- Extract common drawer styles into new `drawers.css`
- Refactor `ServerDrawer` and `RendererDrawer` to use shared `.app-drawer` class
- Update routing: replace `/debug/api-dashboard` with unified `/debug` route pointing to new `DebugView`
- Add debug tools grid view (`DebugView.vue`) with icons and navigation
- Refactor `PlayListManager` styles to use CSS variables for consistency
- Update font sizing: replace global zoom with base `15px` font size in `main.css`
- Improve lazy metadata fallback logic in Rust API
