fix(backend): sync user tunnel status and relax forward speedId permission check

- Return actual user_tunnel.status in admin permission list instead of hardcoded 1
- Allow non-admin users to update forwards when keeping the same speedId selection
- Add contract tests for user tunnel status mapping and forward permission edge case

Entire-Checkpoint: deb90fb942ee

go-backend/internal/http/handler/handler.go

@@ -571,7 +571,7 @@ func (h *Handler) userTunnelList(w http.ResponseWriter, r *http.Request) {
 			"userId":         t.UserID,
 			"tunnelId":       t.TunnelID,
 			"tunnelName":     t.TunnelName,
-			"status":         1,
+			"status":         t.Status,
 			"flow":           t.Flow,
 			"num":            t.Num,
 			"expTime":        t.ExpTime,

go-backend/internal/http/handler/mutations.go

@@ -1279,13 +1279,13 @@ func (h *Handler) forwardUpdate(w http.ResponseWriter, r *http.Request) {
 	if strategy == "" {
 		strategy = forward.Strategy
 	}
-	if actorRole != 0 {
-		if speedIDVal, ok := req["speedId"]; ok && speedIDVal != nil {
-			response.WriteJSON(w, response.Err(-1, "普通用户无法修改限速规则"))
-			return
-		}
+	rawSpeedID, hasSpeedID := req["speedId"]
+	requestedSpeedID := asAnyToInt64Ptr(rawSpeedID)
+	if actorRole != 0 && hasSpeedID && requestedSpeedID != nil && !sameSpeedLimitSelection(forward.SpeedID, requestedSpeedID) {
+		response.WriteJSON(w, response.Err(-1, "普通用户无法修改限速规则"))
+		return
 	}
-	speedID := asAnyToInt64Ptr(req["speedId"])
+	speedID := requestedSpeedID
 	speedID, err = h.normalizeSpeedLimitReference(speedID)
 	if err != nil {
 		response.WriteJSON(w, response.Err(-2, err.Error()))
@@ -3380,6 +3380,14 @@ func (h *Handler) normalizeSpeedLimitReference(speedID *int64) (*int64, error) {
 	return speedID, nil
 }
 
+func sameSpeedLimitSelection(current sql.NullInt64, requested *int64) bool {
+	if requested == nil {
+		return !current.Valid
+	}
+
+	return current.Valid && current.Int64 == *requested
+}
+
 func asAnySlice(v interface{}) []interface{} {
 	if v == nil {
 		return nil

go-backend/internal/store/model/model.go

@@ -573,6 +573,7 @@ type UserTunnelDetail struct {
 	UserID        int64
 	TunnelID      int64
 	TunnelName    string
+	Status        int
 	TunnelFlow    int
 	Flow          int64
 	InFlow        int64

go-backend/internal/store/repo/repository.go

@@ -447,7 +447,7 @@ func (r *Repository) GetUserPackageTunnels(userID int64) ([]model.UserTunnelDeta
 	}
 	var items []model.UserTunnelDetail
 	err := r.db.Model(&model.UserTunnel{}).
-		Select("user_tunnel.id, user_tunnel.user_id, user_tunnel.tunnel_id, tunnel.name AS tunnel_name, tunnel.flow AS tunnel_flow, user_tunnel.flow, user_tunnel.in_flow, user_tunnel.out_flow, user_tunnel.num, user_tunnel.flow_reset_time, user_tunnel.exp_time, user_tunnel.speed_id, speed_limit.name AS speed_limit, speed_limit.speed").
+		Select("user_tunnel.id, user_tunnel.user_id, user_tunnel.tunnel_id, tunnel.name AS tunnel_name, user_tunnel.status, tunnel.flow AS tunnel_flow, user_tunnel.flow, user_tunnel.in_flow, user_tunnel.out_flow, user_tunnel.num, user_tunnel.flow_reset_time, user_tunnel.exp_time, user_tunnel.speed_id, speed_limit.name AS speed_limit, speed_limit.speed").
 		Joins("LEFT JOIN tunnel ON tunnel.id = user_tunnel.tunnel_id").
 		Joins("LEFT JOIN speed_limit ON speed_limit.id = user_tunnel.speed_id").
 		Where("user_tunnel.user_id = ?", userID).