feat: Production source maps for bambu-printer-app

[synman]

Summary

Enable hidden source maps in Vite, capture locally via dockermake.sh, strip from Docker image.

Files to Change

1. vite.config.js — add sourcemap: 'hidden'
2. Dockerfile — strip .map files from final image
3. dockermake.sh — capture .map files locally before strip
4. .gitignore — add *.map

Also

• Node v24 upgrade

Migrated from copilot-cli session 4afdbe0b