fix: return one grave insurance ticket stored in a bundle

[Drefvelin]

Summary

• On death, if no loose insurance ticket can be bound, one ticket is taken out of a bundle (including a bundle inside a bundle) before the grave is saved.
• That ticket is bound to the new grave and added back on respawn, the same way a ticket split off a stack already is. Other items in the bundle stay in the grave.

Test plan

• mvn -P'!deploy-live' test (288 tests)
• PR build on the dev version succeeds
• Die with the only ticket inside a bundle, respawn, and right-click the returned ticket to recover the grave
• A stack of tickets inside a bundle returns one bound ticket and leaves the rest in the bundle
• A loose ticket still binds as before, and the bundle is left alone

Made with Cursor

Summary by CodeRabbit

• New Features

  • Insurance tickets in inventory slots or bundles can now be used to insure a grave when no eligible ticket is found in the stash. One ticket is removed and returned on respawn; remaining tickets stay in place.
  • Tickets already bound to graves that still exist are skipped.

• Documentation

  • Clarified how loose and bundled insurance tickets are handled during grave processing.

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📥 Commits

Reviewing files that changed from the base of the PR and between 97718ab and 7c68334.

📒 Files selected for processing (5)

• src/main/java/net/tfminecraft/rpcharacters/grave/GraveDeathListener.java
• src/main/java/net/tfminecraft/rpcharacters/grave/GraveInsuranceExtract.java
• src/main/java/net/tfminecraft/rpcharacters/grave/GraveInsuranceTickets.java
• src/main/resources/graves.yml
• src/test/java/net/tfminecraft/rpcharacters/grave/GraveInsuranceExtractTest.java

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