feat：接入mcp，为模型提供图表信息

app/api/materials.py

@@ -5,15 +5,15 @@ from fastapi import APIRouter
 from app.common.response import ApiResponse, success_response
 from app.core.exceptions import BizException
 from app.resources.component import get_catalog_cache
-from app.schemas.component_resource import ComponentCatalog
+from app.resources.material_fields import frontend_catalog
 
 router = APIRouter(prefix="/materials", tags=["Material"])
 
 
 @router.get("")
-async def list_materials() -> ApiResponse[ComponentCatalog]:
-    # 直接返回启动时载入的内存缓存，不查库
+async def list_materials() -> ApiResponse[dict]:
+    # 直接使用启动时载入的内存缓存，不查库；属性面板 setters 由字段定义派生
     catalog = get_catalog_cache()
     if catalog is None:
         raise BizException(503, "物料目录尚未加载")
-    return success_response(catalog)
+    return success_response(frontend_catalog(catalog))