- MsFootprints (51% → 93%): http_get injection for dataset_index and
download_tile, with stubbed CSV parsing, empty CSV, caching, and
disk-cache-skip tests
- HrdpsClient (47% → 71%): http_get/http_head injection for fetch_grid
and cycle_available, with stubbed probe, success/failure/transport-
error tests, plus fetch_grid error path
- NexradClient (57% → 58%): http_get injection, fetch_frame success
path with valid PNG stub, process_frame coverage
- HrrrNativeClient: http_get injection for fetch_idx (no direct test
since function is private)
Coverage: 79.43% → 79.68% (need 0.32% more)
Phase 1 of building-blockage support: implements quadkey math (Bing/MS
tile encoding), looks up the MS dataset-links index for UnitedStates,
and downloads csv.gz quadkey tiles to /data/buildings (overridable via
:buildings_cache_dir). Index is cached 24h; tiles are written once and
reused. No path-analysis wiring yet — that's the next slice.
