feat: Implement CodexAuth proxy pool management with a new frontend configuration page and a dedicated backend service for API, database, and proxy testing.

backend/internal/api/codex_proxy.go

@@ -7,6 +7,7 @@ import (
 	"strings"
 
 	"codex-pool/internal/database"
+	"codex-pool/internal/proxyutil"
 )
 
 // HandleCodexProxies 处理代理池请求
@@ -15,6 +16,10 @@ func HandleCodexProxies(w http.ResponseWriter, r *http.Request) {
 	case http.MethodGet:
 		listCodexProxies(w, r)
 	case http.MethodPost:
+		if strings.HasSuffix(r.URL.Path, "/test") {
+			testCodexProxy(w, r)
+			return
+		}
 		addCodexProxy(w, r)
 	case http.MethodDelete:
 		deleteCodexProxy(w, r)
@@ -170,3 +175,56 @@ func toggleCodexProxy(w http.ResponseWriter, r *http.Request) {
 
 	Success(w, map[string]string{"message": "状态已切换"})
 }
+
+// testCodexProxy 测试代理连通性
+func testCodexProxy(w http.ResponseWriter, r *http.Request) {
+	idStr := r.URL.Query().Get("id")
+	if idStr == "" {
+		Error(w, http.StatusBadRequest, "缺少代理 ID")
+		return
+	}
+
+	id, err := strconv.ParseInt(idStr, 10, 64)
+	if err != nil {
+		Error(w, http.StatusBadRequest, "无效的代理 ID")
+		return
+	}
+
+	// 获取代理详情
+	proxies, err := database.Instance.GetCodexProxies()
+	if err != nil {
+		Error(w, http.StatusInternalServerError, "获取代理失败")
+		return
+	}
+
+	var targetProxy *database.CodexProxy
+	for _, p := range proxies {
+		if p.ID == id {
+			targetProxy = &p
+			break
+		}
+	}
+
+	if targetProxy == nil {
+		Error(w, http.StatusNotFound, "未找到代理")
+		return
+	}
+
+	// 执行测试 (异步执行以防前端超时，但用户想要同步结果，所以这里同步执行)
+	// 因为是在管理后台点击，15s 超时是可以接受的
+	result, err := proxyutil.TestProxy(targetProxy.ProxyURL)
+	if err != nil {
+		database.Instance.UpdateCodexProxyTestResult(id, "", false)
+		Error(w, http.StatusInternalServerError, "测试过程出错: "+err.Error())
+		return
+	}
+
+	// 更新数据库
+	err = database.Instance.UpdateCodexProxyTestResult(id, result.Location, result.Success)
+	if err != nil {
+		Error(w, http.StatusInternalServerError, "更新测试结果失败")
+		return
+	}
+
+	Success(w, result)
+}