Pilot v5 (50 quarters) разоблачил что cad_quarters_geom имеет 1735/2408 (72%)
ЕКБ rows с broken micro-precision geom (width ~0.01м instead of 200-4000м).
Causes:
- grid-walk WMS receives bbox ~1mm × 1mm → 500 ServiceException на all 450 req
- One quarter hung 2+ min (silent failure in async loop)
Real fix: re-import cad_quarters_geom geometry from NSPD (category 36381).
Tracked в follow-up issue.
Quick fix (this PR): sanity-check quarter_bbox_3857 — return None если width
ИЛИ height not in [100m, 10000m]. Bulk_harvest_quarter then skips grid-walk
для broken quarters, только snapshot phase запускается (20 per cat).
After this fix:
- All 50 pilot quarters получают snapshot (parcels/buildings/etc up to 20 each)
- Grid-walk runs only для 673/2408 healthy quarters → no 500 cascades, no hangs
6d9b30625b