fix: redraw packet cards on return and restart a stuck blackjack clock

[Drefvelin]

Summary

• Packet cards are spawned again when a player reloads their chunk or walks back into display range. A metadata update cannot recreate an entity the client already dropped.
• An automatic blackjack table with a legal bet and no running countdown starts that countdown again. Claiming the shoe and then leaving used to cancel the clock and leave the chips sitting there, which is the stuck window on The Bog.
• Leaving after bets close already forfeits the stake to the house tray, or to a private dealer. Leaving while the window is still open still refunds the bet. That rule is unchanged.

Test plan

• mvn -B --no-transfer-progress -P'!deploy-live' test (1126 tests)
• PR build stamps a DEV-YYYYMMDD-HHMM jar and passes
• Walk out of a card chunk and back in; the cards are visible without waiting for another update
• On an automatic blackjack table, bet, claim the shoe, then leave; the countdown starts again and the hand deals
• Bet, wait until the window closes, then leave; the stake stays and is paid to the dealer

Made with Cursor

[coderabbitai]

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📥 Commits

Reviewing files that changed from the base of the PR and between 1c7a7f1 and 55b5f8e.

📒 Files selected for processing (6)

• src/main/java/net/tfminecraft/games/display/DisplayManager.java
• src/main/java/net/tfminecraft/games/game/BlackjackGame.java
• src/main/java/net/tfminecraft/games/game/Game.java
• src/main/java/net/tfminecraft/games/table/TableManager.java
• src/test/java/net/tfminecraft/games/display/DisplayManagerTest.java
• src/test/java/net/tfminecraft/games/game/BlackjackGameTest.java

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[Drefvelin]

Superseded by #35. This pull request came from a fork, so the build could not read the pinned-dependency token and failed in prepare-release. The same commit is on `fix/blackjack-forfeit-and-card-redraw` in this repository.