feat: synchronize account icons across game profiles

app/gateway-api/src/auth/flushPublisher.ts

@@ -2,10 +2,11 @@ export interface GatewayUserFlushEvent {
     userId: string;
     flushedAt: string;
     reason?: string;
+    iconRevision?: string;
 }
 
 export interface GatewayFlushPublisher {
-    publishUserFlush(userId: string, reason?: string): Promise<void>;
+    publishUserFlush(userId: string, reason?: string, metadata?: { iconRevision?: string }): Promise<void>;
 }
 
 export class RedisGatewayFlushPublisher implements GatewayFlushPublisher {
@@ -17,11 +18,12 @@ export class RedisGatewayFlushPublisher implements GatewayFlushPublisher {
         this.channel = channel;
     }
 
-    async publishUserFlush(userId: string, reason?: string): Promise<void> {
+    async publishUserFlush(userId: string, reason?: string, metadata?: { iconRevision?: string }): Promise<void> {
         const payload: GatewayUserFlushEvent = {
             userId,
             flushedAt: new Date().toISOString(),
             reason,
+            ...(metadata?.iconRevision ? { iconRevision: metadata.iconRevision } : {}),
         };
         await this.client.publish(this.channel, JSON.stringify(payload));
     }