- Backend: new `rename_folder` command (updates display name only, not path)
and `update_folder_path` command (rewrites image paths in DB before reindexing
so thumbnails/embeddings are not regenerated unnecessarily)
- DB: `rename_folder` and `update_folder_path` helpers; `scan_error` column on
folders table to surface indexing failures without silently dropping images
- Store: `renameFolder` and `updateFolderPath` actions
- Sidebar: right-click context menu on each folder row (Reindex, Rename, Locate
Folder, Remove from app); inline rename input on Enter/Escape/blur; missing-
folder recovery banner with Locate/Remove; hover icon buttons (reindex + remove
with Confirm/Cancel) preserved alongside the context menu
LyAhn
4e5923ba84