From the IC8 review of #768 (P2s), each with a test that fails before:
- A tile read from disk keeps its real age in memory, and the trim rewrite
keeps the file's mtime, so nothing is served past the 24 h TTL.
- The disk cache is swept in the background at most every 15 min: expired
tiles go, then the oldest past 1 GiB. Coverage zooms the app never
requests (z6-10) are refused with a 400, and layer names are matched as
own keys only.
- The tests run against a temporary cache directory (a test seam) instead
of writing into and deleting from the developer's real .gev-cache.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
