Gear wardrobe state (Phase B): vesper geared with MODELBEAST boxing gloves + headgear

- gear GLBs generated on MODELBEAST (flux product shot -> bg_remove ->
  trellis_mac), staged in foitin_assets/gear/
- pipeline: --attach bone-parents rigid gear (armature-scale compensated,
  '|'-separated spec); render_geared.sh holds calibrated transforms
- vesper: 3-state degradation geared -> base -> torn; specials knock gear
  off first, then shred clothes; kachujin stays 2-state (per-character data)
- spec doc: wardrobe section in CHARACTER_SPEC.md

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

characters/_spec/CHARACTER_SPEC.md

@@ -8,11 +8,13 @@ one JSON per move instead of the binary `BKB!ZONE/GEOM/DAT2` sidecars.
 
 ```
 characters/<id>/
-  manifest.json            identity, stats, move bindings
+  manifest.json            identity, stats, move bindings, wardrobe states
   portrait.png             select-screen / HUD portrait
   moves/<move>/
     data.json              frame data (timing, boxes, damage, root motion)
-    frames/0000.png ...    sprite sequence, alphabetical order
+    frames/0000.png ...    sprite sequence, alphabetical order (base state)
+    frames@torn/ ...       optional wardrobe-state variants (same frame count;
+    frames@geared/ ...     missing variants fall back to base per-move)
 ```
 
 ## Conventions
@@ -49,6 +51,21 @@ characters/<id>/
 - `command_moves`: checked before normals; `motion` is numpad notation
   (`[2,3,6]` = quarter-circle-forward), completed within 14 ticks.
 
+## Wardrobe (battle damage)
+
+```json
+"wardrobe": { "states": ["geared", "base", "torn"], "tear_below_hp": 0.35 }
+```
+
+Ordered degradation states. Getting hit by a move with `"tears": true`
+advances one state (gear knocked off → clothes shredded); dropping below
+`tear_below_hp` × max health forces the final state. States map to
+`frames@<name>/` variant dirs per move ("base" = the default `frames/`).
+Render variants with `pipeline/render_moves.py --torn ...` (alpha-hole
+shredding) or `--attach ...` (bone-parented gear, see
+`pipeline/render_geared.sh` for calibrated specs). Per-character: a fighter
+with `["base","torn"]` simply has no gear stage.
+
 ## moves/<move>/data.json
 
 ```json

characters/vesper/manifest.json

@@ -9,6 +9,7 @@
   "sprite_scale": 1.25,
   "wardrobe": {
     "states": [
+      "geared",
       "base",
       "torn"
     ],