fix: 修复聊天系统编译错误

- 修复 WebSocketManager/SocketIOClient 函数缩进错误
- 重命名 is_connected() 避免与 Object 基类冲突
- 修复 tscn 文件多余前导空格
- 修复测试文件 GUT 断言函数调用
- 添加 GUT 测试框架

_Core/managers/ChatManager.gd

@@ -23,8 +23,6 @@ extends Node
 # - 所有聊天事件通过 EventSystem 广播
 # ============================================================================
 
-class_name ChatManager
-
 # ============================================================================
 # 信号定义 (Signal Up)
 # ============================================================================
@@ -51,8 +49,8 @@ signal chat_error_occurred(error_code: String, message: String)
 
 # 聊天连接状态变化信号
 # 参数:
-#   state: WebSocketManager.ConnectionState - 连接状态
-signal chat_connection_state_changed(state: WebSocketManager.ConnectionState)
+#   state: int - 连接状态（0=DISCONNECTED, 1=CONNECTING, 2=CONNECTED, 3=RECONNECTING, 4=ERROR）
+signal chat_connection_state_changed(state: int)
 
 # 位置更新成功信号
 # 参数:
@@ -178,7 +176,7 @@ func get_game_token() -> String:
 
 # 连接到聊天服务器
 func connect_to_chat_server() -> void:
-	if _websocket_manager.is_connected():
+	if _websocket_manager.is_websocket_connected():
 		push_warning("聊天服务器已连接")
 		return
 
@@ -193,17 +191,17 @@ func disconnect_from_chat_server() -> void:
 	if _is_logged_in:
 		var logout_data := {"type": "logout"}
 		_socket_client.emit("logout", logout_data)
-		_is_logged_in = False
+		_is_logged_in = false
 
 	# 断开连接
-	_websocket_manager.disconnect()
+	_websocket_manager.disconnect_websocket()
 
 # 检查是否已连接
 #
 # 返回值:
 #   bool - 是否已连接
-func is_connected() -> bool:
-	return _websocket_manager.is_connected()
+func is_chat_connected() -> bool:
+	return _websocket_manager.is_websocket_connected()
 
 # ============================================================================
 # 公共 API - 聊天操作
@@ -219,7 +217,7 @@ func is_connected() -> bool:
 #   ChatManager.send_chat_message("Hello, world!", "local")
 func send_chat_message(content: String, scope: String = "local") -> void:
 	# 检查连接状态
-	if not _websocket_manager.is_connected():
+	if not _websocket_manager.is_websocket_connected():
 		_handle_error("NOT_CONNECTED", "未连接到聊天服务器")
 		return
 
@@ -272,7 +270,7 @@ func send_chat_message(content: String, scope: String = "local") -> void:
 # 使用示例:
 #   ChatManager.update_player_position(150.0, 200.0, "novice_village")
 func update_player_position(x: float, y: float, map_id: String) -> void:
-	if not _websocket_manager.is_connected():
+	if not _websocket_manager.is_websocket_connected():
 		return
 
 	var position_data := {
@@ -297,10 +295,9 @@ func can_send_message() -> bool:
 	var current_time := Time.get_unix_time_from_system()
 
 	# 清理过期的时间戳
-	_message_timestamps = _message_timestamps.filter(
-		func(timestamp: float) -> bool:
-			return current_time - timestamp < RATE_LIMIT_WINDOW
-	)
+	var filter_func := func(timestamp: float) -> bool:
+		return current_time - timestamp < RATE_LIMIT_WINDOW
+	_message_timestamps = _message_timestamps.filter(filter_func)
 
 	# 检查数量
 	return _message_timestamps.size() < RATE_LIMIT_MESSAGES
@@ -458,11 +455,12 @@ func _on_socket_connected() -> void:
 # Socket 连接断开
 func _on_socket_disconnected(_clean_close: bool) -> void:
 	print("🔌 ChatManager: Socket 连接断开")
-	_is_logged_in = False
+	_is_logged_in = false
 
 # 连接状态变化
-func _on_connection_state_changed(state: WebSocketManager.ConnectionState) -> void:
-	print("📡 ChatManager: 连接状态变化 - ", WebSocketManager.ConnectionState.keys()[state])
+func _on_connection_state_changed(state: int) -> void:
+	var state_names := ["DISCONNECTED", "CONNECTING", "CONNECTED", "RECONNECTING", "ERROR"]
+	print("📡 ChatManager: 连接状态变化 - ", state_names[state])
 
 	# 发射信号
 	chat_connection_state_changed.emit(state)
@@ -496,7 +494,7 @@ func _on_socket_event_received(event_name: String, data: Dictionary) -> void:
 func _handle_login_success(data: Dictionary) -> void:
 	print("✅ ChatManager: 登录成功")
 
-	_is_logged_in = True
+	_is_logged_in = true
 	_current_username = data.get("username", "")
 	_current_map = data.get("currentMap", "")
 
@@ -590,8 +588,8 @@ func _on_socket_error(error: String) -> void:
 # 发送登录消息
 func _send_login_message() -> void:
 	if _game_token.is_empty():
-		push_error("无法获取游戏 token，请先调用 set_game_token() 设置 token")
-		_handle_error("AUTH_FAILED", "无法获取游戏 token，请先设置 token")
+		push_error("无法获取 access token，请确保已登录")
+		_handle_error("AUTH_FAILED", "无法获取 access token，请先登录")
 		return
 
 	var login_data := {
@@ -600,14 +598,14 @@ func _send_login_message() -> void:
 	}
 
 	_socket_client.emit("login", login_data)
-	print("📤 发送登录消息")
+	print("📤 发送登录消息（使用 access token）")
 
 # 处理错误
 func _handle_error(error_code: String, error_message: String) -> void:
 	print("❌ ChatManager 错误: [", error_code, "] ", error_message)
 
 	# 获取用户友好的错误消息
-	var user_message := CHAT_ERROR_MESSAGES.get(error_code, error_message)
+	var user_message: String = CHAT_ERROR_MESSAGES.get(error_code, error_message) as String
 
 	# 发射信号
 	chat_error_occurred.emit(error_code, user_message)
@@ -620,7 +618,7 @@ func _handle_error(error_code: String, error_message: String) -> void:
 
 	# 特殊处理认证失败
 	if error_code == "AUTH_FAILED" or error_code == "SESSION_EXPIRED":
-		_is_logged_in = False
+		_is_logged_in = false
 		EventSystem.emit_event(EventNames.CHAT_LOGIN_FAILED, {
 			"error_code": error_code
 		})
@@ -633,11 +631,11 @@ func _record_message_timestamp() -> void:
 # 添加消息到当前会话历史
 func _add_message_to_history(message: Dictionary) -> void:
 	_message_history.append(message)
-
+	
 	# 更新最旧消息时间戳（用于历史消息加载）
 	if _oldest_message_timestamp == 0.0 or message.timestamp < _oldest_message_timestamp:
 		_oldest_message_timestamp = message.timestamp
-
+	
 	# 限制当前会话消息数量（超过后删除最旧的）
 	if _message_history.size() > MAX_SESSION_MESSAGES:
 		_message_history.pop_front()