From the deep review's hygiene list:
- The demo replay (a still recognition replayed as if it were live tracking) moves
out of app.py into demo_replay.py, and every payload it produces is marked
`synthetic: true`. It had been committed inside an unrelated feature commit, which
made a film-making device look like part of the server.
- `/v1/health` reports the OCR engine and whether it is available. Without it an
operator could not tell a broken OCR from a shelf with no readable tags.
- A failed OCR pass is counted and logged instead of swallowed: `TagService.stats()`
now carries `passes_failed` and `last_pass_error`.
- The live classification budget goes back to the measured production defaults
(16 in flight, 2 attempts); a demo walk over a nearly static shelf asks for more
through `--live-inflight` / `--live-attempts` rather than silently changing the
default for everyone.
162 tests pass.
Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>
