feat(tradein): yandex_valuation.py — anonymous house-history scraper
Stage 6 of YandexRealtyScraper v1 (Wave 4 / Worker C — parallel with
yandex_detail.py and yandex_newbuilding.py).
Module: app/services/scrapers/yandex_valuation.py
- YandexValuationScraper(BaseScraper) — fetch_house_history(address, ...)
URL: GET /otsenka-kvartiry-po-adresu-onlayn/?address=...&offerCategory=...
&offerType=...&page=N
ANONYMOUS — no cookies, no auth (vs Cian Calculator).
- ValuationHouseMeta (year_built, total_floors, house_type, ceiling_height,
has_lift, total_objects, has_panorama)
- ValuationHistoryItem (area_m2, rooms, floor, start/last price + ppm2,
publish_date DMY, exposure_days, status)
- YandexValuationResult — house + history_items[] + pagination metadata
- Two-strategy history extraction: data-test container (if present), else
text-chunk-around-DMY-date fallback with dedup by (date, area, floor).
- _RE_PRICE_TOKEN uses negative lookahead (?!\s*за\s*м²) to exclude ppm2
tokens from total-price extraction.
Tests: 16 unit tests against fixture HTML. All pass. Ruff clean.
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