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484 commits

Author SHA1 Message Date
aa65809cd2 feat(tradein/estimator): elite-segment manual_review trigger by asking ppm² (#2002)
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Backtest показал систематическую недооценку бизнес/элита (bias ≈ −29%):
премия unit-level (отделка/вид/класс) отсутствует в данных сделок, поэтому
expected_sold затягивает элит-юнит в бизнес-полосу. Элит-юнит вне curated
premium-дома, < 20 млн и с приличной уверенностью раньше не получал предупреждения.

Новый триггер _manual_review по asking/headline ₽/м² (median_price_per_m2,
«по объявлениям» — НЕ занижённый expected_sold_per_m2): asking_ppm2 ≥
estimate_manual_review_elite_ppm2 (250к) → честное предупреждение, что
авто-оценка консервативна. Только метаданные — median/expected_sold/ranges
не тронуты, regression-gate byte-identical.
2026-06-27 23:11:55 +03:00
ec0f113d4f chore(tradein/backtest): --resolve-house-id flag to measure Tier-S + IMV anchor (#2002)
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2026-06-27 19:44:38 +00:00
e39fb86a9b feat(tradein): AI-curated premium-building overlay — class + false-positive demotion (#2002)
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2026-06-27 18:43:05 +00:00
275e7e9618 feat(tradein/estimator): manual_review recommendation flag (#2002)
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2026-06-27 18:17:24 +00:00
c5227a164e feat(tradein/cian): promote kitchen/mortgage/apartments + normalize house_type (#2008)
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cian house_type normalized via shared house_type_normalizer (monolithBrick->monolith_brick etc.) — fixes estimator soft-penalty false-mismatch (~1208 rows); backfill migration 141 + new columns is_apartments/is_rosreestr_checked. kitchen/mortgage/apartments promoted (dashboard/matching, not valuation — #2012). Refs #2008
2026-06-27 18:01:50 +00:00
440bb2ca51 feat(tradein/yandex): normalize house_type + promote kitchen/ceiling to columns (#2007)
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house_type normalized via shared house_type_normalizer (canon = _IMV_HOUSE_TYPE_MAP) — fixes estimator soft-penalty false-mismatch on ~70% yandex analogs; backfill migration 140 (SCREAMING->canon + 'other'->NULL). kitchen/ceiling promoted to columns (dashboard/matching, not valuation — see #2012); ceiling capped 2.0-6.0m to avoid numeric(3,2) overflow. Refs #2007
2026-06-27 17:45:11 +00:00
50684ce87e fix(tradein/estimator): remove dead tier-aware-ratio path — truncation artifact + footgun (#2002)
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2026-06-27 17:34:54 +00:00
4a93a9297c fix(tradein/avito): persist house_type + house_catalog_url in save_detail_enrichment (#2009)
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house_type (normalized) + house_catalog_url→house_url persisted in save_detail_enrichment; COALESCE existing-first for house_type, new-first for house_url. No migration (columns exist). Refs #2009
2026-06-27 17:30:34 +00:00
840d64a4a0 feat(tradein): premium_houses MV + premium_building flag (#2002)
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2026-06-27 16:40:39 +00:00
c45445b726 feat(tradein/estimator): hedonic year+area correction on expected_sold (#2002)
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2026-06-27 16:06:08 +00:00
9448a945d4 feat(tradein/estimator): calibrated 80% prediction interval for expected_sold range (#1966)
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2026-06-27 14:01:24 +00:00
54a5d13c48 feat(tradein/domclick): enrich Layer A SERP parser — description, repair-inference, minhash, seller
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Capture extra bff-search fields in _map_item (verified live):
- description → ScrapedLot.description + infer_repair_state_from_text → repair_state
  (DomClick search has no renovation-enum; text inference like cian #622)
- sha1 description_minhash (cross-source dedup)
- agency_name from seller (defensive str|dict)
- raw_payload: is_sber_collateral, has_discount, discount_value, duplicates_offer_count, seller

Additive only; existing Layer A behavior unchanged. Deep card detail (renovation-enum,
wallType, full price-history, owners_count) is card-only = QRATOR-blocked on prod proxy
→ separate effort (needs dedicated residential IP).
2026-06-27 16:35:25 +03:00
ec9ed56fad feat(tradein/backtest): hermetic estimator regression gate — frozen fixture + baseline (#1966 PR 3/3)
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2026-06-27 12:55:35 +00:00
57bf8ffb81 feat(tradein/backtest): full-spine prediction + range-coverage/calibration/segment metrics (#1966 PR 2/3)
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Full-spine backtest harness via _price_from_inputs + range-coverage/calibration/per-segment MAPE. code-reviewer APPROVE. Real prod numbers: overall MAPE 18.4%/bias -1.2%; segments эконом +16% / бизнес -23% / элит -38%; range-coverage 56.6%. Read-only; full suite 2488 passed. Refs #1966.
2026-06-27 11:21:57 +00:00
4a63b8f7d7 Merge remote-tracking branch 'forgejo/main' into fix/tradein-domclick-bff-rewrite
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2026-06-27 13:57:24 +03:00
52fc920507 fix(tradein/domclick): rewrite dead scraper to BFF JSON API + honest status (#1846, #1968)
Old HTML scraper dead: /search?city_id retired in DomClick redesign + VPS IP
QRATOR-banned (prod domclick_city_sweep reported done/0 every run). New path:

- GET bff-search-web.domclick.ru/api/offers/v1 + count/v1 via
  BrowserFetcher(source="domclick") -> generic provider -> shared mobile proxy
  -> bypasses QRATOR (prod-verified live: 20 items returned, no block).
- Sweeps 6 room buckets (st/1/2/3/4/5+); recursive binary price-split for
  oversized buckets (rooms=2 ~2215 > offset cap 2000); count/v1 sizes buckets.
- Maps SERP JSON -> ScrapedLot with lat/lon at ~100% (closes avito 54% NULL-lat
  gap); per-card EKB geo-guard.
- Honest status (#1968): QRATOR block OR fetch errors with 0 lots -> mark_failed,
  not mark_done. Parse failures are per-page resilient (break bucket, keep partial
  lots) so a transient bad page never aborts the whole sweep.
- Schedule shipped DORMANT (enabled=false, pages=100) via
  138_domclick_bff_rewrite_schedule.sql; operator enables after prod smoke.

42 scraper tests (price-split boundaries, parse-error resilience, honest status);
full backend suite green; ruff clean. Layer B (detail renovation/wallType/
priceHistory) deferred to #1846 follow-up.
2026-06-27 13:57:07 +03:00
703e411a17 feat(tradein/auth): expire praktika trial access + trial-ended screen (contact Artem)
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praktika pilot→expired role in roles.yaml (paths:[], deny:/**); RouteGuard
short-circuits on role=expired with a dedicated trial-ended screen (not the
generic path-deny path). NoAccessScreen gains variant="trial" with title
«Пробный доступ закончился» and a Telegram link to @ArtemKopylov87. Backend
Role Literal and frontend Role type extended to include "expired". kopylov
(pilot) unaffected.
2026-06-27 13:30:28 +03:00
2ea49b637f refactor(tradein/estimator): extract deterministic pricing into pure _price_from_inputs (#1966 foundation)
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Behavior-preserving structural refactor: the ~870-line deterministic pricing
block inside estimate_quality() is extracted into a new pure synchronous function
_price_from_inputs() returning a PricingResult dataclass.

Key design decisions:
- All async DB fetches (imv_eval, yandex_val, cian_val) hoisted to estimate_quality
  BEFORE the call; passed as pre-fetched values / bool flags.
- DB-dependent helpers whose arguments are computed inside the block (_get_asking_sold_ratio,
  _lookup_quarter_index, _lookup_quarter_indexes) injected as Callable parameters
  (ratio_resolver, quarter_index_lookup, quarter_indexes_lookup).
- _fetch_house_imv_anchor called once in estimate_quality (was two separate conditional
  calls inside the block); single result passed as imv_anchor dict.
- _fetch_dkp_corridor and _fetch_anchor_comps hoisted to estimate_quality with
  identical guards.

All 2443 existing tests pass UNMODIFIED. 9 new hermetic unit tests added that
call _price_from_inputs directly with stub callables.
2026-06-27 13:00:21 +03:00
24a80ee0cf wip: extract pricing spine (pre-test) 2026-06-27 12:51:14 +03:00
e24d3cf4be fix(scrapers): cian full_load anti-zombie — per-fetch wait_for + heartbeat внутри бакета (#1949)
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Два связанных фикса из диагностики 2026-06-27:

ФИКС C (run_cian_full_load, per-fetch timeout): monkey-patch _browser.fetch →
asyncio.wait_for(_f(url), timeout=cian_full_load_per_fetch_timeout_s=90s).
BrowserFetcher.fetch имеет httpx-timeout 120s, но browser-сервис иногда виснет
так что httpx не получает ответ (нет EOF) → fetch висит → asyncio.gather
блокирует весь bucket → heartbeat_at не обновляется → reap_zombies убивает живой run.
wait_for(90s) отменяет зависший fetch → TimeoutError → _fetch_page_html ловит
как Exception → None → _one_page → [] → gather завершается нормально.
За флагом (cian_full_load_per_fetch_timeout_s=0 = отключить, >0 = включить).

ФИКС D (background heartbeat): asyncio.create_task(_background_heartbeat())
обновляет heartbeat_at каждые 60s независимо от on_bucket/on_progress прогресса.
Без него пустые bucket или зависший gather замораживает heartbeat на несколько часов.
Task отменяется в finally → не течёт при return/raise/cancel.

Новая настройка (ENV):
  CIAN_FULL_LOAD_PER_FETCH_TIMEOUT_S=90.0  — timeout одного browser-fetch
2026-06-27 11:32:42 +03:00
757f6486f5 fix(scrapers): avito changeip-resilience (retry короткими попытками) + честный статус когда SERP отработал (#1950)
Два связанных фикса из диагностики 2026-06-27:

ФИКС A (_rotate_proxy_ip): вместо одношотного GET с timeout=30s — retry-loop
(proxy_rotate_attempts=3 попыток по proxy_rotate_attempt_timeout_s=8s каждая).
Зависший changeip-сервис больше не блокирует весь sweep на 30s.
Первый успешный attempt → True; все провалились → False (логируется как error).

ФИКС B (run_avito_city_sweep): когда SERP-фаза уже сохранила лоты
(lots_inserted + lots_updated > 0) и упала только detail/houses-фаза
(AvitoBlockedError / RateLimitedError), помечаем run как done (не banned)
при avito_serp_ok_not_banned=True (default). Метрика banned зарезервирована
для случаев где SERP сам заблокирован (0 лотов).

Новые настройки (ENV):
  PROXY_ROTATE_ATTEMPT_TIMEOUT_S=8.0   — timeout одной changeip-попытки
  PROXY_ROTATE_ATTEMPTS=3              — число попыток перед отказом
  AVITO_SERP_OK_NOT_BANNED=true        — флаг нового поведения (default on)
2026-06-27 11:24:54 +03:00
8d5c1a888d perf(estimate): trigram expression index for same-building anchor Tier A (~94x)
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_fetch_anchor_comps Tier A runs on EVERY /estimate (flag
estimate_same_building_anchor_enabled defaults True, not overridden in prod).
Its address predicate wraps address in lower(translate(address,'ёЁ','ее')) for
both the LIKE '%street%' and the ~house-number regex — non-sargable, and the
existing listings_address_trgm_idx is on the RAW address, so the planner
seq-scanned all ~66.7k listings (167ms, 15801 buffers) every estimate.

Add a GIN trigram expression index on lower(translate(address,'ёЁ','ее'))
matching the predicate exactly (gin_trgm_ops serves both LIKE and the regex).
Prod EXPLAIN (BEGIN/ROLLBACK, "Хохрякова 48"): 167ms -> 1.77ms (~94x), buffers
15801 -> 97. Independently dry-run-verified: Bitmap Index Scan, 0.66ms.
Result-identical (pure access-path; count/sum/min/max unchanged). No code
change (expression matches the predicate). ~8MB, sub-second build.

Other estimate-path queries confirmed already optimal (Tier W/H geom+rooms
BitmapAnd, Tier S house_id_fk) — no other index warranted.

tradein-mvp/backend/data/sql/137 (correct tradein migrations path).
2026-06-27 11:16:48 +05:00
bcdc7ccb04 fix(estimator): deterministic comp tie-breaker + n_analogs counts priced analogs
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Found by adversarial valuation audit (2 confirmed, bot-safe).

FIX A (#5): both radius comp queries (Tier H ~3990, Tier W ~4135) ended with
a bare ORDER BY relevance_score; on score ties Postgres returned rows in
undefined order, so the same /analyze could pick different comps across runs.
Append deterministic tiebreaker: relevance_score ASC, distance_m ASC,
scraped_at DESC NULLS LAST, id ASC (id = listings PK → total order). Added id
to each base CTE; outer projection unchanged (no leak downstream).

FIX B (#2): _filter_outliers keeps rows with price_per_m2 IS NULL, but the
median is built from prices_ppm2 (drops them) while n_analogs counted all of
listings_clean — overstating contributing comps ("Найдено N аналогов"
misleading; all-price-less -> median=0 but n_analogs>0). Count n_analogs from
prices_ppm2 in the radius path. #698 anchor overwrite + #691 zero-analog->low
guard unaffected; listings_clean itself not filtered.

Adds tests/test_estimator_n_analogs_priced.py (verified to fail on old code).
Audit also flagged velocity fan-out (false-positive: 0 duplicate domrf_obj_id
on prod) and >/>= disclosure tweaks (cosmetic) — deliberately not changed.

Refs #1871
2026-06-27 05:57:04 +05:00
8bb302aadf test(tradein): cover avito/cian + mark_failed total_seen/new_count persistence (#1926)
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#1928 fixed scrape_runs.total_seen/new_count for sweeps via _column_counts
but only regression-tested the yandex mark_done path. Add equivalents for
the CitySweepCounters (avito/cian) sweep and the mark_failed path — both
explicitly named in the #1926 audit — so the all-sweeps + failure-path
guarantee is locked in.

Refs #1926
2026-06-27 05:16:14 +05:00
6ce60a0d8c fix(tradein): backfill house_id_fk via source-identity path (#1781)
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Migration 130 only filled house_id_fk for listings carrying
house_source/house_ext_id. Prod (2026-06-27): 1884 active NULL-FK rows
remain, 0 with house_source/ext_id (130 re-run = no-op). They were
matched via the per-listing-identity path the realtime mirror uses when
no house catalog id exists: match_or_create_house(ext_source=source,
ext_id=source_id) -> Tier-1 house_sources lookup (confidence 1.0).

136 replays that exact lookup offline: UPDATE listings SET house_id_fk
= house_sources.house_id WHERE (ext_source=source, ext_id=source_id) and
house_id_fk IS NULL. Faithful to base.py:704-750; idempotent (NULL
guard); deterministic (no fuzzy/geo); collision-safe (catalog ids live
under distinct ext_source like 'cian_newbuilding'). Dry-run BEGIN/ROLLBACK
fills 4608 NULL-FK rows (744 active), restoring estimator Tier-S
"same-building" grouping. The remaining ~1140 active need re-scrape/
re-match (scraper coverage — #1781 Лёха).

Refs #1781
2026-06-27 05:01:02 +05:00
63ac12dc23 feat(tradein): recurring house-dedup merge (schedule dormant) (#1772) (#1933)
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2026-06-26 21:39:30 +00:00
89d05bbfec fix(tradein): persist scrape_runs.total_seen/new_count from sweep counters (#1926) (#1928)
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2026-06-26 18:09:17 +00:00
87364eebca fix(test): test_849 expects 3 begin_nested/lot after #1921 upsert-reconcile SAVEPOINT — unblock red main gate (#1925)
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2026-06-26 17:23:24 +00:00
d89210200b perf(tradein): GIST index on (geom::geography) for estimator radius filter (#1189) (#1924)
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2026-06-26 17:12:49 +00:00
74ea6659ea Merge pull request 'fix(scrapers): avito_full_load краш (source_id-reconcile) + cian/yandex ban-ротация' (#1921) from fix/scraper-resilience-upsert-rotation into main
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Reviewed-on: #1921
2026-06-26 16:19:06 +00:00
5d5b2981fc Merge pull request 'fix(estimator): флаг + тесты для ghost-anchor guard и radius-dedup (#1871)' (#1919) from fix/estimator-trust-ghost-dedup into main
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Reviewed-on: #1919
2026-06-26 16:18:58 +00:00
c1cdf3969c fix(scrapers): ban/stuck-ротация для cian+yandex (provider-aware _rotate_proxy_ip)
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2026-06-26 19:10:26 +03:00
197068c515 fix(scrapers): save_listings — UPDATE by (source,source_id) при dedup_hash-дрейфе (avito_full_load краш) 2026-06-26 19:10:12 +03:00
2fe34ac785 fix(estimator): ghost-anchor — confidence='low' when radius analogs empty (#1871) (#1920)
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2026-06-26 16:07:12 +00:00
9678aface5 fix(estimator): dedup radius-аналогов — не раздувать n_analogs (#1871)
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Добавляет тест test_n_analogs_reflects_deduped_count: 3 дубля одного объекта
(один source_id) → 1 кандидат (freshest scraped_at); 3 разных объекта → все 3.
Верифицирует ключевое требование #1871 P2: n_analogs отражает дедупнутое число,
а не raw кол-во строк в listings с дублями (prod: 797 yandex + 93 cian дублей
раздували n_analogs и искажали медиану/перцентили).
2026-06-26 18:52:11 +03:00
68f7c0e015 fix(estimator): запрет confidence=high при n_analogs=0 (#1871 ghost-anchor)
Добавляет settings-флаг estimate_confidence_floor_no_analogs (дефолт True),
гейтящий вызов _enforce_zero_analog_low перед сборкой AggregatedEstimate.
При n_analogs==0 и confidence!='low' форсит 'low' + добавляет caveat в
explanation («без сопоставимых аналогов рядом»), предотвращая показ выдуманного
«высокого» доверия когда оценка построена только на внешних оценщиках
(yandex_valuation/cian_valuation) без реальных рыночных аналогов.
2026-06-26 18:50:19 +03:00
e03c810306 feat(tradein-imv): route IMV backfill через BrowserFetcher.fetch_json за dormant-флагом (#915 Stage 3) (#1916)
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2026-06-26 09:54:28 +00:00
d479edeb3f feat(tradein-browser): additive POST /fetch-json + BrowserFetcher.fetch_json (#915 Stage 2) (#1915)
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2026-06-26 09:30:35 +00:00
e0cd378d19 fix(migration-133): dedup via cascade-delete, not child re-point (prod hotfix)
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Migration 133 failed on prod (offer_price_history UNIQUE (listing_id,change_time) + multi-loser collisions). Drop data-child re-points, rely on FK ON DELETE CASCADE; keep only merged_into. Dry-run on prod: 9840 groups, 9889 losers deleted, clean. Refs #1773
2026-06-26 08:16:27 +00:00
1d5b081cb4 fix(cian): recover new-build house via cadastral anchor + listings (source,source_id) dedup (#1773) (#1912)
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cian new-build cadastral anchor + listings (source,source_id) dedup (#1773): migration 133 (deep-reviewed data-loss-safe). Refs #1773
2026-06-26 07:45:22 +00:00
3f1925052b feat(scheduler): wire house_imv_backfill as scheduled source (#854) (#1910)
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wire house_imv_backfill as scheduled source (#854): trigger fn + seed migration 132. Refs #854
2026-06-26 07:45:08 +00:00
5ed88c41a4 fix(avito): post-merge polish — unify fetch_mode guard + empty-render guard (#1811) (#1909)
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avito SERP browser post-merge polish (#1811): unify fetch_mode guard, empty-render guard, debug logging. Refs #1811
2026-06-26 07:44:22 +00:00
4eaf184d0e fix(avito): graceful sidecar HTTP 500/503 in browser SERP fetch (#1790)
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Classify tradein-browser sidecar HTTP 500/503 in _fetch_serp_html_browser and route into existing rotation/retry machinery: soft-ban → IP rotation, transient → bounded backoff, both exhausted → AvitoRateLimitedError (graceful mark_banned, partial preserved) instead of mark_failed. Fixes run-#356 class where one late 500 nuked a run that had saved 3186 listings.

Refs #1790
2026-06-25 06:47:41 +00:00
77a3d3f75a fix(estimator): enable split-home disclosure at validated threshold 1.2 (audit #1871)
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Включает wide-corridor disclosure (PR #1880, был default OFF) — но с
ИСПРАВЛЕННЫМ порогом по prod-данным.

Проверка на trade_in_estimates (60д): corridor_pct = (range_high-range_low)/
median_price имеет median≈0.48, p90≈0.93, p99≈1.38; **30.7% оценок > 0.6**.
Старый порог 0.6 прилепил бы caveat «дом разбит на секции» к ~трети оценок —
большинство НЕ split-дома (широкий коридор бывает от разных причин). Это была
бы ложная атрибуция (дезинформация).

- estimate_wide_corridor_threshold 0.6 → 1.2: genuine split-дома из аудита =
  148-170% (1.48-1.70) → 1.2 ловит только экстремальный хвост (>p99), не трогая
  нормальную оценочную неопределённость.
- estimate_wide_corridor_disclosure_enabled False → True (включаем после
  валидации). ENV-override сохранён (kill-switch).
- Формулировка смягчена: «дом разбит на секции» → «вероятно, дом разбит на
  секции разной этажности ИЛИ разнородный фонд» — мы ИНФЕРИМ split по ширине
  коридора, не доказываем структурно.
- Логика не тронута: фаерит только Tier A + corridor>threshold, только понижает
  confidence + дописывает explanation; point/median/range не трогает.

Тесты: обновлены default-ассерты (флаг ON, порог 1.2) + 2 behavioral boundary-
теста (фаерит при pct>threshold, НЕ фаерит при умеренном 1.045<1.2 — доказывает
что raise убрал false-positive flood). 13 passed.

Refs #1871
2026-06-24 01:54:58 +05:00
7ae96ad1af Merge pull request 'fix(estimator): radius (source,source_id) dedup + split-house corridor disclosure (audit #1871 P2)' (#1880) from audit/1871-p2-estimator-dedup-split into main
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2026-06-23 09:49:11 +00:00
1b23fc5d95 fix(estimator): radius (source,source_id) dedup + split-house corridor disclosure (audit #1871 P2)
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Два P2-фикса в чувствительном estimator.py, оба за флагами.

DEDUP (estimate_radius_dedup_enabled, default ON):
radius-путь _fetch_analogs (Tier S-canonical/S-fallback/H/W) кэпил только
per-address (rn_addr ≤ MAX_ANALOGS_PER_ADDRESS=5), но (source,source_id)-дубли
делят один address и выживали на разных rn_addr рангах → раздували n_analogs
(prod 2026-06-23: yandex 48, cian 9, n1 5 excess). Добавлен rn_dup-window
PARTITION BY source, CASE(id:source_id|url:source_url|ctid) ORDER BY scraped_at
DESC + AND rn_dup=1 во все 4 тира — зеркалит anchor-dedup (:1556). CASE/ctid-guard
не схлопывает legacy NULL-source_id. ctid доступен (все тиры FROM listings
single-table). psycopg3: column::type (легально), bind-param :: отсутствует.

SPLIT DISCLOSURE (estimate_wide_corridor_disclosure_enabled, default OFF):
Tier A матчит по address-regex (намеренно — дом дробится на house_id), на
split-доме разной этажности comp_min..max растягивает коридор до 148-170%.
При corridor_pct > threshold (0.6) → понизить confidence на ступень + caveat
«дом разбит на секции разной этажности — оценка ориентировочная». НЕ трогает
point/median/range — только confidence+explanation. Helper _downgrade_confidence.
Default OFF (no-regress, включим осознанно). Merge house_id отклонён (recon:
вреден — Tier A намеренно обходит house_id-группировку).

Тесты: +22 (dedup 4 тира + семантика + psycopg3-regex guard; split disclosure
через реальный _run_estimate harness + does-not-touch-median/range + helper).
399 estimator passed, ruff clean, mypy pre-existing-only.

Refs #1871
2026-06-23 14:48:02 +05:00
04550bc94f fix(tradein): drop non-EKB avito detail coords on ingest (audit #1871 P2)
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avito_detail.parse_detail_html писал data-map-lat/lon прямо в listings
UPDATE COALESCE без bbox-валидации — в отличие от geocoder.py, который
фильтрует везде. Итог: 406 active avito-листингов с координатами
Питер/Тюмень/Уфа просочились в ЕКБ-датасет (ложные аналоги через Tier A
address-match оценщика). Prod-verified 2026-06-23.

- geocoder: DRY-хелпер is_within_ekb_bbox(lat, lon, bbox) + именованные
  EKB_BBOX_TIGHT (geocoder-фильтр, числа не изменены) и EKB_BBOX_WIDE
  (ingest-guard); 2 inline tight-проверки → хелпер (поведение identical).
- avito_detail: после извлечения lat/lon → reset None + logger.warning
  если вне wide-bbox; листинг падает в geocode-cron путь (COALESCE NULL
  не затирает прежнее хорошее значение).
- tests: bbox-хелпер (ЕКБ True, Питер/Тюмень/Уфа False, inclusive,
  WIDE⊇TIGHT инвариант) + parse_detail_html guard end-to-end.

WIDE строго содержит TIGHT — guard физически не режет ничего, что
geocoder сам бы пропустил. NULL lat (14935, geocode backlog) — отдельная
проблема, не в scope. One-time cleanup существующих 406 — отдельно
(database-expert, prod data mutation).

Refs #1871
2026-06-23 14:33:10 +05:00
41e9c820c9 fix(tradein/estimator): ghost-anchor invariant guard — n_analogs=0 forces low (audit #1871 P1.2)
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Audit #1871 P1.2: estimate 5fcc1e99 показывал confidence='high' при
n_analogs=0 (median 38.45M ₽, sources=['yandex_valuation']) при реальной
истории листингов дома 4.2-6.5M. По prod-DB это ЕДИНСТВЕННАЯ legacy-строка
от 2026-05-30, давно expired (TTL оценок = 1 день, все 66 high/medium-c-n<5
строк expired). Текущий mainline уже честен. Фикс — defensive invariant,
чтобы ghost не мог родиться снова из будущих external-valuation-blend /
rehydrate / migration путей.

Backend (estimator.py):
- helper _enforce_zero_analog_low(confidence, n_analogs, explanation, ...)
  форсит 'low' + caveat когда n_analogs==0 and confidence!='low'.
  Идемпотентен (low+0 → low без дубля caveat), не трогает high+N>0, реальный
  median внешнего сервиса сохраняется (fake-коэффициенты не вводятся),
  logger.warning для observability.
- Вызов перед сборкой AggregatedEstimate в estimate_quality (единственный
  уязвимый return-путь; _empty_estimate хардкодит low — структурно безопасен).
- +5 unit-тестов (high+0→low+caveat, medium+0→low, low+0 идемпотент,
  high+N unchanged, None-explanation).

Frontend (HeroSummary, HeroTransparency, history):
- effectiveConfidence = n_analogs===0 ? 'low' : confidence — defensive depth
  на случай legacy-rehydrate / контракт-drift. Caveat-текст из backend
  confidence_explanation (не хардкод). Type-safe (ConfidenceLevel).

Refs #1871
2026-06-23 11:05:34 +05:00
92725c6122 fix(tradein): Mera-audit fix-4 — верифицировать DEAL_MAX_PPM2 vs prod данных
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Данные на 2026-06-21 (prod deals table, 49 791 записей):
  p90=172 419 ₽/м², p95=199 583 ₽/м², p99=278 681 ₽/м², p99.9=500 000 ₽/м²
  deals >800k = 13 штук (0.026%) — нерыночные outlier'ы, не легитимный премиум ЕКБ.
  listings p99 (is_active, <800k фильтр) = 392 795 ₽/м².

Вывод: DEAL_MAX_PPM2=800_000 НЕ срезает легитимный ЕКБ-премиум (p99.9 сделок=500k).
Значение NOT изменено — задокументировано в комментарии рядом с константой
для обоснования порога и последующей ревалидации при росте рынка.
2026-06-21 09:06:36 +03:00
af1d882745 fix(tradein): Mera-audit fix-3 — cross-source dedup в _fetch_price_trend
Один объект на avito_imv + yandex_valuation с разными ext_item_id создаёт
дубликаты в house_placement_history и double-count'ится в помесячной медиане.
Решение: CTE с DISTINCT ON (round(area_m2), floor, price, price_date) с
приоритетом avito_imv через CASE sort. Легитимные разные квартиры (разные
площадь/этаж/цена) не затрагиваются.

За флагом estimate_price_trend_dedup_enabled (дефолт True в settings).
False → точно старое поведение (backward-compat). Graceful: без изменений
в логике min_points и возврата None при недостатке данных.

Тесты: 6 новых тест-кейсов в test_estimator_price_trend_dedup.py (SQL содержит
DISTINCT ON, flag OFF не содержит, Source1 preferred, данные возвращаются корректно).
2026-06-21 09:05:57 +03:00