feat: add handleToggleTypeVisibility to useEntryActions

Toggle visible property on Type note frontmatter: sets visible:false
to hide, deletes visible property to show (defaults to visible).
Wire up in App.tsx via onToggleTypeVisibility prop.

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

src/App.tsx

@@ -500,7 +500,7 @@ function App() {
         {sidebarVisible && (
           <>
             <div className="app__sidebar" style={{ width: layout.sidebarWidth }}>
-              <Sidebar entries={vault.entries} selection={selection} onSelect={setSelection} onSelectNote={notes.handleSelectNote} onCreateType={notes.handleCreateNoteImmediate} onCreateNewType={dialogs.openCreateType} onCustomizeType={entryActions.handleCustomizeType} onUpdateTypeTemplate={entryActions.handleUpdateTypeTemplate} onReorderSections={entryActions.handleReorderSections} onRenameSection={entryActions.handleRenameSection} modifiedCount={vault.modifiedFiles.length} onCommitPush={commitFlow.openCommitDialog} isGitVault={!vault.modifiedFilesError} />
+              <Sidebar entries={vault.entries} selection={selection} onSelect={setSelection} onSelectNote={notes.handleSelectNote} onCreateType={notes.handleCreateNoteImmediate} onCreateNewType={dialogs.openCreateType} onCustomizeType={entryActions.handleCustomizeType} onUpdateTypeTemplate={entryActions.handleUpdateTypeTemplate} onReorderSections={entryActions.handleReorderSections} onRenameSection={entryActions.handleRenameSection} onToggleTypeVisibility={entryActions.handleToggleTypeVisibility} modifiedCount={vault.modifiedFiles.length} onCommitPush={commitFlow.openCommitDialog} isGitVault={!vault.modifiedFilesError} />
             </div>
             <ResizeHandle onResize={layout.handleSidebarResize} />
           </>

src/hooks/useEntryActions.test.ts

@@ -289,4 +289,42 @@ describe('useEntryActions', () => {
       expect(updateEntry).not.toHaveBeenCalled()
     })
   })
+
+  describe('handleToggleTypeVisibility', () => {
+    it('sets visible to false when currently visible (null/default)', async () => {
+      const typeEntry = makeEntry({ isA: 'Type', title: 'Journal', path: '/vault/type/journal.md', visible: null })
+      const { result } = setup([typeEntry])
+
+      await act(async () => {
+        await result.current.handleToggleTypeVisibility('Journal')
+      })
+
+      expect(handleUpdateFrontmatter).toHaveBeenCalledWith('/vault/type/journal.md', 'visible', false)
+      expect(updateEntry).toHaveBeenCalledWith('/vault/type/journal.md', { visible: false })
+    })
+
+    it('sets visible to true (deletes property) when currently hidden', async () => {
+      const typeEntry = makeEntry({ isA: 'Type', title: 'Journal', path: '/vault/type/journal.md', visible: false })
+      const { result } = setup([typeEntry])
+
+      await act(async () => {
+        await result.current.handleToggleTypeVisibility('Journal')
+      })
+
+      expect(handleDeleteProperty).toHaveBeenCalledWith('/vault/type/journal.md', 'visible')
+      expect(updateEntry).toHaveBeenCalledWith('/vault/type/journal.md', { visible: null })
+    })
+
+    it('auto-creates type entry when not found', async () => {
+      const { result } = setup([])
+
+      await act(async () => {
+        await result.current.handleToggleTypeVisibility('Journal')
+      })
+
+      expect(createTypeEntry).toHaveBeenCalledWith('Journal')
+      expect(handleUpdateFrontmatter).toHaveBeenCalledWith('/vault/type/journal.md', 'visible', false)
+      expect(updateEntry).toHaveBeenCalledWith('/vault/type/journal.md', { visible: false })
+    })
+  })
 })

src/hooks/useEntryActions.ts

@@ -80,5 +80,17 @@ export function useEntryActions({
     }
   }, [entries, handleUpdateFrontmatter, handleDeleteProperty, updateEntry])
 
-  return { handleTrashNote, handleRestoreNote, handleArchiveNote, handleUnarchiveNote, handleCustomizeType, handleReorderSections, handleUpdateTypeTemplate, handleRenameSection }
+  const handleToggleTypeVisibility = useCallback(async (typeName: string) => {
+    let typeEntry = findTypeEntry(entries, typeName)
+    if (!typeEntry) typeEntry = await createTypeEntry(typeName)
+    if (typeEntry.visible === false) {
+      updateEntry(typeEntry.path, { visible: null })
+      await handleDeleteProperty(typeEntry.path, 'visible')
+    } else {
+      updateEntry(typeEntry.path, { visible: false })
+      await handleUpdateFrontmatter(typeEntry.path, 'visible', false)
+    }
+  }, [entries, handleUpdateFrontmatter, handleDeleteProperty, updateEntry, createTypeEntry])
+
+  return { handleTrashNote, handleRestoreNote, handleArchiveNote, handleUnarchiveNote, handleCustomizeType, handleReorderSections, handleUpdateTypeTemplate, handleRenameSection, handleToggleTypeVisibility }
 }