- purge route: include a "failed" key in the 200 body listing requested doc
types that were not purged, so Astrolabe knows consent isn't yet enforced
for them (scanner backstop still catches up)
- tests: add @pytest.mark.unit / module-level pytestmark to the new test
modules so they run under `pytest -m unit`; add a partial-failure route test
- capabilities: comment why the cache is keyed per-user despite a global value
- semantic/scanner: doc/comment clarifications (sorted-order, eviction timing)
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
