fix: resolve pre-existing TypeScript build errors

- Accept string | null in typeColors functions (matches VaultEntry.isA type)
- Add missing snippet/relationships fields to test mock entries
- Remove unused imports (AIChatPanel in App, cn in Editor)
- Fix Promise type cast in Editor.tsx tryParseMarkdownToBlocks
- Fix null coalescing in Inspector resolveRefType return
- Remove unused container variable in NoteList test

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/components/Editor.test.tsx

@@ -47,6 +47,8 @@ const mockEntry: VaultEntry = {
   modifiedAt: 1700000000,
   createdAt: null,
   fileSize: 1024,
+  snippet: '',
+  relationships: {},
 }
 
 const mockContent = `---

src/components/Editor.tsx

@@ -12,7 +12,6 @@ import { ResizeHandle } from './ResizeHandle'
 import { TabBar } from './TabBar'
 import { BreadcrumbBar } from './BreadcrumbBar'
 import { useEditorTheme } from '../hooks/useTheme'
-import { cn } from '@/lib/utils'
 import { splitFrontmatter, preProcessWikilinks, injectWikilinks, countWords } from '../utils/wikilinks'
 import './Editor.css'
 import './EditorTheme.css'
@@ -235,7 +234,7 @@ export const Editor = memo(function Editor({
             applyBlocks(withWikilinks)
           }
           if (result && typeof (result as any).then === 'function') {
-            (result as Promise<any[]>).then(handleBlocks)
+            (result as unknown as Promise<any[]>).then(handleBlocks)
           } else {
             handleBlocks(result as any[])
           }

src/components/Inspector.test.tsx

@@ -17,6 +17,8 @@ const mockEntry: VaultEntry = {
   modifiedAt: 1707900000,
   createdAt: null,
   fileSize: 1024,
+  snippet: '',
+  relationships: {},
 }
 
 const mockContent = `---
@@ -50,6 +52,8 @@ const referrerEntry: VaultEntry = {
   modifiedAt: 1707900000,
   createdAt: null,
   fileSize: 200,
+  snippet: '',
+  relationships: {},
 }
 
 const allContent: Record<string, string> = {

src/components/Inspector.tsx

@@ -70,7 +70,7 @@ function resolveRefType(ref: string, entries: VaultEntry[]): string | undefined
     if (fileStem === target.split('/').pop()) return true
     return false
   })
-  return match?.isA
+  return match?.isA ?? undefined
 }
 
 function RelationshipGroup({ label, refs, entries, onNavigate }: { label: string; refs: string[]; entries: VaultEntry[]; onNavigate: (target: string) => void }) {

src/components/NoteList.test.tsx

@@ -131,7 +131,7 @@ describe('NoteList', () => {
   })
 
   it('shows entity pinned at top with grouped children', () => {
-    const { container } = render(
+    render(
       <NoteList entries={mockEntries} selection={{ kind: 'entity', entry: mockEntries[0] }} selectedNote={null} onSelectNote={noopSelect} allContent={{}} onCreateNote={vi.fn()} />
     )
     // Entity title appears in header and pinned card

src/components/Sidebar.test.tsx

@@ -18,6 +18,8 @@ const mockEntries: VaultEntry[] = [
     modifiedAt: 1700000000,
     createdAt: null,
     fileSize: 1024,
+    snippet: '',
+    relationships: {},
   },
   {
     path: '/vault/responsibility/grow-newsletter.md',
@@ -33,6 +35,8 @@ const mockEntries: VaultEntry[] = [
     modifiedAt: 1700000000,
     createdAt: null,
     fileSize: 512,
+    snippet: '',
+    relationships: {},
   },
   {
     path: '/vault/experiment/stock-screener.md',
@@ -48,6 +52,8 @@ const mockEntries: VaultEntry[] = [
     modifiedAt: 1700000000,
     createdAt: null,
     fileSize: 256,
+    snippet: '',
+    relationships: {},
   },
   {
     path: '/vault/procedure/weekly-essays.md',
@@ -63,6 +69,8 @@ const mockEntries: VaultEntry[] = [
     modifiedAt: 1700000000,
     createdAt: null,
     fileSize: 128,
+    snippet: '',
+    relationships: {},
   },
   {
     path: '/vault/topic/software-development.md',
@@ -78,6 +86,8 @@ const mockEntries: VaultEntry[] = [
     modifiedAt: 1700000000,
     createdAt: null,
     fileSize: 256,
+    snippet: '',
+    relationships: {},
   },
   {
     path: '/vault/topic/trading.md',
@@ -93,6 +103,8 @@ const mockEntries: VaultEntry[] = [
     modifiedAt: 1700000000,
     createdAt: null,
     fileSize: 180,
+    snippet: '',
+    relationships: {},
   },
   {
     path: '/vault/person/alice.md',
@@ -108,6 +120,8 @@ const mockEntries: VaultEntry[] = [
     modifiedAt: 1700000000,
     createdAt: null,
     fileSize: 100,
+    snippet: '',
+    relationships: {},
   },
   {
     path: '/vault/event/kickoff.md',
@@ -123,6 +137,8 @@ const mockEntries: VaultEntry[] = [
     modifiedAt: 1700000000,
     createdAt: null,
     fileSize: 200,
+    snippet: '',
+    relationships: {},
   },
 ]