy(value: unknown): value is MobileGitAuthStrategy {
+  return value === 'githubOAuth' || value === 'sshKey'
+}
+
+function isCredentialSecret(value: unknown): value is MobileGitCredentialSecret {
+  return typeof value === 'object'
+    && value !== null
+    && hasText((value as MobileGitCredentialSecret).accessToken)
+    && hasText((value as MobileGitCredentialSecret).tokenType)
+    && isOptionalText((value as MobileGitCredentialSecret).scope)
+}
+
+function isOptionalText(value: unknown): value is string | undefined {
+  return value === undefined || hasText(value)
+}

apps/mobile/src/mobileGitHubOAuth.test.ts

@@ -0,0 +1,62 @@
+import { describe, expect, it } from 'vitest'
+import {
+  createMobileGitHubOAuthRequest,
+  normalizeMobileGitHubAuthorizationResult,
+} from './mobileGitHubOAuth'
+
+describe('createMobileGitHubOAuthRequest', () => {
+  it('builds a PKCE authorization-code request for GitHub OAuth', () => {
+    expect(createMobileGitHubOAuthRequest({
+      clientId: ' abc123 ',
+      redirectUri: ' tolaria://oauth/github ',
+    })).toEqual({
+      ok: true,
+      request: {
+        clientId: 'abc123',
+        extraParams: { allow_signup: 'true' },
+        redirectUri: 'tolaria://oauth/github',
+        responseType: 'code',
+        scopes: ['repo'],
+        usePKCE: true,
+      },
+    })
+  })
+
+  it.each([
+    { clientId: '', error: 'missingClientId', redirectUri: 'tolaria://oauth/github' },
+    { clientId: 'abc123', error: 'missingRedirectUri', redirectUri: '' },
+  ] as const)('rejects $error', ({ clientId, error, redirectUri }) => {
+    expect(createMobileGitHubOAuthRequest({ clientId, redirectUri })).toEqual({
+      error,
+      ok: false,
+    })
+  })
+})
+
+describe('normalizeMobileGitHubAuthorizationResult', () => {
+  it('extracts the temporary authorization code', () => {
+    expect(normalizeMobileGitHubAuthorizationResult({
+      params: { code: 'temporary-code' },
+      type: 'success',
+    })).toEqual({
+      code: 'temporary-code',
+      state: 'authorized',
+    })
+  })
+
+  it('keeps user cancellation separate from auth failure', () => {
+    expect(normalizeMobileGitHubAuthorizationResult({ type: 'cancel' })).toEqual({
+      state: 'cancelled',
+    })
+  })
+
+  it('normalizes provider errors without exposing raw result objects', () => {
+    expect(normalizeMobileGitHubAuthorizationResult({
+      params: { error: 'access_denied' },
+      type: 'error',
+    })).toEqual({
+      message: 'access_denied',
+      state: 'failed',
+    })
+  })
+})

apps/mobile/src/mobileGitHubOAuth.ts

@@ -0,0 +1,98 @@
+export const mobileGitHubOAuthDiscovery = {
+  authorizationEndpoint: 'https://github.com/login/oauth/authorize',
+  tokenEndpoint: 'https://github.com/login/oauth/access_token',
+}
+
+export const defaultMobileGitHubOAuthScopes = ['repo']
+
+export type MobileGitHubOAuthRequestConfig = {
+  clientId: string
+  extraParams: Record<string, string>
+  redirectUri: string
+  responseType: 'code'
+  scopes: string[]
+  usePKCE: true
+}
+
+export type CreateMobileGitHubOAuthRequestResult =
+  | {
+      ok: true
+      request: MobileGitHubOAuthRequestConfig
+    }
+  | {
+      ok: false
+      error: 'missingClientId' | 'missingRedirectUri'
+    }
+
+export type MobileGitHubAuthorizationResult =
+  | {
+      code: string
+      state: 'authorized'
+    }
+  | {
+      state: 'cancelled'
+    }
+  | {
+      message: string
+      state: 'failed'
+    }
+
+export function createMobileGitHubOAuthRequest({
+  clientId,
+  redirectUri,
+  scopes = defaultMobileGitHubOAuthScopes,
+}: {
+  clientId: string
+  redirectUri: string
+  scopes?: string[]
+}): CreateMobileGitHubOAuthRequestResult {
+  if (!clientId.trim()) {
+    return { error: 'missingClientId', ok: false }
+  }
+
+  if (!redirectUri.trim()) {
+    return { error: 'missingRedirectUri', ok: false }
+  }
+
+  return {
+    ok: true,
+    request: {
+      clientId: clientId.trim(),
+      extraParams: { allow_signup: 'true' },
+      redirectUri: redirectUri.trim(),
+      responseType: 'code',
+      scopes,
+      usePKCE: true,
+    },
+  }
+}
+
+export function normalizeMobileGitHubAuthorizationResult(result: {
+  error?: { message?: string } | null
+  params?: Record<string, string>
+  type: string
+}): MobileGitHubAuthorizationResult {
+  if (result.type === 'success' && result.params?.code) {
+    return { code: result.params.code, state: 'authorized' }
+  }
+
+  if (['cancel', 'dismiss'].includes(result.type)) {
+    return { state: 'cancelled' }
+  }
+
+  return {
+    message: oauthFailureMessage(result),
+    state: 'failed',
+  }
+}
+
+function oauthFailureMessage(result: {
+  error?: { message?: string } | null
+  params?: Record<string, string>
+  type: string
+}) {
+  return result.error?.message
+    ?? result.params?.error_description
+    ?? result.params?.error
+    ?? `GitHub OAuth ended with ${result.type}.`
+}

apps/mobile/src/mobileGitHubOAuthClientId.ts

@@ -0,0 +1,15 @@
+export type MobileGitHubOAuthClientIdState =
+  | {
+      clientId: string
+      state: 'configured'
+    }
+  | {
+      state: 'missing'
+    }
+
+export function mobileGitHubOAuthClientIdState(
+  env: Record<string, string | undefined> | undefined,
+): MobileGitHubOAuthClientIdState {
+  const clientId = env?.EXPO_PUBLIC_GITHUB_OAUTH_CLIENT_ID?.trim()
+  return clientId ? { clientId, state: 'configured' } : { state: 'missing' }
+}

apps/mobile/src/mobileGitHubOAuthEnvironment.test.ts

@@ -0,0 +1,20 @@
+import { describe, expect, it } from 'vitest'
+import { mobileGitHubOAuthClientIdState } from './mobileGitHubOAuthClientId'
+
+describe('mobileGitHubOAuthClientIdState', () => {
+  it('detects a configured Expo public GitHub OAuth client id', () => {
+    expect(mobileGitHubOAuthClientIdState({
+      EXPO_PUBLIC_GITHUB_OAUTH_CLIENT_ID: ' abc123 ',
+    })).toEqual({
+      clientId: 'abc123',
+      state: 'configured',
+    })
+  })
+
+  it('reports a missing client id when the env value is absent or blank', () => {
+    expect(mobileGitHubOAuthClientIdState({})).toEqual({ state: 'missing' })
+    expect(mobileGitHubOAuthClientIdState({
+      EXPO_PUBLIC_GITHUB_OAUTH_CLIENT_ID: ' ',
+    })).toEqual({ state: 'missing' })
+  })
+})

apps/mobile/src/mobileGitHubOAuthEnvironment.ts

@@ -0,0 +1,26 @@
+import { createNativeMobileGitHubOAuthSession } from './mobileNativeGitHubOAuthSession'
+import {
+  mobileGitHubOAuthClientIdState,
+  type MobileGitHubOAuthClientIdState,
+} from './mobileGitHubOAuthClientId'
+import type { MobileGitHubOAuthSession } from './mobileGitHubOAuthFlow'
+
+declare const process: { env?: Record<string, string | undefined> } | undefined
+
+export function createNativeMobileGitHubOAuthSessionFromEnvironment(): MobileGitHubOAuthSession {
+  const clientIdState = currentMobileGitHubOAuthClientIdState()
+  if (clientIdState.state === 'missing') {
+    return {
+      authorize: async () => ({
+        message: 'GitHub OAuth client ID is not configured.',
+        state: 'failed',
+      }),
+    }
+  }
+
+  return createNativeMobileGitHubOAuthSession({ clientId: clientIdState.clientId })
+}
+
+export function currentMobileGitHubOAuthClientIdState(): MobileGitHubOAuthClientIdState {
+  return mobileGitHubOAuthClientIdState(process?.env)
+}

apps/mobile/src/mobileGitHubOAuthFlow.test.ts

@@ -0,0 +1,65 @@
+import { describe, expect, it } from 'vitest'
+import {
+  connectMobileGitHubOAuth,
+  type MobileGitHubOAuthSession,
+} from './mobileGitHubOAuthFlow'
+import { createMobileSecureGitCredentialStorage } from './mobileSecureGitCredentialStorage'
+import type { MobileSecureStore } from './mobileSecureGitCredentialStorage'
+
+describe('connectMobileGitHubOAuth', () => {
+  it('stores a GitHub credential record after successful OAuth', async () => {
+    const secureStore = createMemorySecureStore()
+    const storage = createMobileSecureGitCredentialStorage(secureStore)
+
+    await expect(connectMobileGitHubOAuth({
+      credentialStorage: storage,
+      now: () => '2026-05-05T12:00:00.000Z',
+      session: successfulSession(),
+    })).resolves.toEqual({ state: 'connected' })
+
+    await expect(secureStore.getItemAsync('tolaria:git-credential:githubOAuth:github.com'))
+      .resolves.toContain('"accessToken":"github-token"')
+    await expect(storage.loadState({ host: 'github.com', strategy: 'githubOAuth' }))
+      .resolves.toEqual({ state: 'available' })
+  })
+
+  it('does not store credentials when the user cancels', async () => {
+    const secureStore = createMemorySecureStore()
+
+    await expect(connectMobileGitHubOAuth({
+      credentialStorage: createMobileSecureGitCredentialStorage(secureStore),
+      now: () => '2026-05-05T12:00:00.000Z',
+      session: { authorize: async () => ({ state: 'cancelled' }) },
+    })).resolves.toEqual({ state: 'cancelled' })
+
+    await expect(secureStore.getItemAsync('tolaria:git-credential:githubOAuth:github.com'))
+      .resolves.toBeNull()
+  })
+})
+
+function successfulSession(): MobileGitHubOAuthSession {
+  return {
+    authorize: async () => ({
+      state: 'succeeded',
+      token: {
+        accessToken: 'github-token',
+        scope: 'repo',
+        tokenType: 'bearer',
+      },
+    }),
+  }
+}
+
+function createMemorySecureStore(): MobileSecureStore {
+  const values = new Map<string, string>()
+
+  return {
+    deleteItemAsync: async (key) => {
+      values.delete(key)
+    },
+    getItemAsync: async (key) => values.get(key) ?? null,
+    setItemAsync: async (key, value) => {
+      values.set(key, value)
+    },
+  }
+}

apps/mobile/src/mobileGitHubOAuthFlow.ts

@@ -0,0 +1,68 @@
+import {
+  createMobileGitCredentialRecord,
+  type MobileGitCredentialStorage,
+} from './mobileGitCredentialStorage'
+import type { MobileVaultAuthRequirement } from './mobileVaultConfig'
+
+export type MobileGitHubOAuthToken = {
+  accessToken: string
+  scope?: string
+  tokenType: string
+}
+
+export type MobileGitHubOAuthSessionResult =
+  | {
+      state: 'succeeded'
+      token: MobileGitHubOAuthToken
+    }
+  | {
+      state: 'cancelled'
+    }
+  | {
+      message: string
+      state: 'failed'
+    }
+
+export type MobileGitHubOAuthSession = {
+  authorize: () => Promise<MobileGitHubOAuthSessionResult>
+}
+
+export type ConnectMobileGitHubOAuthResult =
+  | {
+      state: 'connected'
+    }
+  | {
+      state: 'cancelled'
+    }
+  | {
+      message: string
+      state: 'failed'
+    }
+
+export async function connectMobileGitHubOAuth({
+  credentialStorage,
+  now,
+  session,
+}: {
+  credentialStorage: MobileGitCredentialStorage
+  now: () => string
+  session: MobileGitHubOAuthSession
+}): Promise<ConnectMobileGitHubOAuthResult> {
+  const result = await session.authorize()
+
+  if (result.state !== 'succeeded') {
+    return result
+  }
+
+  await credentialStorage.saveRecord(createMobileGitCredentialRecord({
+    requirement: githubRequirement(),
+    secret: result.token,
+    storedAt: now(),
+  }))
+
+  return { state: 'connected' }
+}
+
+export function githubRequirement(): MobileVaultAuthRequirement {
+  return { host: 'github.com', strategy: 'githubOAuth' }
+}

apps/mobile/src/mobileGitPrimaryAction.test.ts

@@ -0,0 +1,70 @@
+import { describe, expect, it } from 'vitest'
+import { mobileGitPrimaryActionForPlan } from './mobileGitPrimaryAction'
+import type { MobileGitRemote } from './mobileGitRemote'
+
+describe('mobile git primary action', () => {
+  it('routes missing credentials to authentication', () => {
+    expect(mobileGitPrimaryActionForPlan({
+      authStrategy: 'githubOAuth',
+      host: 'github.com',
+      primaryAction: 'authenticate',
+      state: 'authRequired',
+    })).toEqual({ state: 'authenticate' })
+  })
+
+  it('routes ready pull and push states to transport execution', () => {
+    expect(mobileGitPrimaryActionForPlan({
+      canPull: true,
+      canPush: false,
+      primaryAction: 'pull',
+      remote: remote(),
+      state: 'ready',
+    })).toMatchObject({ operation: 'pull', state: 'transport' })
+
+    expect(mobileGitPrimaryActionForPlan({
+      canPull: true,
+      canPush: true,
+      primaryAction: 'push',
+      remote: remote(),
+      state: 'ready',
+    })).toMatchObject({ operation: 'push', state: 'transport' })
+  })
+
+  it('retries clone failures through authentication and sync failures through transport', () => {
+    expect(mobileGitPrimaryActionForPlan({
+      message: 'GitHub authentication failed.',
+      operation: 'clone',
+      primaryAction: 'retry',
+      remote: remote(),
+      state: 'failed',
+    })).toEqual({ state: 'authenticate' })
+
+    expect(mobileGitPrimaryActionForPlan({
+      message: 'Pull failed.',
+      operation: 'pull',
+      primaryAction: 'retry',
+      remote: remote(),
+      state: 'failed',
+    })).toMatchObject({ operation: 'pull', state: 'transport' })
+  })
+
+  it('ignores local-only and already syncing plans', () => {
+    expect(mobileGitPrimaryActionForPlan({ primaryAction: null, state: 'localOnly' })).toEqual({ state: 'ignored' })
+    expect(mobileGitPrimaryActionForPlan({
+      operation: 'pull',
+      primaryAction: null,
+      remote: remote(),
+      state: 'syncing',
+    })).toEqual({ state: 'ignored' })
+  })
+})
+
+function remote(): MobileGitRemote {
+  return {
+    authStrategy: 'githubOAuth',
+    host: 'github.com',
+    owner: 'refactoringhq',
+    repository: 'tolaria',
+    url: 'https://github.com/refactoringhq/tolaria.git',
+  }
+}

apps/mobile/src/mobileGitPrimaryAction.ts

@@ -0,0 +1,52 @@
+import type { MobileGitOperation, MobileGitSyncPlan } from './mobileGitSyncPlan'
+import type { MobileGitRemote } from './mobileGitRemote'
+
+export type MobileGitTransportOperation = Exclude<MobileGitOperation, 'clone'>
+
+export type MobileGitPrimaryAction =
+  | {
+      state: 'authenticate'
+    }
+  | {
+      operation: MobileGitTransportOperation
+      remote: MobileGitRemote
+      state: 'transport'
+    }
+  | {
+      state: 'ignored'
+    }
+
+export function mobileGitPrimaryActionForPlan(plan: MobileGitSyncPlan): MobileGitPrimaryAction {
+  if (plan.state === 'authRequired') {
+    return { state: 'authenticate' }
+  }
+
+  if (plan.state === 'ready') {
+    return transportAction({
+      operation: plan.primaryAction,
+      remote: plan.remote,
+    })
+  }
+
+  if (plan.state === 'failed') {
+    return plan.operation === 'clone'
+      ? { state: 'authenticate' }
+      : transportAction({ operation: plan.operation, remote: plan.remote })
+  }
+
+  return { state: 'ignored' }
+}
+
+function transportAction({
+  operation,
+  remote,
+}: {
+  operation: MobileGitTransportOperation
+  remote: MobileGitRemote
+}): MobileGitPrimaryAction {
+  return {
+    operation,
+    remote,
+    state: 'transport',
+  }
+}

apps/mobile/src/mobileGitRemote.test.ts

@@ -0,0 +1,46 @@
+import { describe, expect, it } from 'vitest'
+import { parseMobileGitRemote } from './mobileGitRemote'
+
+describe('mobile git remote parsing', () => {
+  it('uses GitHub OAuth for GitHub HTTPS remotes', () => {
+    expect(parseMobileGitRemote('https://github.com/refactoringhq/tolaria.git')).toEqual({
+      url: 'https://github.com/refactoringhq/tolaria.git',
+      host: 'github.com',
+      owner: 'refactoringhq',
+      repository: 'tolaria',
+      authStrategy: 'githubOAuth',
+    })
+  })
+
+  it('uses GitHub OAuth for GitHub SSH shorthand remotes', () => {
+    expect(parseMobileGitRemote('git@github.com:refactoringhq/tolaria.git')).toMatchObject({
+      host: 'github.com',
+      owner: 'refactoringhq',
+      repository: 'tolaria',
+      authStrategy: 'githubOAuth',
+    })
+  })
+
+  it('uses SSH keys for non-GitHub SSH remotes', () => {
+    expect(parseMobileGitRemote('ssh://git@git.example.com/acme/notes.git')).toMatchObject({
+      host: 'git.example.com',
+      owner: 'acme',
+      repository: 'notes',
+      authStrategy: 'sshKey',
+    })
+  })
+
+  it('uses SSH keys for non-GitHub HTTPS remotes', () => {
+    expect(parseMobileGitRemote('https://gitlab.com/acme/notes.git')).toMatchObject({
+      host: 'gitlab.com',
+      owner: 'acme',
+      repository: 'notes',
+      authStrategy: 'sshKey',
+    })
+  })
+
+  it('rejects non-remote input', () => {
+    expect(parseMobileGitRemote('/Users/luca/Laputa')).toBeNull()
+    expect(parseMobileGitRemote('')).toBeNull()
+  })
+})

apps/mobile/src/mobileGitRemote.ts

@@ -0,0 +1,71 @@
+export type MobileGitAuthStrategy = 'githubOAuth' | 'sshKey'
+
+export type MobileGitRemote = {
+  url: string
+  host: string
+  owner: string
+  repository: string
+  authStrategy: MobileGitAuthStrategy
+}
+
+export function parseMobileGitRemote(url: string): MobileGitRemote | null {
+  const normalizedUrl = url.trim()
+  return parseHttpRemote(normalizedUrl) ?? parseScpRemote(normalizedUrl) ?? parseSshRemote(normalizedUrl)
+}
+
+function parseHttpRemote(url: string): MobileGitRemote | null {
+  const parsedUrl = parseUrl(url)
+  if (!parsedUrl || !['http:', 'https:'].includes(parsedUrl.protocol)) {
+    return null
+  }
+
+  return createRemote(url, parsedUrl.hostname, pathParts(parsedUrl.pathname))
+}
+
+function parseSshRemote(url: string): MobileGitRemote | null {
+  const parsedUrl = parseUrl(url)
+  if (!parsedUrl || parsedUrl.protocol !== 'ssh:') {
+    return null
+  }
+
+  return createRemote(url, parsedUrl.hostname, pathParts(parsedUrl.pathname))
+}
+
+function parseScpRemote(url: string): MobileGitRemote | null {
+  const match = /^git@([^:]+):([^/]+)\/(.+)$/.exec(url)
+  if (!match) {
+    return null
+  }
+
+  return createRemote(url, match[1], [match[2], stripGitSuffix(match[3])])
+}
+
+function createRemote(url: string, host: string, parts: string[]): MobileGitRemote | null {
+  if (parts.length < 2) {
+    return null
+  }
+
+  return {
+    url,
+    host,
+    owner: parts[0],
+    repository: stripGitSuffix(parts[1]),
+    authStrategy: host === 'github.com' ? 'githubOAuth' : 'sshKey',
+  }
+}
+
+function parseUrl(url: string) {
+  try {
+    return new URL(url)
+  } catch {
+    return null
+  }
+}
+
+function pathParts(pathname: string) {
+  return pathname.split('/').filter(Boolean)
+}
+
+function stripGitSuffix(value: string) {
+  return value.endsWith('.git') ? value.slice(0, -4) : value
+}

apps/mobile/src/mobileGitSyncFlowAction.test.ts

@@ -0,0 +1,100 @@
+import { describe, expect, it } from 'vitest'
+import { runMobileGitSyncFlowAction, type MobileGitSyncFlowFailure } from './mobileGitSyncFlowAction'
+import type { MobileGitOperation, MobileGitSyncPlan } from './mobileGitSyncPlan'
+import type { MobileGitRemote } from './mobileGitRemote'
+
+describe('mobile git sync flow action', () => {
+  it('ignores actions while another operation is active', () => {
+    const events: string[] = []
+
+    runMobileGitSyncFlowAction({
+      ...baseActionInput(events),
+      activeOperation: 'pull',
+    })
+
+    expect(events).toEqual([])
+  })
+
+  it('runs ready pull and records transport failures', async () => {
+    const events: string[] = []
+    const failures: Array<MobileGitSyncFlowFailure | null> = []
+
+    runMobileGitSyncFlowAction({
+      ...baseActionInput(events),
+      gitSyncPlan: readyPlan(),
+      gitTransport: {
+        pull: async () => ({ message: 'Pull failed.', state: 'failed' }),
+        push: async () => ({ state: 'completed' }),
+      },
+      setFailure: (failure) => failures.push(failure),
+    })
+    await Promise.resolve()
+
+    expect(events).toEqual(['active:pull'])
+    expect(failures).toEqual([null, { message: 'Pull failed.', operation: 'pull' }])
+  })
+
+  it('routes auth-required plans to the authentication operation', () => {
+    const events: string[] = []
+
+    runMobileGitSyncFlowAction({
+      ...baseActionInput(events),
+      gitSyncPlan: {
+        authStrategy: 'githubOAuth',
+        host: 'github.com',
+        primaryAction: 'authenticate',
+        state: 'authRequired',
+      },
+    })
+
+    expect(events).toEqual(['active:clone'])
+  })
+})
+
+function baseActionInput(events: string[]) {
+  return {
+    activeOperation: null,
+    credentialStorage: {
+      loadRecord: async () => null,
+      loadState: async () => ({ state: 'missing' as const }),
+      remove: async () => {},
+      saveRecord: async () => {},
+    },
+    createGitHubOAuthSession: () => ({
+      authorize: async () => ({ state: 'cancelled' as const }),
+    }),
+    gitSyncPlan: { primaryAction: null, state: 'localOnly' } satisfies MobileGitSyncPlan,
+    gitTransport: {
+      pull: async () => ({ state: 'completed' as const }),
+      push: async () => ({ state: 'completed' as const }),
+    },
+    refreshCredentials: () => events.push('refresh'),
+    setActiveOperation: (operation: MobileGitOperation | null) => {
+      if (operation) {
+        events.push(`active:${operation}`)
+      }
+    },
+    setFailure: () => {},
+    vault: { id: 'personal', name: 'Personal Journal' },
+  }
+}
+
+function readyPlan(): MobileGitSyncPlan {
+  return {
+    canPull: true,
+    canPush: false,
+    primaryAction: 'pull',
+    remote: remote(),
+    state: 'ready',
+  }
+}
+
+function remote(): MobileGitRemote {
+  return {
+    authStrategy: 'githubOAuth',
+    host: 'github.com',
+    owner: 'refactoringhq',
+    repository: 'tolaria',
+    url: 'https://github.com/refactoringhq/tolaria.git',
+  }
+}

apps/mobile/src/mobileGitSyncFlowAction.ts

@@ -0,0 +1,142 @@
+import { authenticateMobileGitSyncPlan } from './mobileGitAuthentication'
+import type { MobileGitHubOAuthSession } from './mobileGitHubOAuthFlow'
+import { mobileGitPrimaryActionForPlan } from './mobileGitPrimaryAction'
+import type { MobileGitCredentialStorage } from './mobileGitCredentialStorage'
+import type { MobileGitOperation, MobileGitSyncPlan } from './mobileGitSyncPlan'
+import {
+  runMobileGitTransportOperation,
+  type MobileGitTransport,
+} from './mobileGitTransport'
+import type { MobileVaultMetadata } from './mobileVaultMetadata'
+
+export type MobileGitSyncFlowFailure = {
+  message: string
+  operation: MobileGitOperation
+}
+
+export function runMobileGitSyncFlowAction({
+  activeOperation,
+  credentialStorage,
+  createGitHubOAuthSession,
+  gitSyncPlan,
+  gitTransport,
+  onSynced,
+  refreshCredentials,
+  setActiveOperation,
+  setFailure,
+  vault,
+}: {
+  activeOperation: MobileGitOperation | null
+  credentialStorage: MobileGitCredentialStorage
+  createGitHubOAuthSession: () => MobileGitHubOAuthSession
+  gitSyncPlan: MobileGitSyncPlan
+  gitTransport: MobileGitTransport
+  onSynced?: () => void
+  refreshCredentials: () => void
+  setActiveOperation: (operation: MobileGitOperation | null) => void
+  setFailure: (failure: MobileGitSyncFlowFailure | null) => void
+  vault: MobileVaultMetadata
+}) {
+  if (activeOperation) {
+    return
+  }
+
+  const action = mobileGitPrimaryActionForPlan(gitSyncPlan)
+  if (action.state === 'authenticate') {
+    runAuthenticationAction({
+      credentialStorage,
+      createGitHubOAuthSession,
+      gitSyncPlan,
+      refreshCredentials,
+      setActiveOperation,
+      setFailure,
+    })
+    return
+  }
+
+  if (action.state === 'transport') {
+    runTransportAction({
+      gitTransport,
+      onSynced,
+      operation: action.operation,
+      remote: action.remote,
+      setActiveOperation,
+      setFailure,
+      vault,
+    })
+  }
+}
+
+function runAuthenticationAction({
+  credentialStorage,
+  createGitHubOAuthSession,
+  gitSyncPlan,
+  refreshCredentials,
+  setActiveOperation,
+  setFailure,
+}: {
+  credentialStorage: MobileGitCredentialStorage
+  createGitHubOAuthSession: () => MobileGitHubOAuthSession
+  gitSyncPlan: MobileGitSyncPlan
+  refreshCredentials: () => void
+  setActiveOperation: (operation: MobileGitOperation | null) => void
+  setFailure: (failure: MobileGitSyncFlowFailure | null) => void
+}) {
+  setFailure(null)
+  setActiveOperation('clone')
+  void authenticateMobileGitSyncPlan({
+    credentialStorage,
+    createGitHubOAuthSession,
+    now: () => new Date().toISOString(),
+    plan: gitSyncPlan,
+  })
+    .then((result) => {
+      if (result.state === 'connected') {
+        refreshCredentials()
+        return
+      }
+
+      if (result.state === 'failed') {
+        setFailure({ message: result.message, operation: 'clone' })
+      }
+    })
+    .catch(() => setFailure({ message: 'GitHub authentication failed.', operation: 'clone' }))
+    .finally(() => setActiveOperation(null))
+}
+
+function runTransportAction({
+  gitTransport,
+  onSynced,
+  operation,
+  remote,
+  setActiveOperation,
+  setFailure,
+  vault,
+}: {
+  gitTransport: MobileGitTransport
+  onSynced?: () => void
+  operation: 'pull' | 'push'
+  remote: Parameters<typeof runMobileGitTransportOperation>[0]['remote']
+  setActiveOperation: (operation: MobileGitOperation | null) => void
+  setFailure: (failure: MobileGitSyncFlowFailure | null) => void
+  vault: MobileVaultMetadata
+}) {
+  setFailure(null)
+  setActiveOperation(operation)
+  void runMobileGitTransportOperation({
+    operation,
+    remote,
+    transport: gitTransport,
+    vault,
+  })
+    .then((result) => {
+      if (result.state === 'failed') {
+        setFailure({ message: result.message, operation })
+        return
+      }
+
+      onSynced?.()
+    })
+    .catch(() => setFailure({ message: 'Mobile Git sync failed.', operation }))
+    .finally(() => setActiveOperation(null))
+}

apps/mobile/src/mobileGitSyncPlan.test.ts

@@ -0,0 +1,88 @@
+import { describe, expect, it } from 'vitest'
+import { createMobileVaultConfig, type MobileVaultConfig } from './mobileVaultConfig'
+import { createMobileGitSyncPlan } from './mobileGitSyncPlan'
+
+describe('createMobileGitSyncPlan', () => {
+  it('keeps local-only vaults out of the sync/auth flow', () => {
+    expect(createMobileGitSyncPlan({
+      credentials: { state: 'missing' },
+      sync: vaultConfig().sync,
+    })).toEqual({
+      state: 'localOnly',
+      primaryAction: null,
+    })
+  })
+
+  it('requires the configured auth strategy before remote sync', () => {
+    expect(createMobileGitSyncPlan({
+      credentials: { state: 'missing' },
+      sync: githubVaultConfig().sync,
+    })).toMatchObject({
+      state: 'authRequired',
+      authStrategy: 'githubOAuth',
+      host: 'github.com',
+      primaryAction: 'authenticate',
+    })
+  })
+
+  it.each([
+    { hasLocalChanges: false, canPush: false, primaryAction: 'pull' },
+    { hasLocalChanges: true, canPush: true, primaryAction: 'push' },
+  ] as const)('plans $primaryAction as the ready sync action', ({ canPush, hasLocalChanges, primaryAction }) => {
+    expect(createMobileGitSyncPlan({
+      credentials: { state: 'available' },
+      hasLocalChanges,
+      sync: githubVaultConfig().sync,
+    })).toMatchObject({
+      state: 'ready',
+      canPull: true,
+      canPush,
+      primaryAction,
+    })
+  })
+
+  it('surfaces active and failed operations around the same remote', () => {
+    const sync = githubVaultConfig().sync
+
+    expect(createMobileGitSyncPlan({
+      credentials: { state: 'available' },
+      operation: 'pull',
+      sync,
+    })).toMatchObject({
+      state: 'syncing',
+      operation: 'pull',
+      primaryAction: null,
+    })
+
+    expect(createMobileGitSyncPlan({
+      credentials: { state: 'available' },
+      failure: { message: 'Authentication failed', operation: 'push' },
+      sync,
+    })).toMatchObject({
+      state: 'failed',
+      message: 'Authentication failed',
+      operation: 'push',
+      primaryAction: 'retry',
+    })
+  })
+})
+
+function vaultConfig(): MobileVaultConfig {
+  return resultConfig(createMobileVaultConfig({ id: 'local', name: 'Local' }))
+}
+
+function githubVaultConfig(): MobileVaultConfig {
+  return resultConfig(createMobileVaultConfig({
+    id: 'tolaria',
+    name: 'Tolaria',
+    remoteUrl: 'https://github.com/refactoringhq/tolaria.git',
+  }))
+}
+
+function resultConfig(result: ReturnType<typeof createMobileVaultConfig>): MobileVaultConfig {
+  if (!result.ok) {
+    throw new Error(result.error)
+  }
+
+  return result.config
+}

apps/mobile/src/mobileGitSyncPlan.ts

@@ -0,0 +1,118 @@
+import type { MobileGitAuthStrategy, MobileGitRemote } from './mobileGitRemote'
+import type { MobileVaultSync } from './mobileVaultConfig'
+
+export type MobileGitCredentialState =
+  | {
+      state: 'missing'
+    }
+  | {
+      state: 'available'
+    }
+
+export type MobileGitOperation = 'clone' | 'pull' | 'push'
+
+export type MobileGitSyncPlan =
+  | {
+      state: 'localOnly'
+      primaryAction: null
+    }
+  | {
+      state: 'authRequired'
+      authStrategy: MobileGitAuthStrategy
+      host: string
+      primaryAction: 'authenticate'
+    }
+  | {
+      state: 'ready'
+      canPull: true
+      canPush: boolean
+      primaryAction: 'pull' | 'push'
+      remote: MobileGitRemote
+    }
+  | {
+      state: 'syncing'
+      operation: MobileGitOperation
+      primaryAction: null
+      remote: MobileGitRemote
+    }
+  | {
+      state: 'failed'
+      message: string
+      operation: MobileGitOperation
+      primaryAction: 'retry'
+      remote: MobileGitRemote
+    }
+
+export function createMobileGitSyncPlan({
+  credentials,
+  failure,
+  hasLocalChanges = false,
+  operation,
+  sync,
+}: {
+  credentials: MobileGitCredentialState
+  failure?: { message: string; operation: MobileGitOperation }
+  hasLocalChanges?: boolean
+  operation?: MobileGitOperation
+  sync: MobileVaultSync
+}): MobileGitSyncPlan {
+  if (sync.state === 'localOnly') {
+    return { state: 'localOnly', primaryAction: null }
+  }
+
+  if (failure) {
+    return failedPlan({ failure, remote: sync.remote })
+  }
+
+  if (operation) {
+    return {
+      state: 'syncing',
+      operation,
+      primaryAction: null,
+      remote: sync.remote,
+    }
+  }
+
+  if (credentials.state === 'missing') {
+    return {
+      state: 'authRequired',
+      authStrategy: sync.authRequirement.strategy,
+      host: sync.authRequirement.host,
+      primaryAction: 'authenticate',
+    }
+  }
+
+  return readyPlan({ hasLocalChanges, remote: sync.remote })
+}
+
+function readyPlan({
+  hasLocalChanges,
+  remote,
+}: {
+  hasLocalChanges: boolean
+  remote: MobileGitRemote
+}): MobileGitSyncPlan {
+  return {
+    state: 'ready',
+    canPull: true,
+    canPush: hasLocalChanges,
+    primaryAction: hasLocalChanges ? 'push' : 'pull',
+    remote,
+  }
+}
+
+function failedPlan({
+  failure,
+  remote,
+}: {
+  failure: { message: string; operation: MobileGitOperation }
+  remote: MobileGitRemote
+}): MobileGitSyncPlan {
+  return {
+    state: 'failed',
+    message: failure.message,
+    operation: failure.operation,
+    primaryAction: 'retry',
+    remote,
+  }
+}

apps/mobile/src/mobileGitSyncRuntimePlan.test.ts

@@ -0,0 +1,53 @@
+import { describe, expect, it } from 'vitest'
+import { createMobileGitSyncPlanForVault } from './mobileGitSyncRuntimePlan'
+
+describe('createMobileGitSyncPlanForVault', () => {
+  it('keeps app-local vaults hidden from Git sync status', () => {
+    expect(createMobileGitSyncPlanForVault({
+      vault: { id: 'personal', name: 'Personal Journal' },
+    })).toEqual({
+      primaryAction: null,
+      state: 'localOnly',
+    })
+  })
+
+  it('requires credentials for remote-backed vaults', () => {
+    expect(createMobileGitSyncPlanForVault({
+      vault: {
+        id: 'tolaria',
+        name: 'Tolaria',
+        remoteUrl: 'https://github.com/refactoringhq/tolaria.git',
+      },
+    })).toMatchObject({
+      authStrategy: 'githubOAuth',
+      host: 'github.com',
+      primaryAction: 'authenticate',
+      state: 'authRequired',
+    })
+  })
+
+  it('plans ready sync when credentials are available', () => {
+    expect(createMobileGitSyncPlanForVault({
+      credentials: { state: 'available' },
+      vault: {
+        id: 'tolaria',
+        name: 'Tolaria',
+        remoteUrl: 'git@git.example.com:refactoringhq/tolaria.git',
+      },
+    })).toMatchObject({
+      canPull: true,
+      canPush: false,
+      primaryAction: 'pull',
+      state: 'ready',
+    })
+  })
+
+  it('treats invalid remote metadata as local-only until vault management can repair it', () => {
+    expect(createMobileGitSyncPlanForVault({
+      vault: { id: 'broken', name: 'Broken', remoteUrl: '/Users/luca/Laputa' },
+    })).toEqual({
+      primaryAction: null,
+      state: 'localOnly',
+    })
+  })
+})

apps/mobile/src/mobileGitSyncRuntimePlan.ts

@@ -0,0 +1,35 @@
+import {
+  createMobileGitSyncPlan,
+  type MobileGitCredentialState,
+  type MobileGitOperation,
+  type MobileGitSyncPlan,
+} from './mobileGitSyncPlan'
+import { createMobileVaultConfig } from './mobileVaultConfig'
+import type { MobileVaultMetadata } from './mobileVaultMetadata'
+
+export function createMobileGitSyncPlanForVault({
+  credentials = { state: 'missing' },
+  failure,
+  hasLocalChanges = false,
+  operation,
+  vault,
+}: {
+  credentials?: MobileGitCredentialState
+  failure?: { message: string; operation: MobileGitOperation }
+  hasLocalChanges?: boolean
+  operation?: MobileGitOperation
+  vault: MobileVaultMetadata
+}): MobileGitSyncPlan {
+  const result = createMobileVaultConfig(vault)
+  if (!result.ok) {
+    return { primaryAction: null, state: 'localOnly' }
+  }
+
+  return createMobileGitSyncPlan({
+    credentials,
+    failure,
+    hasLocalChanges,
+    operation,
+    sync: result.config.sync,
+  })
+}

apps/mobile/src/mobileGitSyncStatus.test.ts

@@ -0,0 +1,84 @@
+import { describe, expect, it } from 'vitest'
+import type { MobileGitRemote } from './mobileGitRemote'
+import { mobileGitSyncStatusView } from './mobileGitSyncStatus'
+
+describe('mobileGitSyncStatusView', () => {
+  it('hides local-only vaults from sync status chrome', () => {
+    expect(mobileGitSyncStatusView({ state: 'localOnly', primaryAction: null })).toBeNull()
+  })
+
+  it('summarizes authentication requirements by strategy', () => {
+    expect(mobileGitSyncStatusView({
+      authStrategy: 'githubOAuth',
+      host: 'github.com',
+      primaryAction: 'authenticate',
+      state: 'authRequired',
+    })).toMatchObject({
+      actionLabel: 'Connect',
+      detail: 'Connect GitHub for github.com.',
+      tone: 'attention',
+    })
+
+    expect(mobileGitSyncStatusView({
+      authStrategy: 'sshKey',
+      host: 'git.example.com',
+      primaryAction: 'authenticate',
+      state: 'authRequired',
+    })).toMatchObject({
+      detail: 'Add an SSH key for git.example.com.',
+    })
+  })
+
+  it.each([
+    { canPush: false, actionLabel: 'Pull', detail: 'Vault can pull from remote.', tone: 'positive' },
+    { canPush: true, actionLabel: 'Push', detail: 'Local changes are ready to push.', tone: 'warning' },
+  ] as const)('summarizes ready sync state with $actionLabel', ({ actionLabel, canPush, detail, tone }) => {
+    expect(mobileGitSyncStatusView({
+      canPull: true,
+      canPush,
+      primaryAction: canPush ? 'push' : 'pull',
+      remote: remote(),
+      state: 'ready',
+    })).toMatchObject({
+      actionLabel,
+      detail,
+      label: 'refactoringhq/tolaria',
+      tone,
+    })
+  })
+
+  it('summarizes syncing and failed operations', () => {
+    expect(mobileGitSyncStatusView({
+      operation: 'pull',
+      primaryAction: null,
+      remote: remote(),
+      state: 'syncing',
+    })).toMatchObject({
+      actionLabel: null,
+      detail: 'Pull in progress.',
+      tone: 'neutral',
+    })
+
+    expect(mobileGitSyncStatusView({
+      message: 'Authentication failed',
+      operation: 'push',
+      primaryAction: 'retry',
+      remote: remote(),
+      state: 'failed',
+    })).toMatchObject({
+      actionLabel: 'Retry',
+      detail: 'Authentication failed',
+      label: 'Push failed',
+    })
+  })
+})
+
+function remote(): MobileGitRemote {
+  return {
+    authStrategy: 'githubOAuth',
+    host: 'github.com',
+    owner: 'refactoringhq',
+    repository: 'tolaria',
+    url: 'https://github.com/refactoringhq/tolaria.git',
+  }
+}

apps/mobile/src/mobileGitSyncStatus.ts

@@ -0,0 +1,55 @@
+import type { MobileGitSyncPlan } from './mobileGitSyncPlan'
+
+export type MobileGitSyncStatusTone = 'attention' | 'neutral' | 'positive' | 'warning'
+
+export type MobileGitSyncStatusView = {
+  actionLabel: string | null
+  detail: string
+  label: string
+  tone: MobileGitSyncStatusTone
+}
+
+export function mobileGitSyncStatusView(plan: MobileGitSyncPlan): MobileGitSyncStatusView | null {
+  switch (plan.state) {
+    case 'localOnly':
+      return null
+    case 'authRequired':
+      return {
+        actionLabel: 'Connect',
+        detail: authDetail(plan),
+        label: 'Git authentication required',
+        tone: 'attention',
+      }
+    case 'ready':
+      return {
+        actionLabel: actionLabel(plan.primaryAction),
+        detail: plan.canPush ? 'Local changes are ready to push.' : 'Vault can pull from remote.',
+        label: `${plan.remote.owner}/${plan.remote.repository}`,
+        tone: plan.canPush ? 'warning' : 'positive',
+      }
+    case 'syncing':
+      return {
+        actionLabel: null,
+        detail: `${actionLabel(plan.operation)} in progress.`,
+        label: `${plan.remote.owner}/${plan.remote.repository}`,
+        tone: 'neutral',
+      }
+    case 'failed':
+      return {
+        actionLabel: 'Retry',
+        detail: plan.message,
+        label: `${actionLabel(plan.operation)} failed`,
+        tone: 'warning',
+      }
+  }
+}
+
+function authDetail(plan: Extract<MobileGitSyncPlan, { state: 'authRequired' }>) {
+  return plan.authStrategy === 'githubOAuth'
+    ? `Connect GitHub for ${plan.host}.`
+    : `Add an SSH key for ${plan.host}.`
+}
+
+function actionLabel(action: 'clone' | 'pull' | 'push') {
+  return action[0].toUpperCase() + action.slice(1)
+}

apps/mobile/src/mobileGitTransport.test.ts

@@ -0,0 +1,52 @@
+import { describe, expect, it } from 'vitest'
+import {
+  createUnavailableMobileGitTransport,
+  runMobileGitTransportOperation,
+  type MobileGitTransport,
+} from './mobileGitTransport'
+import type { MobileGitRemote } from './mobileGitRemote'
+
+describe('mobile git transport', () => {
+  it('runs the requested transport operation', async () => {
+    const calls: string[] = []
+    const transport: MobileGitTransport = {
+      pull: async () => {
+        calls.push('pull')
+        return { state: 'completed' }
+      },
+      push: async () => {
+        calls.push('push')
+        return { state: 'completed' }
+      },
+    }
+
+    await runMobileGitTransportOperation({
+      operation: 'push',
+      remote: remote(),
+      transport,
+      vault: { id: 'personal', name: 'Personal Journal' },
+    })
+
+    expect(calls).toEqual(['push'])
+  })
+
+  it('fails explicitly until a native git implementation is wired', async () => {
+    await expect(createUnavailableMobileGitTransport().pull({
+      remote: remote(),
+      vault: { id: 'personal', name: 'Personal Journal' },
+    })).resolves.toEqual({
+      message: 'Mobile Git transport is not available yet.',
+      state: 'failed',
+    })
+  })
+})
+
+function remote(): MobileGitRemote {
+  return {
+    authStrategy: 'githubOAuth',
+    host: 'github.com',
+    owner: 'refactoringhq',
+    repository: 'tolaria',
+    url: 'https://github.com/refactoringhq/tolaria.git',
+  }
+}

apps/mobile/src/mobileGitTransport.ts

@@ -0,0 +1,62 @@
+import type { MobileGitRemote } from './mobileGitRemote'
+import type { MobileVaultMetadata } from './mobileVaultMetadata'
+import type { MobileGitTransportOperation } from './mobileGitPrimaryAction'
+
+export type MobileGitTransportRequest = {
+  remote: MobileGitRemote
+  vault: MobileVaultMetadata
+}
+
+export type MobileGitTransportResult =
+  | {
+      state: 'completed'
+    }
+  | {
+      message: string
+      state: 'failed'
+    }
+
+export type MobileGitRepositoryStatus =
+  | {
+      hasLocalChanges: boolean
+      isRepository: boolean
+      state: 'available'
+    }
+  | {
+      message: string
+      state: 'failed'
+    }
+
+export type MobileGitTransport = {
+  pull: (request: MobileGitTransportRequest) => Promise<MobileGitTransportResult>
+  push: (request: MobileGitTransportRequest) => Promise<MobileGitTransportResult>
+  status?: (request: MobileGitTransportRequest) => Promise<MobileGitRepositoryStatus>
+}
+
+export function createUnavailableMobileGitTransport(): MobileGitTransport {
+  return {
+    pull: () => unavailableTransportResult(),
+    push: () => unavailableTransportResult(),
+  }
+}
+
+export function runMobileGitTransportOperation({
+  operation,
+  remote,
+  transport,
+  vault,
+}: {
+  operation: MobileGitTransportOperation
+  remote: MobileGitRemote
+  transport: MobileGitTransport
+  vault: MobileVaultMetadata
+}) {
+  return transport[operation]({ remote, vault })
+}
+
+function unavailableTransportResult(): Promise<MobileGitTransportResult> {
+  return Promise.resolve({
+    message: 'Mobile Git transport is not available yet.',
+    state: 'failed',
+  })
+}

apps/mobile/src/mobileHtmlEntities.test.ts

@@ -0,0 +1,12 @@
+import { describe, expect, it } from 'vitest'
+import { decodeMobileHtmlEntities } from './mobileHtmlEntities'
+
+describe('decodeMobileHtmlEntities', () => {
+  it('decodes common named, decimal, hexadecimal, and spacing entities', () => {
+    expect(
+      decodeMobileHtmlEntities({
+        text: 'A B <C> ! ? &',
+      }),
+    ).toBe('A B <C> ! ? &')
+  })
+})

apps/mobile/src/mobileHtmlEntities.ts

@@ -0,0 +1,24 @@
+export function decodeMobileHtmlEntities(input: { text: string }) {
+  return input.text
+    .replace(/&#x([0-9a-f]+);/gi, (_, value: string) => numericEntity({ radix: 16, value }))
+    .replace(/&#([0-9]+);/g, (_, value: string) => numericEntity({ radix: 10, value }))
+    .replace(/ /g, ' ')
+    .replace(/&lt;/g, '<')
+    .replace(/&gt;/g, '>')
+    .replace(/&quot;/g, '"')
+    .replace(/&#39;/g, "'")
+    .replace(/&amp;/g, '&')
+}
+
+function numericEntity(input: { radix: number; value: string }) {
+  const codePoint = Number.parseInt(input.value, input.radix)
+  if (!Number.isFinite(codePoint)) {
+    return input.value
+  }
+
+  try {
+    return String.fromCodePoint(codePoint)
+  } catch {
+    return input.value
+  }
+}

apps/mobile/src/mobileIsomorphicGitTransport.test.ts

@@ -0,0 +1,161 @@
+import { describe, expect, it } from 'vitest'
+import type { StatusRow } from 'isomorphic-git'
+import type { MobileGitCredentialStorage } from './mobileGitCredentialStorage'
+import type { ExpoMobileVaultFileSystem } from './mobileExpoVaultStorage'
+import {
+  createIsomorphicMobileGitTransport,
+  type MobileIsoGitClient,
+} from './mobileIsomorphicGitTransport'
+import type { MobileGitTransportRequest } from './mobileGitTransport'
+
+describe('isomorphic mobile git transport', () => {
+  it('clones a remote vault when the app-local directory is not a git repository', async () => {
+    const { events, transport } = transportFixture({ hasRepository: false })
+
+    await expect(transport.pull(request())).resolves.toEqual({ state: 'completed' })
+
+    expect(events).toEqual(['clone:https://github.com/refactoringhq/tolaria.git'])
+  })
+
+  it('pulls an existing app-local repository', async () => {
+    const { events, transport } = transportFixture({ hasRepository: true })
+
+    await expect(transport.pull(request())).resolves.toEqual({ state: 'completed' })
+
+    expect(events).toEqual(['pull'])
+  })
+
+  it('autocommits changed and deleted files before pushing', async () => {
+    const events: string[] = []
+    const transport = createIsomorphicMobileGitTransport({
+      credentialStorage: credentialStorage(),
+      fileSystem: fileSystem({ hasRepository: true }),
+      gitClient: gitClient({
+        events,
+        statusRows: [
+          ['changed.md', 1, 2, 1],
+          ['deleted.md', 1, 0, 1],
+        ],
+      }),
+    })
+
+    await expect(transport.push(request())).resolves.toEqual({ state: 'completed' })
+
+    expect(events).toEqual(['add:changed.md', 'remove:deleted.md', 'commit', 'push'])
+  })
+
+  it('reports dirty repository state for sync planning', async () => {
+    const transport = createIsomorphicMobileGitTransport({
+      credentialStorage: credentialStorage(),
+      fileSystem: fileSystem({ hasRepository: true }),
+      gitClient: gitClient({ statusRows: [['changed.md', 1, 2, 1]] }),
+    })
+
+    await expect(transport.status?.(request())).resolves.toEqual({
+      hasLocalChanges: true,
+      isRepository: true,
+      state: 'available',
+    })
+  })
+})
+
+function transportFixture({
+  hasRepository,
+  statusRows,
+}: {
+  hasRepository: boolean
+  statusRows?: StatusRow[]
+}) {
+  const events: string[] = []
+  const transport = createIsomorphicMobileGitTransport({
+    credentialStorage: credentialStorage(),
+    fileSystem: fileSystem({ hasRepository }),
+    gitClient: gitClient({ events, statusRows }),
+  })
+
+  return { events, transport }
+}
+
+function gitClient({
+  events = [],
+  statusRows = [],
+}: {
+  events?: string[]
+  statusRows?: StatusRow[]
+} = {}): MobileIsoGitClient {
+  return {
+    add: async ({ filepath }) => {
+      events.push(`add:${filepath}`)
+    },
+    clone: async ({ url }) => {
+      events.push(`clone:${url}`)
+    },
+    commit: async () => {
+      events.push('commit')
+      return 'commit-oid'
+    },
+    pull: async () => {
+      events.push('pull')
+    },
+    push: async () => {
+      events.push('push')
+      return { error: null, ok: true }
+    },
+    remove: async ({ filepath }) => {
+      events.push(`remove:${filepath}`)
+    },
+    statusMatrix: async () => statusRows,
+  }
+}
+
+function credentialStorage(): MobileGitCredentialStorage {
+  return {
+    loadRecord: async () => ({
+      host: 'github.com',
+      kind: 'githubOAuthToken',
+      secret: {
+        accessToken: 'github-token',
+        tokenType: 'bearer',
+      },
+      strategy: 'githubOAuth',
+      storedAt: '2026-05-12T12:00:00.000Z',
+    }),
+    loadState: async () => ({ state: 'available' }),
+    remove: async () => {},
+    saveRecord: async () => {},
+  }
+}
+
+function fileSystem({ hasRepository }: { hasRepository: boolean }): ExpoMobileVaultFileSystem {
+  return {
+    deleteAsync: async () => {},
+    documentDirectory: 'file:///docs/',
+    getInfoAsync: async (uri) => ({
+      exists: uri === 'file:///docs/vaults/personal-journal' || (hasRepository && uri.endsWith('/.git')),
+      isDirectory: true,
+      modificationTime: 0,
+      size: 0,
+    }),
+    makeDirectoryAsync: async () => {},
+    readAsStringAsync: async () => '',
+    readDirectoryAsync: async () => [],
+    writeAsStringAsync: async () => {},
+  }
+}
+
+function request(): MobileGitTransportRequest {
+  return {
+    remote: {
+      authStrategy: 'githubOAuth',
+      host: 'github.com',
+      owner: 'refactoringhq',
+      repository: 'tolaria',
+      url: 'https://github.com/refactoringhq/tolaria.git',
+    },
+    vault: {
+      id: 'personal',
+      name: 'Personal Journal',
+      remoteUrl: 'https://github.com/refactoringhq/tolaria.git',
+    },
+  }
+}

apps/mobile/src/mobileIsomorphicGitTransport.ts

@@ -0,0 +1,256 @@
+import * as git from 'isomorphic-git'
+import http from 'isomorphic-git/http/web'
+import type { AuthCallback, FsClient, HttpClient, StatusRow } from 'isomorphic-git'
+import type { ExpoMobileVaultFileSystem } from './mobileExpoVaultStorage'
+import { createMobileExpoGitFileSystem } from './mobileExpoGitFileSystem'
+import type { MobileGitCredentialStorage } from './mobileGitCredentialStorage'
+import type { MobileGitRemote } from './mobileGitRemote'
+import type {
+  MobileGitRepositoryStatus,
+  MobileGitTransport,
+  MobileGitTransportRequest,
+  MobileGitTransportResult,
+} from './mobileGitTransport'
+
+export type MobileIsoGitClient = {
+  add: (input: { dir: string; filepath: string; fs: FsClient }) => Promise<void>
+  clone: (input: { depth?: number; dir: string; fs: FsClient; http: HttpClient; onAuth: AuthCallback; singleBranch: true; url: string }) => Promise<void>
+  commit: (input: {
+    author: { email: string; name: string }
+    dir: string
+    fs: FsClient
+    message: string
+  }) => Promise<string>
+  pull: (input: {
+    author: { email: string; name: string }
+    dir: string
+    fastForwardOnly: true
+    fs: FsClient
+    http: HttpClient
+    onAuth: AuthCallback
+    singleBranch: true
+  }) => Promise<void>
+  push: (input: { dir: string; fs: FsClient; http: HttpClient; onAuth: AuthCallback }) => Promise<{ ok: boolean; error: string | null }>
+  remove: (input: { dir: string; filepath: string; fs: FsClient }) => Promise<void>
+  statusMatrix: (input: { dir: string; fs: FsClient }) => Promise<StatusRow[]>
+}
+
+export function createIsomorphicMobileGitTransport({
+  credentialStorage,
+  fileSystem,
+  gitClient = defaultGitClient,
+  httpClient = http,
+}: {
+  credentialStorage: MobileGitCredentialStorage
+  fileSystem: ExpoMobileVaultFileSystem
+  gitClient?: MobileIsoGitClient
+  httpClient?: HttpClient
+}): MobileGitTransport {
+  return {
+    pull: (request) => runGitOperation(() => pullOrClone({ credentialStorage, fileSystem, gitClient, httpClient, request })),
+    push: (request) => runGitOperation(() => commitAndPush({ credentialStorage, fileSystem, gitClient, httpClient, request })),
+    status: (request) => repositoryStatus({ fileSystem, gitClient, request }),
+  }
+}
+
+async function pullOrClone({
+  credentialStorage,
+  fileSystem,
+  gitClient,
+  httpClient,
+  request,
+}: {
+  credentialStorage: MobileGitCredentialStorage
+  fileSystem: ExpoMobileVaultFileSystem
+  gitClient: MobileIsoGitClient
+  httpClient: HttpClient
+  request: MobileGitTransportRequest
+}) {
+  const context = createMobileExpoGitFileSystem({ fileSystem, vault: request.vault })
+  const onAuth = await authForRequest({ credentialStorage, remote: request.remote })
+
+  if (await isGitRepository(context)) {
+    await gitClient.pull({
+      author: mobileGitAuthor(),
+      dir: context.dir,
+      fastForwardOnly: true,
+      fs: context.fs,
+      http: httpClient,
+      onAuth,
+      singleBranch: true,
+    })
+    return
+  }
+
+  await gitClient.clone({
+    depth: 1,
+    dir: context.dir,
+    fs: context.fs,
+    http: httpClient,
+    onAuth,
+    singleBranch: true,
+    url: request.remote.url,
+  })
+}
+
+async function commitAndPush({
+  credentialStorage,
+  fileSystem,
+  gitClient,
+  httpClient,
+  request,
+}: {
+  credentialStorage: MobileGitCredentialStorage
+  fileSystem: ExpoMobileVaultFileSystem
+  gitClient: MobileIsoGitClient
+  httpClient: HttpClient
+  request: MobileGitTransportRequest
+}) {
+  const context = createMobileExpoGitFileSystem({ fileSystem, vault: request.vault })
+  if (!await isGitRepository(context)) {
+    throw new Error('Pull the remote vault before pushing mobile changes.')
+  }
+
+  await commitLocalChanges({ context, gitClient })
+  const result = await gitClient.push({
+    dir: context.dir,
+    fs: context.fs,
+    http: httpClient,
+    onAuth: await authForRequest({ credentialStorage, remote: request.remote }),
+  })
+  if (!result.ok) {
+    throw new Error(result.error ?? 'Git push failed.')
+  }
+}
+
+async function repositoryStatus({
+  fileSystem,
+  gitClient,
+  request,
+}: {
+  fileSystem: ExpoMobileVaultFileSystem
+  gitClient: MobileIsoGitClient
+  request: MobileGitTransportRequest
+}): Promise<MobileGitRepositoryStatus> {
+  try {
+    const context = createMobileExpoGitFileSystem({ fileSystem, vault: request.vault })
+    if (!await isGitRepository(context)) {
+      return { hasLocalChanges: false, isRepository: false, state: 'available' }
+    }
+
+    return {
+      hasLocalChanges: hasChangedRows(await gitClient.statusMatrix({ dir: context.dir, fs: context.fs })),
+      isRepository: true,
+      state: 'available',
+    }
+  } catch {
+    return { message: 'Could not inspect mobile Git repository state.', state: 'failed' }
+  }
+}
+
+async function commitLocalChanges({
+  context,
+  gitClient,
+}: {
+  context: MobileExpoGitContext
+  gitClient: MobileIsoGitClient
+}) {
+  const matrix = await gitClient.statusMatrix({ dir: context.dir, fs: context.fs })
+  const changedRows = matrix.filter(isChangedRow)
+  await Promise.all(changedRows.map((row) => stageStatusRow({ context, gitClient, row })))
+
+  if (changedRows.length > 0) {
+    await gitClient.commit({
+      author: mobileGitAuthor(),
+      dir: context.dir,
+      fs: context.fs,
+      message: `Mobile sync ${new Date().toISOString()}`,
+    })
+  }
+}
+
+async function stageStatusRow({
+  context,
+  gitClient,
+  row,
+}: {
+  context: MobileExpoGitContext
+  gitClient: MobileIsoGitClient
+  row: StatusRow
+}) {
+  const filepath = row[0]
+  if (row[2] === 0) {
+    await gitClient.remove({ dir: context.dir, filepath, fs: context.fs })
+    return
+  }
+
+  await gitClient.add({ dir: context.dir, filepath, fs: context.fs })
+}
+
+async function authForRequest({
+  credentialStorage,
+  remote,
+}: {
+  credentialStorage: MobileGitCredentialStorage
+  remote: MobileGitRemote
+}): Promise<AuthCallback> {
+  if (remote.authStrategy !== 'githubOAuth') {
+    throw new Error('Mobile Git sync currently supports GitHub OAuth remotes only.')
+  }
+
+  const record = await credentialStorage.loadRecord({ host: remote.host, strategy: remote.authStrategy })
+  if (!record?.secret?.accessToken) {
+    throw new Error('GitHub credentials are missing. Connect GitHub before syncing.')
+  }
+
+  return () => ({ username: record.secret?.accessToken })
+}
+
+async function isGitRepository(context: MobileExpoGitContext) {
+  try {
+    await context.fs.promises.stat(`${context.dir}/.git`)
+    return true
+  } catch {
+    return false
+  }
+}
+
+async function runGitOperation(operation: () => Promise<void>): Promise<MobileGitTransportResult> {
+  try {
+    await operation()
+    return { state: 'completed' }
+  } catch (error) {
+    return { message: gitFailureMessage(error), state: 'failed' }
+  }
+}
+
+function hasChangedRows(rows: StatusRow[]) {
+  return rows.some(isChangedRow)
+}
+
+function isChangedRow(row: StatusRow) {
+  return row[1] !== row[2] || row[2] !== row[3]
+}
+
+function mobileGitAuthor() {
+  return {
+    email: 'mobile@tolaria.local',
+    name: 'Tolaria Mobile',
+  }
+}
+
+function gitFailureMessage(error: unknown) {
+  return error instanceof Error ? error.message : 'Mobile Git sync failed.'
+}
+
+type MobileExpoGitContext = ReturnType<typeof createMobileExpoGitFileSystem>
+
+const defaultGitClient: MobileIsoGitClient = {
+  add: git.add,
+  clone: git.clone,
+  commit: git.commit,
+  pull: git.pull,
+  push: git.push,
+  remove: git.remove,
+  statusMatrix: git.statusMatrix,
+}

apps/mobile/src/mobileNativeAiProviderSecretStorage.ts

@@ -0,0 +1,6 @@
+import * as SecureStore from 'expo-secure-store'
+import { createMobileAiProviderSecretStorage } from './mobileAiProviderSecretStorage'
+
+export function createNativeMobileAiProviderSecretStorage() {
+  return createMobileAiProviderSecretStorage(SecureStore)
+}