fix(geoportal): move PMTILES_URL + MARTIN_URL to build args (NEXT_PUBLIC_ requires build time)

NEXT_PUBLIC_ env vars are inlined by webpack at build time in client components.
Setting them only in environment (runtime) has no effect — the map-viewer
was falling back to Martin for ALL tiles, causing 90% PostgreSQL CPU.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

docker-compose.yml

@@ -6,6 +6,8 @@ services:
         - NEXT_PUBLIC_STORAGE_ADAPTER=${NEXT_PUBLIC_STORAGE_ADAPTER:-database}
         - NEXT_PUBLIC_APP_NAME=${NEXT_PUBLIC_APP_NAME:-ArchiTools}
         - NEXT_PUBLIC_APP_URL=${NEXT_PUBLIC_APP_URL:-https://tools.beletage.ro}
+        - NEXT_PUBLIC_MARTIN_URL=https://tools.beletage.ro/tiles
+        - NEXT_PUBLIC_PMTILES_URL=http://10.10.10.166:9002/tiles/overview.pmtiles
     container_name: architools
     restart: unless-stopped
     ports: