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>

src/fabledassistant/routes/knowledge.py

@@ -129,3 +129,16 @@ async def list_knowledge_tags():
     from fabledassistant.services.knowledge import get_knowledge_tags
     tags = await get_knowledge_tags(uid, note_type=note_type)
     return jsonify({"tags": tags})
+
+
+@knowledge_bp.route("/counts", methods=["GET"])
+@login_required
+async def get_knowledge_counts():
+    """Return per-type counts — used by the sidebar to show item counts."""
+    uid = get_current_user_id()
+    tags_raw = request.args.get("tags", "").strip()
+    tags = [t.strip() for t in tags_raw.split(",") if t.strip()] if tags_raw else None
+
+    from fabledassistant.services.knowledge import get_knowledge_counts as _counts
+    counts = await _counts(uid, tags=tags)
+    return jsonify(counts)