FS.com renders per-warehouse availability as a bare word-date on each line
("2 Stk. im DE-Lager, 8. Juli 2026 Lieferbar"). The old regex only matched a
"Lieferung:"/"erwartet:" prefix or numeric dd.mm.yyyy, so warehouse_de/global
delivery_date + backorder_estimated_date were 0% populated across 85k rows, and
lead_time_days was never written at all.
- new fs-com-parse.ts: pure, unit-tested parsers (13 node:test cases).
- extractDeliveryDate finds the bare word/numeric date per warehouse, bounded to
its own line so a date never bleeds to a neighbouring warehouse.
- computeLeadTimeDays = min(delivery_date - today), floored at 0; threaded into
upsertStockObservation (now writes lead_time_days) and upsertPriceObservation.
- parseGermanQty: K/M abbreviations now treat '.' as a decimal ("4.8K"=4800,
"1.4M"=1.4M) instead of stripping it (was "1.4M"->14,000,000 — the outlier).
- units_sold sanity gate at ingest (FS_MAX_UNITS_SOLD, default 2,000,000).
- sql/122: purge impossible historical units_sold, re-document columns as collected.
