Client crashes on shutdown with Watchdog timeout (Baritone CachedWorld$PackerThread hang) [Bug]

[FFKingRitesh]

Describe the bug

Meteor Client Error.txt

When quitting the game, the client hangs on shutdown and eventually crashes with java.lang.Error: Watchdog (Client shutdown from post-main).

According to the thread dump in the crash log, Baritone's background world caching threads (baritone.cache.CachedWorld$PackerThread) stay active saving region files and fail to terminate before the Minecraft client's shutdown watchdog timer expires.

Meteor Client Error.txt

Steps to reproduce

1. Launch the game with Meteor Client / Baritone loaded.
2. Join a world or server so Baritone initializes world caching threads in the background.
3. Save and quit or close the client.
4. Observe the client hanging on shutdown for ~30 seconds until the Watchdog forces a crash.

Meteor Version

26.2

Minecraft Version

26.2

Operating System

Windows

Before submitting a bug report

• This bug wasn't already reported (I have searched bug reports on GitHub).

• This is a valid bug (I am able to reproduce this on the latest dev build).