fix: restore API response formats + ai-ui-control ws + profile fields

- Restore {plugins: [...], total: N} for /plugins and /plugins/active-manifests
  (flat array broke frontend PluginRegistry → no menu items → empty UI)
- Restore {count: N} for /notifications/unread-count
  (scalar broke frontend notification badge)
- Fix ai_ui_control: on_install → on_activate for WS manager registration
  (WS 403 on every reconnect after container restart)
- Fix double /api/v1 prefix in useAIContext.ts and SuggestionBadge.tsx
- Add first_name, last_name, avatar_url to User model + migration 0032
- Extend UserUpdate schema with profile + password change fields
- Extend user_service.update_user with profile fields + password change
- Extend frontend UserResponse/UserUpdate types

app/services/user_service.py

@@ -116,6 +116,12 @@ class UserService:
         role: str | None = None,
         role_id: uuid.UUID | None | Any = _UNSET,
         is_active: bool | None = None,
+        first_name: str | None = None,
+        last_name: str | None = None,
+        avatar_url: str | None = None,
+        email: str | None = None,
+        current_password: str | None = None,
+        new_password: str | None = None,
     ) -> User | None:
         """Update a user.
 
@@ -147,6 +153,21 @@ class UserService:
                 user_tenant.role_id = role_id
         if is_active is not None:
             user.is_active = is_active
+        if first_name is not None:
+            user.first_name = first_name
+        if last_name is not None:
+            user.last_name = last_name
+        if avatar_url is not None:
+            user.avatar_url = avatar_url
+        if email is not None:
+            user.email = email
+        if new_password is not None and current_password is not None:
+            # Verify current password
+            from app.core.auth import verify_password
+            if not verify_password(current_password, user.password_hash):
+                raise ValueError("Current password is incorrect")
+            from app.core.auth import hash_password
+            user.password_hash = hash_password(new_password)
 
         await db.flush()
         return user