- New task app/tasks/avito_detail_backfill.py with run_avito_detail_backfill()
* Single snapshot SELECT at start (guarantees termination)
* Same proxy/AsyncSession path as scrape_pipeline.py step 5
* Budget guard (budget_sec), consecutive block abort (mark_done not mark_failed)
* rotate_ip() on every AvitoBlockedError; rollback on generic Exception (#1368)
* start = time.monotonic() initialized before try so except can reference it
- Scheduler wiring: trigger_avito_detail_backfill_run() + elif in scheduler_loop()
- Migration 112: scrape_schedules INSERT window 09-12 UTC, batch_size=800,
budget_sec=3600, request_delay_sec=6, max_consecutive_blocks=5
- 7 unit tests (no pytest-mock, unittest.mock only): all 7 passing,
full CI suite 1809 passed
