system message guardados en historial por sala

server/src/rooms/GameRoom.ts

@@ -6,6 +6,7 @@ import { broadcastDashboardUpdate } from "../adminApi";
 
 export class GameRoom extends Room<GameState> {
   maxClients = 2;
+  private systemMessages: { text: string; kind: string; timestamp: number }[] = [];
 
   getFilterOptions() {
     // If waiting for shuffled players, report as available regardless of current client count
@@ -45,6 +46,11 @@ export class GameRoom extends Room<GameState> {
     if (kind !== 'round_advance') {
       this.recentSystemMessage = { text, kind, timestamp };
     }
+    // Persist in per-room history (keep last 200)
+    this.systemMessages.push({ text, kind, timestamp });
+    if (this.systemMessages.length > 200) {
+      this.systemMessages.splice(0, this.systemMessages.length - 200);
+    }
     
     this.broadcast("chat", {
       id: `${timestamp}-${Math.random().toString(36).slice(2)}`,
@@ -937,6 +943,7 @@ export class GameRoom extends Room<GameState> {
       variant: this.state.currentVariant,
       round: this.state.currentRound,
       recentSystemMessage: this.recentSystemMessage,
+      systemMessages: this.systemMessages.slice(-50),
       decisions: {
         p1Action: this.state.p1Action,
         p2Action: this.state.p2Action,