Automobility: Unofficial Port

Patch release for the unofficial Minecraft Java 26.2 Fabric port.

Fixed

• Preserved all autopilot heading vectors when routes are saved and loaded.
• Counted multiple copies in the same inventory stack correctly for Auto Mechanic Table recipes with repeated ingredients.
• Fixed the sticky-slope grace timer and block sampling at negative coordinates.
• Prevented a false first-tick vehicle collision measurement after an automobile is spawned or loaded.
• Guarded autopilot obstacle checks against stale hitboxes and clamped attachment animation states to valid values.
• Prevented client-side automobile creation from calling Fabric's server-only entity tracking API, which disconnected worlds containing existing vehicles with a network protocol error.

Changed

• Limited periodic client state uploads to the locally driven automobile.
• Validated automobile state packet sizes and numeric values, capped packet size, and rate-limited accepted client syncs.
• Distributed automobile state through actual entity tracking and reduced visual state updates to the existing four-tick interpolation interval.
• Added automated regression tests for autopilot serialization, repeated recipe ingredients, and network state validation.