fix(trigger): enhance OAuth client response in TriggerOAuthClientManageApi

- Integrated TriggerManager to retrieve the trigger provider's OAuth client schema.
- Updated the return structure to include the redirect URI and OAuth client schema for improved API response clarity.

api/controllers/console/workspace/trigger_providers.py

@@ -13,6 +13,7 @@ from core.plugin.entities.plugin import TriggerProviderID
 from core.plugin.entities.plugin_daemon import CredentialType
 from core.plugin.impl.oauth import OAuthHandler
 from core.trigger.entities.entities import SubscriptionBuilderUpdater
+from core.trigger.trigger_manager import TriggerManager
 from extensions.ext_database import db
 from libs.login import current_user, login_required
 from models.account import Account
@@ -445,13 +446,15 @@ class TriggerOAuthClientManageApi(Resource):
                 tenant_id=user.current_tenant_id,
                 provider_id=provider_id,
             )
-
-            return {
+            provider_controller = TriggerManager.get_trigger_provider(user.current_tenant_id, provider_id)
+            return jsonable_encoder({
                 "configured": bool(custom_params or system_client),
+                "oauth_client_schema": provider_controller.get_oauth_client_schema(),
                 "custom_configured": bool(custom_params),
                 "custom_enabled": is_custom_enabled,
+                "redirect_uri": f"{dify_config.CONSOLE_API_URL}/console/api/oauth/plugin/{provider}/trigger/callback",
                 "params": custom_params if custom_params else {},
-            }
+            })
 
         except Exception as e:
             logger.exception("Error getting OAuth client", exc_info=e)