ux(storage): hide 'Eltávolítás a listából' on wizard-enrolled drives

List-removal only deletes the registry entry — it's the undo of a
manual path add. On an enrolled drive (/mnt/felhom-drives/) it leaves a
de-registered-but-still-bound limbo nobody wants; the real lifecycle
there is Biztonságos leválasztás / Végleges leszerelés. New
StoragePathView.IsEnrolled gates the button; manual paths keep it; the
decommissioned-branch removal (final cleanup) is unchanged. Endpoint
untouched.

controller/internal/web/handlers.go

@@ -109,6 +109,7 @@ type StoragePathView struct {
 	StoppedApps     []string // stacks auto-stopped due to disconnect (for restart UI)
 	MigratedToLabel string   // label of the drive data was migrated to
 	HasOtherPaths   bool     // true if other connected non-decommissioned paths exist
+	IsEnrolled      bool     // enrolled via the wizard (stable /mnt/felhom-drives/ path) — lifecycle is disconnect/decommission, not list-removal
 }
 
 func (s *Server) baseData(page, title string) map[string]interface{} {
@@ -964,6 +965,7 @@ func (s *Server) storagePageData() map[string]interface{} {
 			StoragePath:   sp,
 			StoppedApps:   sp.StoppedStacks,
 			HasOtherPaths: connectedCount > 1,
+			IsEnrolled:    strings.HasPrefix(sp.Path, "/mnt/felhom-drives/"),
 		}
 		if sp.Disconnected {
 			// Skip I/O calls on disconnected drives — they'd hang or fail