Merge branch 'main' into docker-support

README.md

@@ -375,6 +375,7 @@ Twenty layers and map sources. **Eighteen have a keyless path.** Some offer addi
 | 🚢 **Live Vessels**         | Thousands of ships worldwide                                                                                                                                                                                                                                                                                                                                                        | AISStream                               | 🟡                                                                                                  |
 | 🛰️ **Satellites**           | 838-object catalog, color-coded by class with a live legend — the **DENSE** chip drops in the whole Starlink shell                                                                                                                                                                                                                                                                  | CelesTrak                               | 🟢                                                                                                  |
 | 🌍 **Earthquakes**          | Global seismic activity, last 24h                                                                                                                                                                                                                                                                                                                                                   | USGS                                    | 🟢                                                                                                  |
+| ◍ **Air quality**           | Live AQHI on the published 1–10+ health-risk scale, with a Weather-panel card showing the band legend and the highest readings in view. **Canada only** — ECCC is the first registered provider | ECCC MSC GeoMet                          | 🟢                                                                                                  |
 | 🚗 **Traffic**              | Simulated vehicles on OSM roads. With TomTom, live flow speeds drive the simulation and congestion colors below ~8 km; individual vehicle positions are not live observations                                                                                                                                                                                                       | TomTom + OSM                            | 🟢 simulation · 🟡 live flow speeds                                                                 |
 | 📹 **CCTV Mesh**            | ~3,900 public cameras projected _into_ the 3D space — Austin · Texas (TxDOT) · California (Caltrans) · London (TfL) · Ontario (511) · Finland (Fintraffic) · British Columbia (DriveBC) · Estonia (Tallinn, Tarktee) · Delaware (DelDOT live video) · New South Wales (Live Traffic NSW) · Calgary · Norway (Statens vegvesen), plus opt-in New York City (NYC DOT TMC, needs your own NYC DOT agreement). Positions are published; poses are estimated priors **you calibrate by dragging a gizmo on the camera itself** | City APIs                               | 🟢                                                                                                  |
 | 📷 **Mapped ALPR Cameras**  | License-plate-reader camera locations tagged by OpenStreetMap contributors, loaded one city-sized view at a time, with **SHOW NEAREST**. Locations and tags only: no plate data, no video                                                                                                                                                                                           | OpenStreetMap (incl. DeFlock mapping)   | 🟢                                                                                                  |