refactor: update skill and MCP tool labels for consistency in English and Chinese translations

web/messages/en-US.json

@@ -2272,8 +2272,8 @@
     "knowledge": "Knowledge Base",
     "aiConfigs": "Model Settings",
     "aiAgents": "AI Agents",
-    "skillDefinition": "Skill Orchestration",
-    "mcp": "Tool Debugging",
+    "skillDefinition": "Skills",
+    "mcp": "MCP tools",
     "agentRunLogs": "Run Logs",
     "system": "System",
     "users": "Users",

web/messages/zh-CN.json

@@ -2270,10 +2270,10 @@
     "channels": "接入渠道",
     "aiCapabilities": "AI能力",
     "knowledge": "知识库",
-    "aiConfigs": "模型配置",
-    "aiAgents": "智能客服",
-    "skillDefinition": "能力编排",
-    "mcp": "工具调试",
+    "aiConfigs": "AI模型",
+    "aiAgents": "AI Agents",
+    "skillDefinition": "Skills",
+    "mcp": "MCP tools",
     "agentRunLogs": "运行日志",
     "system": "系统管理",
     "users": "用户管理",