- ui/sheet.tsx Sheet/ConfirmSheet replace the centred Modal, SweetAlert confirms, DialogView overlays, the reader Panel, the shelf settings floating card, the two media dialogs and Mantine Modal.
- Phones: bottom sheet. Wide windows: right-edge drawer; compact sheets (confirm, prompt, pick) open next to the tap or focused control.
- One set of exits (close, Escape, backdrop), 关闭 label, focus starts on 取消, danger confirms.
- Remove sweetalert2 and the unused @mantine/notifications.
- Remove the 来源与刮削 media settings panel and its entries in 我的 and 影音设置; TMDB and MusicBrainz stay configurable in 系统设置 > 服务配置.
- docs/ui.md 3.7 describes the rule; tests and review scripts follow the new markup.
Add book information dialogs and compact toolbar actions with source provenance. Reuse Streamable HTTP for alternative discovery and preserve cached text when a forced refresh fails.
Route login, shelf, library, file operations, reading, sources and extension feedback through one compact themed notification host. Keep native modal feedback in the top layer, escape remote text, update progress in place and let reading controls receive clicks beneath message text. Cover lifecycle, error handling and layout with unit and Chromium checks.
hectorqin