[An16og]

Summary

Restores the "clear exhaustion" behavior of /feed, which was lost when Minecraft removed FoodData#setExhaustion.

Fixes #306

Problem

Newer Minecraft versions no longer expose a setter for exhaustion on FoodData; it can only be added to through the public API. FeedCommand had the setExhaustion(0) call commented out, so /feed restored food level and saturation but left any accumulated exhaustion in place.

Changes

• mixin/FoodDataAccessor.java (new): an @Accessor mixin that exposes a setter for the private exhaustionLevel field of FoodData.
• essential_commands.mixins.json: registers FoodDataAccessor.
• FeedCommand.java: calls the accessor to reset exhaustion to 0 after setting food level and saturation, and removes the old commented-out line.

Testing

• ./gradlew build succeeds
• Game starts without a mixin error (a wrong field name would fail on startup because defaultRequire is 1)
• /feed on a player with low food and accumulated exhaustion restores food and saturation, and exhaustion no longer carries over

Notes

The accessor targets the Mojang-mapped field name exhaustionLevel. I couldn't verify it against the target Minecraft version in my environment, so please confirm it during testing.