v4.0.0

New options toolbar/panel and unified legend (#106).

Breaking changes

• Removed the old display-options menu and legend components and their exports: Menu, MonitorsDisplayOptions, EvStationsDisplayOptions, MapLayersDisplayOptions, MapStyleDisplayOptions, ToggleSwitch and SegmentedControl. Build menus from the new exports instead: OptionsBar, OptionsGroup, OptionsMenu, the row components, the PollutantMenu/MonitorsMenu/LayersMenu/OverlaysMenu/SettingsMenu components, Legend/LegendBar, resetMapOptions and mapStyleState.
• Monitor display options are now split by vendor. There is a new airgradient option, purpleair covers all PurpleAirs, and sjvair (non-FEM) is removed.
• EV stations are off by default, with Level 2 and Level 3 on.

Changes

• Options: a dropdown toolbar at 768px and wider, and a full-screen "Map Options" panel below that.
  • Pollutant: PM2.5, Ozone or the new None (?pollutant=none).
  • Monitors: Reference-grade and Low-cost groups with select-all.
  • Layers: Fire & Smoke and EV Chargers.
  • Overlays: Wind.
  • Settings: Marker Clusters, Basemap and Theme, with the theme carried over between basemaps, plus Reset Map Options.
• Legend: a single collapsible legend. The pollutant gradient comes from the monitor metadata levels, and the fire and smoke colors are shared with the map layers.
• Markers: all low-cost monitors (AirGradient, PurpleAir, VOZbox) now render as circles.
• MapShell: gains an optional search snippet.
• Bug fixes:
  • Disabled layers no longer reappear after data refreshes.
  • No more "Style is not done loading" errors during basemap changes and Reset.
  • Hover tooltips work again after a layer is re-applied.
• Tooling: added Vitest (npm test).

Upgrading

Consuming apps need to bump to ^4.0.0 explicitly; a ^3.x range won't pick it up.