Merge upstream/master into develop

Sync upstream changes from perfect-panel/server

  Includes updates from v1.0.1 to v1.2.5:
  - Currency configuration support
  - Subscribe improvements (short token, inventory check, etc.)
  - Node management enhancements
  - Database migrations
  - Bug fixes and optimizations

internal/logic/admin/system/getNodeConfigLogic.go

@@ -3,6 +3,7 @@ package system
 import (
 	"context"
 	"encoding/json"
+
 	"github.com/perfect-panel/server/internal/config"
 	"github.com/perfect-panel/server/internal/svc"
 	"github.com/perfect-panel/server/internal/types"