TaCZ First Person Compat

Changes:
- Added support for items that implement TaCZ's IAnimationItem interface.
- The mod now detects TaCZ IGun items and TaCZ IAnimationItem items when deciding whether First-person Model should step aside.
- The auto-disable bridge now registers every loaded TaCZ animated item type it can find in the item registry, not only gun item types from GunItemManager.
- This is intended to cover TaCZ add-on melee weapons and other special animated items, such as add-on knives, that are built on TaCZ's animation/render API.
- Kept the working 0.3.0 gun behavior.
- Still re-applies the auto-disable bridge during client ticks so the fix survives First-person Model reloads/late initialization.