- When the last human presses leave on a CPU table (even mid-hand), the table
is deleted right away instead of lingering with CPUs only; friends / cash-only
tables keep the existing 30-minute idle cleanup
- Spectators still watching get a "テーブルが終了しました" notice, and the lobby
updates immediately
- Don't show the "接続が切れました" banner when the page disconnects on purpose
(closed or missing table)
- Test for the close condition; README notes the behavior
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>