pointToLayer missing return in FeatureBuilder.js causes GeoJSON points to be excluded from bounds

[JeroenDeDauw]

Written by Claude Code, Opus 4.6. Result of code review with @JeroenDeDauw. Context: the Maps extension codebase.

Issue

In resources/leaflet/FeatureBuilder.js, the pointToLayer callback in newGeoJsonLayer (lines 152-173) creates a marker and adds it to markerLayer, but never returns it. Leaflet receives undefined, so Point features are excluded from the GeoJSON layer bounds. This causes auto-zoom/fitContent to ignore point-only GeoJSON data.

Steps to reproduce

1. Create a GeoJSON page with only Point features
2. Display it on a map with fitContent (the default)
3. The map does not zoom to fit the points

Expected behavior

The map should auto-zoom to fit all GeoJSON features including Point features.

Root cause

The pointToLayer callback must return the created marker for Leaflet to include it in the layer's bounds calculation.