Add persisted column reordering, positional alignment, animated drag feedback, and resize cleanup for the download table. Keep row actions at the trailing edge, preserve RTL/LTR behavior, and include localized column controls and sidebar alignment fixes.
Prevent queue action clicks from triggering row double-clicks, preserve aria2/yt-dlp resumable sidecars during duplicate replacement, and make aria2 require resume instead of silently restarting.
Add a persisted, accessible Folders collapse control with reduced-motion animation and regression coverage for replacement sidecar handling.
Fixes#11Fixes#12Closes#13
Refs #14
Update yt-dlp to 2026.07.04 and refresh the bundled macOS runtime plus engine locks.
Route every non-media download through aria2 by removing the native HTTP fallback path, native GID handling, and the old direct-download harness.
Retry transient aria2 startup/RPC failures before failing, then show the real last error in the download row and Properties modal so Windows failures are diagnosable instead of silent.
Refresh docs and tests around the aria2-only file-download contract, and advance the Firefox extension submodule to its published wording cleanup.
- Update 'fetch_metadata' to detect 'Accept-Ranges' HTTP header
- Persist 'resumable' flag in DownloadItem across backend and frontend
- Add confirmation dialog when pausing non-resumable downloads (single and bulk actions)
- Improve UI for start/pause/options buttons by adopting the application accent color on hover
- Ensure `initDB` sorts active items by `queuePosition` before dispatching to preserve expected backend execution order on startup.
- Update `resumeDownload` to explicitly move items to the end of the queue visually by assigning a new max `queuePosition`, synchronizing frontend representation with backend queue behavior.
- Change `queuePosition` calculations to use `Math.max` via `reduce` rather than array `.length`, preventing duplicate queue position assignments upon deletions and avoiding call stack limit exceptions for massive queues.
- Modify `DownloadTable.tsx` sorting to enforce active downloads appearing at the top of the queue view, deferring to `queuePosition` only for pending items.
- Exclude active items from `moveInQueue` logic and UI to prevent visual corruption and silent queue scrambling.
- Use `e.detail === 2` for double clicks in `DownloadTable.tsx`
- Add `user-select: none` to list items in `index.css`
- Delete existing assets before enqueueing in `redownload` action
- Remove redundant `onDoubleClick` props from `DownloadItem.tsx`
- Fix 'Show in finder' for unfinished entries to open destination folder
- Add 'Add to queue' submenu for unfinished items
- Support Shift/Cmd modifiers for multi-selection in download list
- Implement mass-action context menu for multi-selected downloads
- Enhance DeleteConfirmationModal to handle mass deletions gracefully
- Add --status-queued and --status-retrying CSS vars to all theme blocks
- Add .download-status-queued/.download-status-retrying CSS classes
- Add .download-progress-fill.queued/.retrying with pulse animation for retrying
- Wire retrying status into hover action buttons and context menu (pause/resume/redownload)
- Show 'Processing…'/'Muxing…' text in speed/ETA columns during processing state
- Fix light theme: add missing --status-* vars to :root block
This commit replaces the frontend-imperative download dispatcher with a centralized backend `QueueManager`. It acts as the sole concurrency gatekeeper using a single `tokio::sync::Semaphore` across all download paths (aria2 RPC, native HTTP, yt-dlp media).
Backend Changes:
- **queue**: Added `QueueManager` to manage an ordered `VecDeque` of tasks, semaphore permits, and retirement debt (CAS resize).
- **commands**: Replaced direct start commands with `enqueue_download`, `enqueue_many`, `move_in_queue`, and `remove_from_queue`.
- **ipc**: Exported `DownloadStateEvent` and `QueueDirection` to the frontend.
- **tests**: Added 11 integration tests covering idle-parking, idempotent releases, CAS underflow prevention, and gid-completion races.
Frontend Changes:
- **store**: Made `useDownloadStore` reactive to the backend via the `download-state` event.
- **store**: Removed `processQueue` and introduced `pendingOrder` to track the accurate sequence of queued items.
- **ui**: Updated `DownloadItem` with queue visuals (clock icon, position badge).
- **ui**: Added Move Up/Down controls to interact with the backend queue reordering API.
NimBold