feat: Implement account pool monitoring and management dashboard with S2A integration and add a new upload page.

backend/internal/api/team_process.go

@@ -855,8 +855,14 @@ func processSingleTeam(idx int, req TeamProcessRequest) (result TeamProcessResul
 				return false
 			}
 
-			// 注册
-			_, err := register.APIRegister(currentEmail, currentPassword, name, birthdate, req.Proxy, memberLogPrefix)
+			// 注册 - 从代理池获取随机代理
+			regProxy := req.Proxy
+			if database.Instance != nil {
+				if poolProxy, poolErr := database.Instance.GetRandomCodexProxy(); poolErr == nil && poolProxy != "" {
+					regProxy = poolProxy
+				}
+			}
+			_, err := register.APIRegister(currentEmail, currentPassword, name, birthdate, regProxy, memberLogPrefix)
 			if err != nil {
 				logger.Error(fmt.Sprintf("%s [注册失败] %v", memberLogPrefix, err), currentEmail, "team")
 				continue