* feat(frontend): add customizable favicon and corner logo with live preview
- Add app_logo and app_favicon config fields in config page
- Implement BrandLogo component with URL fallback to SVG logo
- Integrate BrandLogo into all layouts (admin, h5, h5-simple) and navbar
- Add real-time preview for favicon and logo in config page with error state
- Support both relative paths and full image URLs for branding assets
- Sync branding changes (app_name/app_logo/app_favicon) to site config on save
* fix(frontend): preserve tunnel node selection order
* fix(select): use useMemo for option label map to improve performance
ModalFooter used flex-col-reverse which caused buttons to display in
reverse order on mobile and potentially pushed cancel button out of
view. Changed to flex-wrap justify-end for consistent cross-platform
button display.
* fix(frontend): left-align announcement logo in homepage banner
* fix(frontend): keep multiselect panels floating and preserve summaries
* fix(frontend): rebalance config card header spacing
* fix(frontend): normalize formatting and fix multiselect modal behavior
* fix(frontend): polish batch actions and sharing page guidance
* fix(frontend): switch grouped forward view to full list
* fix(backend): switch diagnosis internet target to bing
* style(frontend): beautify forward group view list display
* style: remove 'x' suffix from traffic ratio input and center config alert
* fix(ui): expand exit node select upwards in modal
* style: fix vertical alignment of logo and title in announcement banner
sagit