update:1.更新mcp插件功能，目前只支持remote调用

backend/app/schemas/mcp_plugin.py

@@ -0,0 +1,105 @@
+"""MCP插件Pydantic模式"""
+from pydantic import BaseModel, Field
+from typing import Optional, Dict, Any, List
+from datetime import datetime
+
+
+class MCPToolSchema(BaseModel):
+    """MCP工具定义"""
+    name: str
+    description: Optional[str] = None
+    inputSchema: Optional[Dict[str, Any]] = None
+    category: Optional[str] = None
+
+
+class MCPPluginBase(BaseModel):
+    """插件基础模式"""
+    plugin_name: str = Field(..., description="插件唯一标识")
+    display_name: Optional[str] = Field(None, description="显示名称")
+    description: Optional[str] = Field(None, description="插件描述")
+    plugin_type: str = Field(default="http", description="插件类型：http/stdio")
+    category: str = Field(default="general", description="分类")
+    sort_order: int = Field(default=0, description="排序顺序")
+
+
+class MCPPluginCreate(MCPPluginBase):
+    """创建插件"""
+    server_url: Optional[str] = Field(None, description="服务器URL（HTTP类型）")
+    command: Optional[str] = Field(None, description="启动命令（stdio类型）")
+    args: Optional[List[str]] = Field(None, description="命令参数")
+    env: Optional[Dict[str, str]] = Field(None, description="环境变量")
+    headers: Optional[Dict[str, str]] = Field(None, description="HTTP请求头")
+    config: Optional[Dict[str, Any]] = Field(None, description="插件特定配置")
+    enabled: bool = Field(default=True, description="是否启用")
+
+
+class MCPPluginSimpleCreate(BaseModel):
+    """简化的插件创建（通过标准MCP配置JSON）"""
+    config_json: str = Field(..., description="标准MCP配置JSON字符串")
+    enabled: bool = Field(default=True, description="是否启用")
+    category: str = Field(default="general", description="插件分类")
+
+
+class MCPPluginUpdate(BaseModel):
+    """更新插件"""
+    display_name: Optional[str] = None
+    description: Optional[str] = None
+    server_url: Optional[str] = None
+    command: Optional[str] = None
+    args: Optional[List[str]] = None
+    env: Optional[Dict[str, str]] = None
+    headers: Optional[Dict[str, str]] = None
+    config: Optional[Dict[str, Any]] = None
+    enabled: Optional[bool] = None
+    category: Optional[str] = None
+    sort_order: Optional[int] = None
+
+
+class MCPPluginResponse(BaseModel):
+    """插件响应 - 优化后只返回必要字段"""
+    id: str
+    plugin_name: str
+    display_name: str
+    description: Optional[str] = None
+    plugin_type: str
+    category: str
+    
+    # HTTP类型字段
+    server_url: Optional[str] = None
+    headers: Optional[Dict[str, str]] = None
+    
+    # Stdio类型字段
+    command: Optional[str] = None
+    args: Optional[List[str]] = None
+    env: Optional[Dict[str, str]] = None
+    
+    # 状态字段
+    enabled: bool
+    status: str
+    last_error: Optional[str] = None
+    last_test_at: Optional[datetime] = None
+    
+    # 时间戳
+    created_at: datetime
+
+    class Config:
+        from_attributes = True
+
+
+class MCPToolCall(BaseModel):
+    """工具调用请求"""
+    plugin_id: str = Field(..., description="插件ID")
+    tool_name: str = Field(..., description="工具名称")
+    arguments: Dict[str, Any] = Field(default_factory=dict, description="工具参数")
+
+
+class MCPTestResult(BaseModel):
+    """测试结果"""
+    success: bool
+    message: str
+    response_time_ms: Optional[float] = None
+    tools_count: Optional[int] = None
+    tools: Optional[List[MCPToolSchema]] = None
+    error: Optional[str] = None
+    error_type: Optional[str] = None
+    suggestions: Optional[List[str]] = None