feat(knowledge): note types, counts, new-note button, audit fixes

- Add note_type (note/person/place/list) selector + entity metadata fields
  (relationship, email, phone / address, hours) to NoteEditorView
- Pre-select type via ?type= query param from KnowledgeView new-note dropdown
- KnowledgeView: add split "New note / ▾" button with type dropdown
- KnowledgeView: show per-type counts on sidebar filter buttons (when > 1)
- Fix: filter-btn now flex layout so count badge aligns to right edge
- Fix: list_notes count_query was missing parent_id filter (inflated totals)
- Fix: PATCH /api/notes/:id now fires upsert_note_embedding (workspace autosave)
- Fix: get_knowledge_counts endpoint for per-type counts
- Fix: get_knowledge_tags was silently discarding note_type filter (double-stmt bug)
- Fix: NoteEditorView onMounted stray brace from edit session

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

frontend/src/stores/notes.ts

@@ -80,6 +80,8 @@ export const useNotesStore = defineStore("notes", () => {
     tags?: string[];
     project_id?: number | null;
     milestone_id?: number | null;
+    note_type?: string;
+    metadata?: Record<string, string> | null;
   }): Promise<Note> {
     try {
       return await apiPost<Note>("/api/notes", data);
@@ -91,7 +93,7 @@ export const useNotesStore = defineStore("notes", () => {
 
   async function updateNote(
     id: number,
-    data: Partial<Pick<Note, "title" | "body" | "tags" | "project_id" | "milestone_id">>
+    data: Partial<Pick<Note, "title" | "body" | "tags" | "project_id" | "milestone_id" | "note_type" | "metadata">>
   ): Promise<Note> {
     try {
       const note = await apiPut<Note>(`/api/notes/${id}`, data);