chore: 更新依赖、配置和代码生成

主要更新：
- 更新 go.mod/go.sum 依赖
- 重新生成 Ent ORM 代码
- 更新 Wire 依赖注入配置
- 添加 docker-compose.override.yml 到 .gitignore
- 更新 README 文档（Simple Mode 说明和已知问题）
- 清理调试日志
- 其他代码优化和格式修复

backend/internal/repository/account_repo_integration_test.go

@@ -135,12 +135,12 @@ func (s *AccountRepoSuite) TestListWithFilters() {
 			name: "filter_by_type",
 			setup: func(client *dbent.Client) {
 				mustCreateAccount(s.T(), client, &service.Account{Name: "t1", Type: service.AccountTypeOAuth})
-				mustCreateAccount(s.T(), client, &service.Account{Name: "t2", Type: service.AccountTypeAPIKey})
+				mustCreateAccount(s.T(), client, &service.Account{Name: "t2", Type: service.AccountTypeApiKey})
 			},
-			accType:   service.AccountTypeAPIKey,
+			accType:   service.AccountTypeApiKey,
 			wantCount: 1,
 			validate: func(accounts []service.Account) {
-				s.Require().Equal(service.AccountTypeAPIKey, accounts[0].Type)
+				s.Require().Equal(service.AccountTypeApiKey, accounts[0].Type)
 			},
 		},
 		{