rename: Note→Post/Line (dashboard); Recognition→Note (drama); new-post/my-posts to billboard

- dashboard: Note→Post, Item→Line across models, forms, views, API, urls & tests
- new-post (9×3) & my-posts (3×3) applets migrate from dashboard→billboard context; billboard view passes form & recent_posts
- drama: Recognition→Note, related_name notes; billboard URL /recognition/→/my-notes/, set-palette at /note/<slug>/set-palette
- recognition.js→note.js (module Note, data.note key); recognition-page.js→note-page.js; .recog-*→.note-*
- _recognition.scss→_note.scss; BillNotes page header; applet slug billboard-recognition→billboard-notes (My Notes)
- NoteSpec.js replaces RecognitionSpec.js; test_recognition.py→test_applet_my_notes.py
- 4 migrations applied: dashboard 0004, applets 0011+0012, drama 0005; 683 ITs green

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

src/apps/api/views.py

@@ -2,36 +2,36 @@ from django.shortcuts import get_object_or_404
 from rest_framework.views import APIView
 from rest_framework.response import Response
 
-from apps.api.serializers import ItemSerializer, NoteSerializer, UserSerializer
-from apps.dashboard.models import Item, Note
+from apps.api.serializers import LineSerializer, PostSerializer, UserSerializer
+from apps.dashboard.models import Line, Post
 from apps.lyric.models import User
 
 
-class NoteDetailAPI(APIView):
-    def get(self, request, note_id):
-        note = get_object_or_404(Note, id=note_id)
-        serializer = NoteSerializer(note)
+class PostDetailAPI(APIView):
+    def get(self, request, post_id):
+        post = get_object_or_404(Post, id=post_id)
+        serializer = PostSerializer(post)
         return Response(serializer.data)
 
-class NoteItemsAPI(APIView):
-    def post(self, request, note_id):
-        note = get_object_or_404(Note, id=note_id)
-        serializer = ItemSerializer(data=request.data, context={"note": note})
+class PostLinesAPI(APIView):
+    def post(self, request, post_id):
+        post = get_object_or_404(Post, id=post_id)
+        serializer = LineSerializer(data=request.data, context={"post": post})
         if serializer.is_valid():
-            serializer.save(note=note)
+            serializer.save(post=post)
             return Response(serializer.data, status=201)
         return Response(serializer.errors, status=400)
 
-class NotesAPI(APIView):
+class PostsAPI(APIView):
     def get(self, request):
-        notes = Note.objects.filter(owner=request.user)
-        serializer = NoteSerializer(notes, many=True)
+        posts = Post.objects.filter(owner=request.user)
+        serializer = PostSerializer(posts, many=True)
         return Response(serializer.data)
 
     def post(self, request):
-        note = Note.objects.create(owner=request.user)
-        item = Item.objects.create(text=request.data.get("text", ""), note=note)
-        serializer = NoteSerializer(note)
+        post = Post.objects.create(owner=request.user)
+        line = Line.objects.create(text=request.data.get("text", ""), post=post)
+        serializer = PostSerializer(post)
         return Response(serializer.data, status=201)
 
 class UserSearchAPI(APIView):