pwo.async_test runs every test in a fresh event loop and TortoiseMixin
builds one TortoiseContext per loop. Dropping the previous context when
the loop changed orphaned its aiosqlite connections; their non-daemon
worker threads then blocked threading._shutdown forever, so the suite
printed OK but the interpreter never exited.
Add TortoiseMixin.aclose() and a tests.helpers.async_test wrapper that
closes the context in a finally on the test's own loop, and switch the
test modules over to it.
Turn auto-play and hand-end auto-continue were process-local asyncio
tasks armed only by client connects and state broadcasts: with no
sockets connected the next turn's timer was never armed, a hand-end
timer died with its worker, and neither survived a pod restart.
Deadlines are now driven by the absolute timestamps persisted on the
game state and enqueued in a shared Redis sorted set. Every worker runs
a consumer that fires due entries under the per-game lock after
revalidating them against the live state, so timeouts no longer depend
on any player being connected and survive the death of any worker.
Delivery is at-least-once: entries are removed only after processing,
and revalidation makes duplicate deliveries no-ops.
Queue entries carry the deadline as integer epoch milliseconds, which
also serves as the revalidation token, and the score derives from the
same value.
woggioni