Migrate frontend realtime messaging to SSE.

Switch service integrations and screen/store consumers from websocket events to SSE, and ignore generated dist-web artifacts.

Made-with: Cursor

src/types/dto.ts

@@ -62,6 +62,7 @@ export interface PostDTO {
   title: string;
   content: string;
   images: PostImageDTO[];
+  status?: string;
   likes_count: number;
   comments_count: number;
   favorites_count: number;
@@ -71,6 +72,7 @@ export interface PostDTO {
   is_locked: boolean;
   is_vote: boolean;
   created_at: string;
+  updated_at?: string;
   author: UserDTO | null;
   is_liked: boolean;
   is_favorited: boolean;