This commit introduces a new gallery feature that allows you to mark images
in your user data folder and view them in a dedicated gallery page.
Key changes:
Backend (`app/user_manager.py`):
- Added a `GALLERY_SUFFIX` constant (`.gallery`).
- Implemented `toggle_gallery_status` to add/remove the gallery suffix from
filenames (e.g., `image.png` <-> `image.gallery.png`).
- Added a POST route `/userdata/{file}/gallery` to toggle an image's gallery
status.
- Implemented `list_gallery_files` to retrieve all images marked for the
gallery.
- Added a GET route `/gallery` to list gallery items for you.
Frontend:
- Created `web/gallery.html` as the main page for the gallery view.
- Created `web/css/gallery.css` for basic styling of the gallery.
- Created `web/scripts/gallery.js` to fetch and display gallery items,
allowing you to remove items from the gallery.
- Created `web/scripts/gallery_integration.js` to dynamically add a "Gallery"
button/link to the main application UI, which navigates to `gallery.html`.
- Updated `web/index.html` to include the gallery integration script.
Tests (`tests-unit/app_test/user_manager_gallery_routes_test.py`):
- Added comprehensive unit tests for the new backend routes, covering:
- Listing gallery items (empty, single, multiple, subdirectories).
- Toggling gallery status (add, remove, file not found, invalid params).
- Correct filename transformations and path handling.
