v0.8.99-pre.1

https://github.com/chen08209/FlClash/actions/runs/35961653164

Features
• Page bars are roomier, and filled buttons and floating action buttons get an elastic press
• Custom overrides name the exact problem in each proxy group and rule, and refuse to save a group the core would reject
• A sidebar and floating dock replace the navigation rail, sheets snap between half and full height, record lists share a new row layout and search, proxies can hide timed-out nodes, the dashboard gets feed and outbound mode cards, and the app uses less battery while hidden
• Basic and app settings merge into one General page, hotkeys cover mode switching, delay test, profile update and exit, and the tray shows each item's hotkey, node delays and a delay test entry
• Override scripts can be imported from a URL or file, updated from their URL, and reordered