Cache stats
**What:** Read-only snapshot of both cache tiers (movie docs + feed pages) for dev/QA.
**Auth:** None.
**Params:** None.
**Returns:** `data` with cache counts and TTL info, or `{ dbConnected: false }` when Mongo is unavailable.
Authentication
AuthorizationBearer
Bearer authentication of the form Bearer <token>, where token is your auth token.
Response
OK
ok
data