Merge wind and ECMWF candidates into walkthrough train

CHANGELOG.md

@@ -165,6 +165,8 @@ of current runtime behavior, see [`docs/CURRENT-STATE.md`](docs/CURRENT-STATE.md
 
 ## [Unreleased]
 
+- Add ECMWF IFS model selection to Wind (#464, thanks @beneduzi), with model-scoped forecast-step caches, cancellation of replaced requests, and separate issue/valid timestamps.
+
 - Give application request services, terrain/floor caches and annotation lookup state explicit owners and cancellation; share them across controls, layers and voice.
 
 - Construct application layers from explicit sources, with standalone provider selection and catalog-owned aircraft classification; controls and voice queries use those instances.
@@ -283,6 +285,12 @@ of current runtime behavior, see [`docs/CURRENT-STATE.md`](docs/CURRENT-STATE.md
   Visible animation, detection membership, history storage and proxy requests
   are bounded. Share links carry Transit as token `j`.
 
+- Add a keyless **Wind** layer from NOAA GFS 10 m wind (#459, thanks @beneduzi). The `/api/wind` proxy
+  byte-range fetches only the UGRD/VGRD GRIB2 messages from the public AWS bucket,
+  decodes them with ecCodes (WASM), and serves a compact Float32 U/V grid; the
+  client renders nullschool-style animated particles in a canvas overlay that
+  follows the Cesium camera and skips globe-occluded points. Forecast, not
+  observations. Requires Node ≥24 for the WASM decoder.
 - Add Ontario 511 as a keyless CCTV source pack, including Kitchener-area
   highway cameras, with server-registered still URLs and attribution.
 - CCTV Mesh adds Finland: Fintraffic road weather cameras, keyless, nationwide, 300 by default. Each camera view of a station is placed separately; ambient stills refresh on the source's 10-minute cadence (the active camera keeps the usual 10-second refresh).