- Replace split 'Default Download Path' and 'All Categories Base' with a canonical baseDownloadFolder and categorySubfolders model
- Retain absolute category overrides only where required
- Update Add window to accurately reflect intended destination:
- Single URL: specific category path
- Multiple URLs: base folder with explanatory text
- Manual Browse override: selected folder
- Centralize path resolution logic shared by Rust backend and UI
- Add backendRegisteredIds and backendDispatchPromises for single dispatch enforcement
- Add detach_download_for_reconfigure to safely modify properties of active downloads
- Add applyProperties logic handling completed, failed, paused, and active queues
- Add extractValidDownloadUrls and fix multi-url paste handling
- Setup vitest and add useDownloadStore unit tests for backend registration lifecycle
- Strip password, cookies, and headers from download_queue before writing
to store.bin; secrets remain in-memory for the active session only.
- Move extension pairing token from PersistedSettings to the OS keychain,
rotating it on upgrade from versions that persisted it as plaintext.
- Add ignores_legacy_extension_pairing_token_field test to confirm serde
silently drops the old field so existing installs migrate cleanly.
- Document intentional retention of URLs (signed params are the download
source and cannot be redacted without breaking resume/retry).
- Reset items with 'downloading' or 'processing' status to 'queued'
before re-enqueue on startup to prevent phantom active state
- Include 'processing' status in recovery filter (was a zombie path)
- Remove redundant LazyStore('store.bin') from settingsStore.ts;
import shared instance from useDownloadStore.ts instead
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.
- Fix system proxy fetching logic in download queue
- Expand recognized file formats across Windows, Mac, and Linux
- Automatically assign matching category folder for new downloads
- Add backend command to instantly create category directories on bulk base path selection
- Fix state corruption on deleted queues in frontend
- Prevent concurrent dispatch of duplicate downloads
- Fix file paths when deleting native downloads
- Ensure pausing and resuming items persist state to database
- Remove duplicate IPC invocations for speed limits
- Stop PropertiesModal from resetting inputs during download progress
- Switch aria2 secret to use secure v4 UUID
- Fix SSRF vulnerability in fetch_metadata via DNS rebinding block
- Resolve race condition when reading media download logs
- Gracefully handle panics when acquiring prevent sleep lock
- Rate limit native downloads respecting global settings
- Enforce TLS certificate validation in backend requests
- refactor(backend): use tokio::sync::Mutex for DbState and update commands to async
- fix(backend): remove unconditional post-queue system action in scheduler
- refactor(backend): remove dead WebSocket aria2 progress loop
- fix(backend): use character count for deep link payload length check
- fix(backend): implement dynamic port fallback for extension server
- build(backend): apply macos codesigning step for release builds
- security(backend): add explicitly defined Content-Security-Policy
- fix(frontend): replace pause_download API call with remove_download for file cleanup
- fix(frontend): resolve bug ignoring 0% progress reporting
- fix(frontend): append instead of overwrite deep link URLs when Add Modal is open
- style(frontend): append standard .dark class for dark mode themes
- style(frontend): remove ghost row layout hack from download table
- build: decouple typescript binding generation from build step
NimBold