feat(weather): add globe wind, observed weather and cyclone context (#617)

Wind (NOAA GFS and ECMWF IFS: animated particles, colour field, a reading at map centre), observed weather (NOAA MRMS radar, GOES and NESDIS infrared clouds, lightning density) on one shared history timeline, NHC and CPHC cyclone advisories with tracks and cones, and a WEATHER panel in the right rail. On 3D Tiles the observed products render as raised shells with a sharper window around the view.

Co-authored-by: Gustavo Beneduzi <[email protected]>
Co-authored-by: Daniel Slay <[email protected]>
Co-authored-by: Rehaan Delmotra <[email protected]>
Co-authored-by: Cursor Agent <[email protected]>

server/providers/cctv/constants.js

@@ -236,6 +236,14 @@ export const CALGARY_DOWNTOWN = { lat: 51.0461, lon: -114.0626 };
  * body cannot be buffered without limit. */
 export const CALGARY_MAX_CATALOG_BYTES = 4 * 1024 * 1024;
 
+/** DelDOT CCTV: one keyless statewide JSON catalog; live video via RTMP-over-HTTP (rtmpt:80). */
+export const DELDOT_CCTV_URL = 'https://tmc.deldot.gov/json/videocamera.json';
+export const DEFAULT_DELDOT_MAX_SOURCES = 300;
+export const DELDOT_ANCHORS = [
+  { lat: 39.7459, lon: -75.5466 }, // Wilmington (New Castle)
+  { lat: 39.1582, lon: -75.5244 }, // Dover (Kent)
+  { lat: 38.6906, lon: -75.3877 }, // Georgetown (Sussex)
+];
 /** Camera CATALOGS change rarely; 15 min keeps multi-megabyte upstream list refetches (Austin rows.json + 4 Caltrans districts + TfL + Ontario 511) infrequent. Frames are fetched per-request and are unaffected. */
 export const CCTV_SOURCE_CACHE_MS = 15 * 60 * 1000;
 /** Per-provider catalog-fetch timeout. Bounds the worst-case refresh so one