feat: Introduce advanced TLS client with browser fingerprinting and new backend modules for API processing, authentication, mail, and ChatGPT registration.

backend/internal/register/chatgpt.go

@@ -281,8 +281,27 @@ func Run(email, password, realName, birthdate, proxy string) (*ChatGPTReg, error
 	return APIRegister(email, password, realName, birthdate, proxy, "[RegTest]")
 }
 
-// APIRegister 使用 API 完成注册 (集成 403 重试机制)
+// APIRegister 使用 API 完成注册 (集成 403 重试机制，全局 5 分钟超时)
 func APIRegister(email, password, realName, birthdate, proxy string, logPrefix string) (*ChatGPTReg, error) {
+	type regResult struct {
+		reg *ChatGPTReg
+		err error
+	}
+	resultCh := make(chan regResult, 1)
+	go func() {
+		reg, err := apiRegisterInternal(email, password, realName, birthdate, proxy, logPrefix)
+		resultCh <- regResult{reg, err}
+	}()
+	select {
+	case r := <-resultCh:
+		return r.reg, r.err
+	case <-time.After(5 * time.Minute):
+		return nil, fmt.Errorf("注册超时 (5分钟)")
+	}
+}
+
+// apiRegisterInternal APIRegister 的内部实现
+func apiRegisterInternal(email, password, realName, birthdate, proxy string, logPrefix string) (*ChatGPTReg, error) {
 	var reg *ChatGPTReg
 	var lastErr error