Lukas bd6170722a feat(geo): add cache hit/miss metrics and prewarm support ...

- Add _hits/_misses counters to GeoCache for cache hit/miss ratio tracking
- Reset counters on clear()
- Count hits before misses in lookup_batch() to avoid interleaving
- Add synchronous prewarm() using asyncio.create_task for fire-and-forget
- Add hits/misses fields to GeoCacheStatsResponse model
- Add TestCacheMetrics (5 tests), TestPrewarm (3 tests), TestLargeBanList (2 tests)
- Fix _make_async_db() mock: db.execute is not async, returns ctx manager
- Move collections.abc to TYPE_CHECKING block (TC003)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

2026-05-03 00:35:47 +02:00

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