feat: support define tags in tool yaml (#4763)

api/core/tools/provider/builtin/duckduckgo/duckduckgo.py

@@ -1,4 +1,3 @@
-from core.tools.entities.values import ToolLabelEnum
 from core.tools.errors import ToolProviderCredentialValidationError
 from core.tools.provider.builtin.duckduckgo.tools.duckduckgo_search import DuckDuckGoSearchTool
 from core.tools.provider.builtin_tool_provider import BuiltinToolProviderController
@@ -19,8 +18,4 @@ class DuckDuckGoProvider(BuiltinToolProviderController):
             )
         except Exception as e:
             raise ToolProviderCredentialValidationError(str(e))
-        
-    def _get_tool_labels(self) -> list[ToolLabelEnum]:
-        return [
-            ToolLabelEnum.SEARCH
-        ]
+        

api/core/tools/provider/builtin/duckduckgo/duckduckgo.yaml

@@ -8,3 +8,5 @@ identity:
     en_US: A privacy-focused search engine.
     zh_Hans: 一个注重隐私的搜索引擎。
   icon: icon.svg
+  tags:
+    - search