DoxLeaning (TaCZ Recommendation)

Fixes

- Leaning into thin walls (iron bars, glass panes, fences, lone posts) no longer lets you walk through them: the

  leaned collision box is checked against real block shapes instead of three centre rays.

- Guns whose bullets aren't vanilla projectiles (e.g. Scorched Guns) now fire from the leaned position instead of

  into the wall you're leaning past.

- [2.1.0 only] No more sliding left/right while leaning on Sable / Create Aeronautics sub-levels: near a sub-level

  the lean doesn't move your collision box (camera and shots still lean).