DoxHitbox

Fixes (when DoxAmmo is not installed)

- Gun hits now deal damage by the part they hit: head uses the gun's own TaCZ headshot multiplier,

  torso x1.0, arms/hands/legs/feet x0.75. Before, limbs took the same damage as the torso and

  headshots used TaCZ's vanilla-box split. Tunable in config/doxhitbox/gun_parts.json.

  With DoxAmmo installed nothing changes - DoxAmmo still owns gun damage.

- Leaning players (DoxLean) are hit where they are drawn, not in the empty spot they leaned out of.

- Players holding a TaCZ gun get arm hitboxes in the aiming pose; TaCZ prone uses the prone boxes.

- Shots into empty space beside cows, chickens, spiders and other non-humanoids no longer count.

Other fixes

- The server now accepts the pose snapshots observers send (they were all being dropped),

  so server-side hits use the pose you actually see.

- Melee resolves to the first part the blade touched, not where it ended up.

- Better Combat reach no longer flickers shorter mid-swing.

Added

- DoxPoseHooks.addPoseSync: several mods can add pose-stream targets.

Reload / eject: DoxHitbox never touches reloading. The eject-magazine key belongs to DoxAmmo.