merge: 최신 main의 갱신 비용 변경을 tRPC 전송에 통합

# Conflicts:
#	app/game-api/src/server.ts
#	app/game-frontend/e2e/mainNavigation.spec.ts
#	app/game-frontend/src/utils/trpc.ts

packages/common/src/realtime/types.ts

@@ -226,18 +226,20 @@ export interface TournamentChangedEvent {
 export interface ReadModelInvalidatedEvent {
     type: 'readModelInvalidated';
     invalidation: RealtimeReadModelInvalidation;
+    /** Opaque, short-lived proof that the server initiated this refresh. */
+    refreshGrant: string;
 }
 
 export interface MessagesInvalidatedEvent {
     type: 'messagesInvalidated';
+    /** Opaque, short-lived proof that the server initiated this refresh. */
+    refreshGrant: string;
 }
 
+export const REALTIME_ACCESS_GRANT_HEADER = 'x-sammo-realtime-access-grant';
+
 /** Events safe to expose to an authenticated browser over SSE. */
 export type PublicRealtimeEvent = ReadModelInvalidatedEvent | MessagesInvalidatedEvent;
 
 export type RealtimeEvent =
-    | TurnCompletedEvent
-    | ReadModelChangedEvent
-    | MessageCreatedEvent
-    | MessagesChangedEvent
-    | TournamentChangedEvent;
+    TurnCompletedEvent | ReadModelChangedEvent | MessageCreatedEvent | MessagesChangedEvent | TournamentChangedEvent;