Changelog¶

UI: Made the clear-history buttons in the configuration panel compact and inline with labels.
- Added a small icon button style (.icon-btn--sm) and laid out fields as a 3‑column grid (Label | Clear | Control).
- Ensures better readability and spacing in both Light and Dark themes while keeping buttons accessible.
Documentation: Polished README.
- Documented strict offline asset loading (no CDN fallback), offline checklist, and troubleshooting.
- Added keyboard shortcut notes (Ctrl/Cmd+Shift+C), synchronized time axis mention, and clear‑history tips.
Offline assets: Vendoring and server fixes (from prior passes) are now stable.
- Local Tabler webfont assets are referenced from web/vendor/... paths only.
- Server serves correct MIME types and avoids SPA fallback for asset requests.

Server: Exported appHandler and refined routing.
Tests: Added coverage for content types, SPA vs 404, and traversal protection.
Vendoring: Robust Tabler webfont vendoring script and verification task.
UI/UX: Global config toggle button, keyboard shortcut, synchronized time axis, spinner during file load, persistent tab titles, and improved Light/Dark theme contrast.