anti f1e14280c0 perf: 1s TTL cache for /health DB probe and /config state reads ...

Locust hit /health and /config on every @task(3), so each request was
firing repo.get_total_logs() and two repo.get_state() calls against
aiosqlite — filling the driver queue for data that changes on the order
of seconds, not milliseconds.

Both caches follow the shape already used by the existing Docker cache:
- asyncio.Lock with double-checked TTL so concurrent callers collapse
  into one DB hit per 1s window.
- _reset_* helpers called from tests/api/conftest.py::setup_db so the
  module-level cache can't leak across tests.

tests/test_health_config_cache.py asserts 50 concurrent callers
produce exactly 1 repo call, and the cache expires after TTL.

2026-04-17 15:05:18 -04:00

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