`push_replay_on_win` listens for `GameWonEvent` and spawns a
fire-and-forget `AsyncComputeTaskPool` task that calls
`SyncProvider::push_replay`. The game loop never blocks on the
network round-trip; failures log a warning but never abort the win
flow because the replay is already persisted locally by
`game_plugin::record_replay_on_win`.
`UnsupportedPlatform` (LocalOnlyProvider) is silently absorbed in
the same way the existing `push_on_exit` path handles it — local
players don't see a server error every time they win.
Empty-recording guard mirrors `record_replay_on_win`: synthesised
win events from XP / streak / weekly-goal tests must not trigger an
upload.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
funman300
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