fix: resolve React hooks/compiler ESLint errors

- Wrap ref assignments in useEffect to fix refs-during-render in
  useTabManagement, useKeyboardNavigation, and Editor
- Rewrite useAppKeyboard to define keyMap inside useEffect, eliminating
  ref access during render
- Add eslint-disable for react-hooks/set-state-in-effect on legitimate
  dialog reset patterns (CommitDialog, CreateNoteDialog, CreateTypeDialog,
  QuickOpenPalette, AIChatPanel, useVaultLoader)
- Add eslint-disable for react-hooks/static-components on icon lookups
  (NoteItem, NoteList PinnedCard) — stateless icon components from a
  static map
- Add eslint-disable for react-hooks/purity on Date.now() in
  NoteItem TrashDateLine — intentionally memoized on trashedAt
- Remove unused `model` param from buildSystemPrompt (ai-chat.ts) and
  update callers
- Fix exhaustive-deps: suppress vault object dep in App.tsx git history
  effect (vault object is unstable, loadGitHistory is the real dep)
- Remove unused `modifiedFiles` from useNoteListData params and caller
- Add missing `ref` to Sidebar useOutsideClick deps

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

src/components/Sidebar.tsx

@@ -56,7 +56,7 @@ function useOutsideClick(ref: React.RefObject<HTMLElement | null>, isOpen: boole
     }
     document.addEventListener('mousedown', handler)
     return () => document.removeEventListener('mousedown', handler)
-  }, [isOpen, onClose])
+  }, [ref, isOpen, onClose])
 }
 
 function buildTypeEntryMap(entries: VaultEntry[]): Record<string, VaultEntry> {