chore(api): hand-edit generated types for commentId + annotationId

Adds the two new optional fields on ActivityFeedItemDTO in the
generated openapi-typescript output. Matches exactly what
'npm run generate:api' would emit against the updated backend DTO;
regenerate on a live backend before merge to confirm drift-free.

Refs #300.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

frontend/src/lib/generated/api.ts

@@ -2043,6 +2043,16 @@ export interface components {
             count: number;
             /** Format: date-time */
             happenedAtUntil?: string;
+            /**
+             * Format: uuid
+             * @description Deep-link target comment; populated only for COMMENT_ADDED and MENTION_CREATED kinds.
+             */
+            commentId?: string;
+            /**
+             * Format: uuid
+             * @description Annotation associated with the comment; populated only for COMMENT_ADDED and MENTION_CREATED kinds.
+             */
+            annotationId?: string;
         };
         InvitePrefillDTO: {
             firstName: string;