feat(socket): add configurable maxListeners to prevent memory leaks

Based on RSocket's battle-tested configuration:

- Add maxWebSocketListeners config option (default: 20)
  - 8 base WS events + 10 dynamic listeners + 2 buffer slots
- Add maxSocketClientListeners config option (default: 50)
- Replace dangerous setMaxListeners(0) with configurable limits
- Add warning log if user explicitly sets limit to 0

BREAKING: Previous behavior used setMaxListeners(0) which removed
all limits. Now defaults to safe limits but can be overridden via config.

src/Types/Socket.ts

@@ -165,4 +165,19 @@ export type SocketConfig = {
 
 	/** Circuit breaker configuration for message operations */
 	messageCircuitBreaker?: Partial<CircuitBreakerOptions>
+
+	// === Listener Limits (Memory Leak Prevention) ===
+
+	/**
+	 * Max WebSocket event listeners (default: 20)
+	 * Calculated as: 8 base WS events + 10 dynamic listeners + 2 buffer slots
+	 * WARNING: Setting to 0 disables limit and allows potential memory leaks!
+	 */
+	maxWebSocketListeners?: number
+
+	/**
+	 * Max SocketClient event listeners (default: 50)
+	 * WARNING: Setting to 0 disables limit and allows potential memory leaks!
+	 */
+	maxSocketClientListeners?: number
 }