Note editor sidebar, full-doc assist, persistent drafts, version history

NoteEditorView: two-column sidebar layout (project/milestone/tags/assist
always visible), removed assist toggle button, InlineAssistPanel removed.

Writing assist: whole_doc mode rewrites entire document; DiffView.vue
replaces editor during review showing full-document diff. Scope dropdown
in sidebar switches between whole-document and section modes.

Persistent drafts: migration 0022 adds note_drafts (UNIQUE per note+user)
and note_versions (max 20, auto-pruned) tables. Draft saved after generation
completes, restored on editor mount, cleared on accept/reject. Version
snapshot created automatically whenever note body changes on save.

HistoryPanel.vue: version list + DiffView modal, restore button writes
body back to editor.

Config: OLLAMA_NUM_CTX default raised to 65536; assist num_predict now
tracks Config.OLLAMA_NUM_CTX instead of a hardcoded 4096.

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

frontend/src/types/task.ts

@@ -13,3 +13,22 @@ export interface TaskLog {
   created_at: string;
   updated_at: string;
 }
+
+export interface NoteDraft {
+  id: number;
+  note_id: number;
+  proposed_body: string;
+  original_body: string;
+  instruction: string;
+  scope: string;
+  created_at: string;
+  updated_at: string;
+}
+
+export interface NoteVersion {
+  id: number;
+  note_id: number;
+  title: string;
+  body?: string;
+  created_at: string;
+}