fixes for redis event memory leak

libs/cache/src/redis-cache.ts

@@ -42,7 +42,13 @@ export class RedisCache implements CacheProvider {
       singleton: options.shared ?? true, // Default to shared connection for cache
     });
 
-    this.setupEventHandlers();
+    // Only setup event handlers for non-shared connections to avoid memory leaks
+    if (!(options.shared ?? true)) {
+      this.setupEventHandlers();
+    } else {
+      // For shared connections, just monitor the connection status without adding handlers
+      this.isConnected = this.redis.status === 'ready';
+    }
   }
 
   private setupEventHandlers(): void {
@@ -235,6 +241,14 @@ export class RedisCache implements CacheProvider {
   }
 
   isReady(): boolean {
-    return this.redis.status === 'ready';
+    // Always check the actual Redis connection status
+    const ready = this.redis.status === 'ready';
+    
+    // Update local flag if we're not using shared connection
+    if (this.isConnected !== ready) {
+      this.isConnected = ready;
+    }
+    
+    return ready;
   }
 }