Portal backend: Facebook OAuth, social features, portal comments

- Facebook Login OAuth (meta-web auth service + routes)
- Account linking (merge Quest metaId + Facebook facebookId)
- User profile updates (bio, isPublic, displayName)
- Social endpoints: follow/unfollow, feed (trending/following/recent), likes
- Portal comments via WebSocket (subscribe_portal, send_portal_comment)
- Prisma migration: Follow, Like models, facebookId/bio/isPublic on User
- Provider OAuth source=web redirect support for portal callbacks
- Docker compose portal service, CORS multi-origin support

src/types/api.ts

@@ -20,6 +20,31 @@ export interface UserProfileResponse {
   displayName: string;
   email: string | null;
   avatarUrl: string | null;
+  bio: string;
+  isPublic: boolean;
+  hasQuestLink: boolean;
+  hasFacebookLink: boolean;
+}
+
+export interface UpdateProfileBody {
+  displayName?: string;
+  bio?: string;
+  isPublic?: boolean;
+}
+
+export interface MetaWebCallbackBody {
+  code: string;
+  state: string;
+}
+
+export interface LinkQuestBody {
+  metaId: string;
+  nonce?: string;
+}
+
+export interface LinkFacebookBody {
+  code: string;
+  state: string;
 }
 
 // ── Providers ────────────────────────────────────────────
@@ -113,3 +138,36 @@ export interface PreparedDestination {
   streamKey: string;
   broadcastId: string;
 }
+
+// ── Social ──────────────────────────────────────────────
+export interface PublicUserResponse {
+  id: string;
+  displayName: string;
+  avatarUrl: string | null;
+  bio: string;
+  followerCount: number;
+  followingCount: number;
+  isFollowing: boolean;
+}
+
+export interface FeedItemResponse {
+  plan: StreamPlanResponse & { user: { id: string; displayName: string; avatarUrl: string | null } };
+  likeCount: number;
+  commentCount: number;
+  isLiked: boolean;
+}
+
+export interface FeedResponse {
+  items: FeedItemResponse[];
+  nextCursor: string | null;
+}
+
+export interface LikeStatusResponse {
+  count: number;
+  isLiked: boolean;
+}
+
+export interface FollowListResponse {
+  users: PublicUserResponse[];
+  nextCursor: string | null;
+}