From review:
- The browser client for /api/osm/features gets its own tests (request
shape, abort, network failure, coded refusals), and a 200 whose body is
not JSON is now a failure instead of zero places.
- An end-to-end test runs resolve_area, osm_query and an analyst follow-up
through the real runner and checks the follow-up keeps the area; it fails
with the wiring reverted.
- The Realtime token test pins Overpass off and compares the full tool
schemas again instead of names taken from the environment.