Dockerfile and Proxmox community script both rebuild client/dist and copy
it into server/public at build time — committed artifacts were never used.
Replace with .gitkeep and add server/public/* to .gitignore.
WorkBox's NavigationRoute served the cached SPA shell on window.location.reload(),
meaning Pangolin/CF Access never saw the navigation and the app was left stuck
showing stale offline data. Unregistering the SW first lets the navigation reach
the network so the upstream proxy can run its auth flow.
Also rebuilds server/public with corrected sw.js (health excluded from
NetworkFirst, /oauth/ and /.well-known/ added to NavigationRoute denylist).