TaCZ First Person Compat

Reworked the compatibility strategy after 0.2.0 did not restore TaCZ's correct first-person view.

Changes:
- Removed the 0.2.0 RenderHandEvent reroute because it could leave TaCZ looking the same as it does without the compatibility mod.
- Added a First-person Model auto-disable bridge.
- The mod now registers TaCZ gun item types into First-person Model's own auto-disable item list.
- This lets TaCZ use its normal first-person renderer while First-person Model steps aside for TaCZ guns.
- Kept the dynamic TaCZ IGun detection so First-person Model's player body renderer is disabled while TaCZ guns are active.
- Re-registers the TaCZ gun item types during client ticks so the fix survives First-person Model config reload/late initialization.