The deadline consumer runs in a long-lived task outside any request, so
a timeout that ended the match raised 'No TortoiseContext is currently
active' in save_match_result before the state was saved: the game stayed
stuck on the last turn and the entry retried forever. It only surfaced
on the match-deciding turn; ordinary timeouts and human plays were fine.
Bind the Tortoise context before persisting a finished match (optional
context_binder wired to TortoiseMixin.ensure_context), and back off to
the heartbeat when a due entry fails instead of hot-looping on it.
Move the game-independent machinery (lobby, live-game store, websocket,
deadline scheduler, match history, leaderboards) into a new
tavolo-platform distribution behind a GameEngine contract, the scopone
scientifico rules plus a platform adapter into tavolo-scopone, and keep
only the composition root in tavolo-app. The three distributions share
the tavolo namespace (PEP 420, kaya-style monorepo).
Match history becomes fully generic: Match carries the engine's result
JSON and MatchPlayer points/details instead of scopone-shaped team
columns (migration 3 backfills existing rows). Lobby creation takes an
opaque per-game options object and websocket actions dispatch to the
session's engine.
Tests: platform suite runs against a DummyEngine toy game, scopone
keeps the rules tests plus new adapter tests, server/tests covers the
wired stack end to end (194 tests, was 143).
woggioni