MechaCat02 8c6378b877 feat(crawler): recircuit TOR on transient pages and unauthenticated probes ...

- target.rs swaps retry_on_transient → retry_on_transient_with_hook,
  signaling NEWNYM via ctx.tor between attempts when configured.
- session.rs gains verify_session_with_recircuit; the bare
  verify_session is now a one-line wrapper passing tor=None,
  unauth_max_recircuit=0. The inner run_session_probe_loop is
  pure-over-IO and unit-tested with closure-based fakes.
- content.rs extracts fetch_chapter_html_once + the closure-driven
  fetch_chapter_html_with_recircuit, used by sync_chapter_content to
  retry on Transient or Unauthenticated up to a recircuit_budget.
  Budget = 0 (no TOR) preserves original behavior bit-for-bit.
- app.rs and bin/crawler.rs construct the controller before on_launch
  and pass it into verify_session_with_recircuit, so a transient
  hiccup at startup no longer requires PHPSESSID rotation.

Recircuit budget defaults to CRAWLER_TOR_RECIRCUIT_MAX_ATTEMPTS (3).
Errors from NEWNYM are logged and swallowed — failing to recircuit
should not take down the crawl.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-05-31 20:01:04 +02:00

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