Stage 6C — Reconciliation Hook & Full Tournament Integration

[KineticTactic]

Starts after: Stages 6B complete. Stage 5 must also be merged.

What this is: The wiring that connects room completion → bracket advancement → round detection. Everything before this stage was built in isolation; this stage proves they compose correctly end-to-end.

Tasks

1. Complete Reconciliation Worker tournament hook

   • In the reconciliation_queue worker: after writing ContestRoom final results to MongoDB, check if contestId belongs to a knockout contest.
   • If yes: call the bracket advancement hook from Stage 6B.
   • Works for both 1v1 and 3v3 rooms (maps team result to ContestStanding).

2. Full pipeline stress test

   • 8-player knockout (3 rounds). All real CF accounts.
   • Verify: correct participants advance at each round, bracket state is correct at every step, final winner recorded in Contest.winner.
   • Verify: all room:<id>:* Redis keys deleted after each room ends.
   • Verify: all contest:<id>:* Redis keys deleted after the contest completes.

3. Redis cleanup verification

   • After every room ends: all room:<id>:* keys deleted.
   • After tournament completes: all contest:<id>:* keys deleted.

Testing Gate

• Full 8-player knockout stress test passes without errors.
• Two rooms finishing simultaneously does not double-advance anyone or trigger duplicate round completion.
• All Redis keys cleaned up after full tournament.
• Contest.winner populated correctly at the end.

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