feat(models): the project's procedural fleet models and the resolver that picks one per vehicle

121 GLBs under public/models/fleet (about 2 MB, MIT like the code) with
catalog.json and types.json. src/data/fleetModels.js picks a model by ICAO
type, aircraft class, emitter category, AIS ship type and size, GTFS route
type, transit mode or rail category, and sizes it life size; the set loads
once, up front. Trail anchors are measured from the meshes.

scripts/format-scope.json

@@ -1428,5 +1428,9 @@
   "src/ui/ownerFlagSheet.js",
   "src/data/placePacksLoading.test.mjs",
   "src/ui/placePacksLoading.js",
-  "src/ui/placePacksLoading.test.mjs"
+  "src/ui/placePacksLoading.test.mjs",
+  "src/data/fleetModels.test.mjs",
+  "src/data/fleetModelInstances.test.mjs",
+  "src/testSupport/fleetGlb.mjs",
+  "scripts/measure-fleet-trail-anchors.mjs"
 ]