One TTL-memoization shape (Redis-backed where configured, in-memory
otherwise, None results never cached, .invalidate() per key).
install_profile_service capability probe and resource_tier_service tier
probe drop their hand-rolled module-level timestamp dicts. Ratchet with
a documented allowlist for caches whose semantics genuinely differ
(lock-guarded non-JSON snapshot, cache-forever catalog, the F1
remote-index family).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
