Backend:
- New /api/server/health endpoint returning server, paths, disk,
mods, steamcmd, and frontend status
- Health endpoint checks directory existence/writability, disk usage,
server binary, and frontend dist availability
Frontend:
- New Status page (route /status) with sections for Server, SteamCMD,
Mods, Frontend, Directories (with exists/writable badges), and
Disk Usage (with size formatting and used-percent coloring)
- Paths are clickable to copy and use start-truncation (ellipsis on
the left) with native hover tooltip
- Health API client integration with 10s auto-refresh
Misc:
- Update .gitignore and Makefile, minor Layout nav addition
- RenderModlistHTML: generates compatible preset HTML from a modlist
- GET /api/modlists/:id/export: returns downloadable .html file
- Export button on ModlistEditor page
- Skips local mods (no workshop ID), includes only Steam workshop mods
