feat: goals — "watch N movies in YEAR" with progress bar

Domain: Goal entity, UserSettings (federation toggle), RemoteGoalEntry.
Ports: GoalRepository, UserSettingsRepository, RemoteGoalRepository.
Adapters: sqlite + postgres repos, migrations, AP content query extensions.
Application: CRUD use cases (create/update/delete/get/list), settings use cases.
API: 7 endpoints (/goals CRUD, /users/{id}/goals, /settings) with utoipa docs.
Federation: GoalObject (Note + goal discriminator), outbound broadcast with
per-user toggle, inbound GoalObjectHandler in CompositeObjectHandler.
SPA: API client + hooks, GoalCard (shadcn Card+Progress+DropdownMenu),
GoalSheet (Drawer), profile integration (editable own, read-only others),
federation toggle in settings (Switch).
Classic HTML: glassmorphic goal card on profile, Frutiger Aero styling.
Progress computed from existing reviews — backwards compatible.

spa/src/locales/en.json

@@ -159,7 +159,22 @@
     "admin": "Admin",
     "rebuildSearch": "Rebuild Search Index",
     "rebuildSearchDesc": "Re-index all movies and people",
-    "rebuildSearchDone": "Reindex queued"
+    "rebuildSearchDone": "Reindex queued",
+    "privacy": "Privacy",
+    "federateGoals": "Share goals on Fediverse",
+    "federateGoalsDesc": "Broadcast goal progress to followers"
+  },
+  "goals": {
+    "yearGoal": "{{year}} Goal",
+    "movies": "movies",
+    "reached": "Goal reached!",
+    "setGoal": "Set Goal",
+    "editGoal": "Edit Goal",
+    "year": "Year",
+    "targetMovies": "Target (movies)",
+    "created": "Goal created",
+    "updated": "Goal updated",
+    "deleted": "Goal deleted"
   },
   "editProfile": {
     "title": "Edit Profile",