Reverted from MapLibre/PMTiles to Leaflet with nginx-proxied OSM raster
tiles — the MapLibre approach had unresolvable CSP and theme compat
issues. The proxy keeps all browser requests local (no third-party).
Also:
- Add CPE signal strength and parent AP name to fleet summary SQL
and map popup cards (e.g. "Signal: -62 dBm to ap-shady-north")
- Add .dockerignore to exclude 8GB PMTiles and node_modules from
Docker build context (was causing 10+ minute builds)
- Configure mailpit SMTP in dev compose
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
