The esbuild bundle wraps everything in a 'use strict' IIFE, causing the
leaflet UMD module to take the CommonJS path instead of setting
window.leaflet. The entry point check window.leaflet && !window.L always
failed, so window.L was never assigned and the map never initialized.
- Add leaflet-global.js to import leaflet-minimal and set window.L before
plugins execute (ESM source-order evaluation guarantees this)
- Replace the broken window.leaflet check in map-bundle-entry.js with an
import of leaflet-global.js
