Pre-baked offline cities (London, Barcelona, New York) + endpoint-stop fix
Tristan Leduc+1: Claude Opus 4.8 (1M context)
6881784
Keeps the "Off the Grid" badge while going multi-city: each extra city is baked
as a bounded walkable core (centre + radius) committed via Git LFS, so it routes
fully offline — no live OSM at request time.
- data/build_city.py + config.CITIES registry; data/cities/<slug>_{walk.graphml,
pois.parquet} for london/barcelona/newyork (+ cities_manifest.json).
- routing/area.py: resolve_area now picks Paris → a pre-baked city (both points
in its core) → (online only) on-demand fetch. In offline mode, anywhere else
is refused with an honest "WanderLust covers Paris, London, …" message.
- routing/geocode.py: offline name index now spans Paris + every pre-baked city,
with city-hint disambiguation ("…, London") so a landmark resolves to the
right city; suggest()/local_geocode() are city-aware.
- pipeline.py: drop candidate POIs within 80 m of the start/destination so an
endpoint (e.g. the square you start from) is never offered as a "discovery
stop" — it isn't a detour and read as …
