[Chore/Refactor] Improve type annotations in models module (#25281)

Signed-off-by: -LAN- <laipz8200@outlook.com>
Co-authored-by: crazywoola <100913391+crazywoola@users.noreply.github.com>

api/core/tools/tool_manager.py

@@ -773,7 +773,7 @@ class ToolManager:
         if provider is None:
             raise ToolProviderNotFoundError(f"mcp provider {provider_id} not found")
 
-        controller = MCPToolProviderController._from_db(provider)
+        controller = MCPToolProviderController.from_db(provider)
 
         return controller
 
@@ -928,7 +928,7 @@ class ToolManager:
         tenant_id: str,
         provider_type: ToolProviderType,
         provider_id: str,
-    ) -> Union[str, dict]:
+    ) -> Union[str, dict[str, Any]]:
         """
         get the tool icon