feat(kiro): Add Kiro OAuth login entry and auth file filter in Web UI

为Kiro供应商添加WEB UI OAuth登录入口和认证文件过滤器

## Changes / 更改内容

### Frontend / 前端 (management.html)
- Add Kiro OAuth card UI with support for AWS Builder ID, Google, and GitHub login methods
- 添加Kiro OAuth卡片UI，支持AWS Builder ID、Google和GitHub三种登录方式
- Add i18n translations for Kiro OAuth (Chinese and English)
- 添加Kiro OAuth的中英文国际化翻译
- Add Kiro filter button in auth files management page
- 在认证文件管理页面添加Kiro过滤按钮
- Implement JavaScript methods: startKiroOAuth(), openKiroLink(), copyKiroLink(), copyKiroDeviceCode(), startKiroOAuthPolling(), resetKiroOAuthUI()
- 实现JavaScript方法：startKiroOAuth()、openKiroLink()、copyKiroLink()、copyKiroDeviceCode()、startKiroOAuthPolling()、resetKiroOAuthUI()

### Backend / 后端
- Add /kiro-auth-url endpoint for Kiro OAuth authentication (auth_files.go)
- 添加/kiro-auth-url端点用于Kiro OAuth认证 (auth_files.go)
- Fix GetAuthStatus() to correctly parse device_code and auth_url status
- 修复GetAuthStatus()以正确解析device_code和auth_url状态
- Change status delimiter from ':' to '|' to avoid URL parsing issues
- 将状态分隔符从':'改为'|'以避免URL解析问题
- Export CreateToken method in social_auth.go
- 在social_auth.go中导出CreateToken方法
- Register Kiro OAuth routes in server.go
- 在server.go中注册Kiro OAuth路由

## Files Modified / 修改的文件
- management.html
- internal/api/handlers/management/auth_files.go
- internal/api/server.go
- internal/auth/kiro/social_auth.go

internal/util/proxy.go

@@ -8,7 +8,6 @@ import (
 	"net"
 	"net/http"
 	"net/url"
-	"time"
 
 	"github.com/router-for-me/CLIProxyAPI/v6/sdk/config"
 	log "github.com/sirupsen/logrus"
@@ -37,25 +36,15 @@ func SetProxy(cfg *config.SDKConfig, httpClient *http.Client) *http.Client {
 				log.Errorf("create SOCKS5 dialer failed: %v", errSOCKS5)
 				return httpClient
 			}
-			// Set up a custom transport using the SOCKS5 dialer with optimized connection pooling
+			// Set up a custom transport using the SOCKS5 dialer.
 			transport = &http.Transport{
 				DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
 					return dialer.Dial(network, addr)
 				},
-				MaxIdleConns:        100,
-				MaxIdleConnsPerHost: 20, // Increased from default 2 to support more concurrent users
-				MaxConnsPerHost:     0, // No limit on max concurrent connections per host
-				IdleConnTimeout:     90 * time.Second,
 			}
 		} else if proxyURL.Scheme == "http" || proxyURL.Scheme == "https" {
-			// Configure HTTP or HTTPS proxy with optimized connection pooling
-			transport = &http.Transport{
-				Proxy:               http.ProxyURL(proxyURL),
-				MaxIdleConns:        100,
-				MaxIdleConnsPerHost: 20, // Increased from default 2 to support more concurrent users
-				MaxConnsPerHost:     0, // No limit on max concurrent connections per host
-				IdleConnTimeout:     90 * time.Second,
-			}
+			// Configure HTTP or HTTPS proxy.
+			transport = &http.Transport{Proxy: http.ProxyURL(proxyURL)}
 		}
 	}
 	// If a new transport was created, apply it to the HTTP client.