fix(e2e): 修复对话框关闭问题，完善 E2E 测试

- 修复 TDesign Dialog onConfirm 不自动关闭的问题
- 使用 useEffect 监听 mutation 状态自动关闭对话框
- 测试使用 waitForResponse 等待 API 响应
- 添加 clearDatabase 函数确保测试隔离
- 归档 e2e-real-backend 变更到 archive/2026-04-22
- 同步 e2e-testing spec 到主 specs

frontend/src/pages/Providers/index.tsx

@@ -1,4 +1,4 @@
-import { useState } from 'react';
+import { useState, useEffect } from 'react';
 import type { Provider, Model, UpdateProviderInput, UpdateModelInput } from '@/types';
 import { useProviders, useCreateProvider, useUpdateProvider, useDeleteProvider } from '@/hooks/useProviders';
 import { useCreateModel, useUpdateModel } from '@/hooks/useModels';
@@ -20,6 +20,18 @@ export function ProvidersPage() {
   const [editingModel, setEditingModel] = useState<Model | undefined>();
   const [modelFormProviderId, setModelFormProviderId] = useState('');
 
+  useEffect(() => {
+    if ((createProvider.isSuccess || updateProvider.isSuccess) && providerFormOpen) {
+      setProviderFormOpen(false);
+    }
+  }, [createProvider.isSuccess, updateProvider.isSuccess, providerFormOpen]);
+
+  useEffect(() => {
+    if ((createModel.isSuccess || updateModel.isSuccess) && modelFormOpen) {
+      setModelFormOpen(false);
+    }
+  }, [createModel.isSuccess, updateModel.isSuccess, modelFormOpen]);
+
   return (
     <div>
       <ProviderTable
@@ -57,14 +69,9 @@ export function ProvidersPage() {
             if (values.apiKey) input.apiKey = values.apiKey;
             if (values.baseUrl !== editingProvider.baseUrl) input.baseUrl = values.baseUrl;
             if (values.enabled !== editingProvider.enabled) input.enabled = values.enabled;
-            updateProvider.mutate(
-              { id: editingProvider.id, input },
-              { onSuccess: () => setProviderFormOpen(false) },
-            );
+            updateProvider.mutate({ id: editingProvider.id, input });
           } else {
-            createProvider.mutate(values, {
-              onSuccess: () => setProviderFormOpen(false),
-            });
+            createProvider.mutate(values);
           }
         }}
         onCancel={() => setProviderFormOpen(false)}
@@ -82,14 +89,9 @@ export function ProvidersPage() {
             if (values.providerId !== editingModel.providerId) input.providerId = values.providerId;
             if (values.modelName !== editingModel.modelName) input.modelName = values.modelName;
             if (values.enabled !== editingModel.enabled) input.enabled = values.enabled;
-            updateModel.mutate(
-              { id: editingModel.id, input },
-              { onSuccess: () => setModelFormOpen(false) },
-            );
+            updateModel.mutate({ id: editingModel.id, input });
           } else {
-            createModel.mutate(values, {
-              onSuccess: () => setModelFormOpen(false),
-            });
+            createModel.mutate(values);
           }
         }}
         onCancel={() => setModelFormOpen(false)}