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/drama/migrations/0005_rename_recognition_to_note.py

@@ -0,0 +1,24 @@
+import django.conf
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('drama', '0004_recognition'),
+        migrations.swappable_dependency(django.conf.settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.RenameModel('Recognition', 'Note'),
+        migrations.AlterField(
+            model_name='note',
+            name='user',
+            field=models.ForeignKey(
+                django.conf.settings.AUTH_USER_MODEL,
+                on_delete=django.db.models.deletion.CASCADE,
+                related_name='notes',
+            ),
+        ),
+    ]