Various sheep shearing fixes:
- Fleece no longer disappears after a server restart
- Shearing no longer counts as a shot hit or goes through the combat path
- Thrown knives wound instead of shearing
- Four quarters pay exactly the authored wool amount
- Timers that ran out during a save now fire on load, so sheep and cows cannot get stuck
- Wool counts as a harvest and overflows into the backpack
- Fur bake only runs on models labelled Fleece and re-runs when its version changes
- Debug shave scan compiles out of fur materials that do not use it
- Regenerated the manifest, livestock prefabs are back
- Tests updated for wild sheep rule, plus new tests for all of the above