Part A: shared app_list_row partial — ONE row grammar on four surfaces (v0.126.0)

- templates/app_row.html: app_list_row/app_list_row_end (layout_start/_end idiom) — icon+name
  (+optional secondary) left, caller action block right; compact 44px row; logoURL→PNG→
  optional FallbackIcon→hidden onerror chain
- applied: Távoli mentés toggle list, Visszaállítás restore-to-verify + .fab lists, dashboard
  Telepített alkalmazások (state edge + data-href preserved); Alkalmazások collapsed headers
  ALIGNED (icon+name left, status dot moved right before chevron; expander untouched)
- funcmap: dict + appHref; OffboxAppRow/AppBackupRow gain Slug
- style.css: .app-row family; stack-card/stack-info/stack-logo/stack-name/stack-desc/
  stack-actions rules retired (dashboard rows now shared); .app-backup-row-header matched
  to the shared row height
- scripts/app_row_dedup_gate.py: row markup single-sourced (red-proven: pasted old
  storage-path-item block → exit 1); render tests per surface (app_row_test.go)
- NO behavior change: toggle/download/expander actions byte-identical

controller/internal/web/handlers.go

@@ -730,6 +730,7 @@ func (s *Server) backupsRestoreHandler(w http.ResponseWriter, r *http.Request) {
 type OffboxAppRow struct {
 	Name        string
 	DisplayName string
+	Slug        string // catalog slug for the shared app-row icon (logoURL)
 	Enabled     bool
 }
 
@@ -747,7 +748,7 @@ func (s *Server) buildOffboxApps() []OffboxAppRow {
 		if dn == "" {
 			dn = st.Name
 		}
-		out = append(out, OffboxAppRow{Name: st.Name, DisplayName: dn, Enabled: s.settings.IsAppOffbox(st.Name)})
+		out = append(out, OffboxAppRow{Name: st.Name, DisplayName: dn, Slug: st.Meta.Slug, Enabled: s.settings.IsAppOffbox(st.Name)})
 	}
 	return out
 }
@@ -756,6 +757,7 @@ func (s *Server) buildOffboxApps() []OffboxAppRow {
 type AppBackupRow struct {
 	StackName   string
 	DisplayName string
+	Slug        string // catalog slug for the aligned header icon (logoURL)
 	Status      string // "green", "yellow", "red", "auto"
 	StatusText  string // short Hungarian tooltip
 
@@ -869,9 +871,17 @@ func (s *Server) buildAppBackupRows(status *backup.FullBackupStatus) []AppBackup
 		}
 		contents := strings.Join(parts, " + ")
 
+		slug := ""
+		if s.stackMgr != nil {
+			if st, ok := s.stackMgr.GetStack(app.StackName); ok {
+				slug = st.Meta.Slug
+			}
+		}
+
 		row := AppBackupRow{
 			StackName:         app.StackName,
 			DisplayName:       app.DisplayName,
+			Slug:              slug,
 			HasHDDData:        app.HasHDDData,
 			HasDB:             hasDB,
 			HasVolumeData:     app.HasVolumeData,