feat: clothing lane, character sources, and DCC bridges

Bulk import of the working lanes that were living untracked on the PC.

Content:
- characters/  Lena/male body lanes, bakes, texture work, run logs
- clothing/    garment pipeline, configs, gates, contract docs
- garments/    MD-authored garment sources (.zprj/.zpac)
- UAL-Lib/     Universal Animation Library 2 source (.blend/.fbx/.glb)
- tools/       blender_bridge, iclone_bridge, md_bridge, tailor, glm_agent
- docs/, plans/, dev/, .agents/plans/

Repo hygiene:
- .gitattributes: LFS now covers .blend, .zprj, .zpac, .obj, .npy and the
  Reallusion .iAvatar/.ccAvatar/.ccRestore containers. Without this the
  ~3.8 GB in this commit would land as raw blobs. .png/.jpg are left out
  on purpose — ~250 are already tracked raw and converting them would
  rewrite every one without shrinking history.
- .gitignore: exclude /accurig/ (~1 GB AccuRig program files, redistributable
  from Reallusion, nothing authored here) and /dev/null/ (git-lfs hook copies
  dropped by a `>/dev/null` redirect on Windows).

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

characters/female/lena_nude/hires_claude/06d_spot_melt.py

@@ -0,0 +1,89 @@
+# Stage 6d: self-locating spot melt of remaining flaps in the thigh gap.
+# Finds high-roughness verts inside the gap box (an open-slit flap the membrane pulled),
+# grows a 2-ring collar, melts. Prints the cluster it found so the fix is auditable.
+#   blender --background --python 06d_spot_melt.py -- <in.blend> <out.blend>
+import bpy, sys, time
+import numpy as np
+
+argv = sys.argv[sys.argv.index("--") + 1:]
+BLEND, OUT = argv[0], argv[1]
+t0 = time.time()
+
+BOX = lambda co: (np.abs(co[:, 0]) < 0.075) & (co[:, 2] > 0.345) & (co[:, 2] < 0.475)
+ROUGH_THR = 0.0012
+MELT_ITERS = 80
+
+
+def log(m):
+    print(f"[spot {time.time()-t0:6.1f}s] {m}", flush=True)
+
+
+bpy.ops.wm.open_mainfile(filepath=BLEND)
+ob = max([o for o in bpy.data.objects if o.type == 'MESH'],
+         key=lambda o: len(o.data.vertices))
+me = ob.data
+n_v = len(me.vertices)
+co = np.empty(n_v * 3)
+me.vertices.foreach_get("co", co)
+co = co.reshape(-1, 3)
+
+n_e = len(me.edges)
+ev = np.empty(n_e * 2, dtype=np.int32)
+me.edges.foreach_get("vertices", ev)
+ev = ev.reshape(-1, 2)
+order = np.concatenate([ev[:, 0], ev[:, 1]])
+nbr = np.concatenate([ev[:, 1], ev[:, 0]])
+srt = np.argsort(order, kind="stable")
+o_s = order[srt]
+n_s = nbr[srt]
+ptr = np.searchsorted(o_s, np.arange(n_v + 1))
+cnt = np.maximum(ptr[1:] - ptr[:-1], 1)
+
+
+def smooth_field(Q, iters):
+    X = Q.copy()
+    for _ in range(iters):
+        acc = np.zeros_like(X)
+        np.add.at(acc, o_s, X[n_s])
+        X = acc / cnt[:, None]
+    return X
+
+
+sm = smooth_field(co, 8)
+rough = np.linalg.norm(co - sm, axis=1)
+box = BOX(co)
+hot = box & (rough > ROUGH_THR)
+log(f"box {box.sum()} verts, hot {hot.sum()} (rough>{ROUGH_THR})")
+if hot.sum():
+    hc = co[hot]
+    log(f"hot cluster: x [{hc[:,0].min():+.4f}..{hc[:,0].max():+.4f}] "
+        f"y [{hc[:,1].min():+.4f}..{hc[:,1].max():+.4f}] "
+        f"z [{hc[:,2].min():+.4f}..{hc[:,2].max():+.4f}]")
+    m = hot.copy()
+    for _ in range(2):
+        h = m[ev[:, 0]] | m[ev[:, 1]]
+        m2 = m.copy()
+        m2[ev[:, 0]] |= h
+        m2[ev[:, 1]] |= h
+        m = m2
+    sidx = np.nonzero(m)[0]
+    Q = co.copy()
+    for _ in range(MELT_ITERS):
+        acc = np.zeros_like(Q)
+        np.add.at(acc, o_s, Q[n_s])
+        mean = acc / cnt[:, None]
+        Q[sidx] = 0.5 * Q[sidx] + 0.5 * mean[sidx]
+    d = np.linalg.norm(Q - co, axis=1)
+    log(f"melted {len(sidx)} verts, max move {d.max():.4f}")
+    me.vertices.foreach_set("co", Q.reshape(-1))
+    me.update()
+    if me.has_custom_normals:
+        vn = np.empty(n_v * 3, dtype=np.float32)
+        me.vertices.foreach_get("normal", vn)
+        me.normals_split_custom_set_from_vertices(vn.reshape(-1, 3))
+else:
+    log("nothing hot — no melt applied")
+bpy.context.preferences.filepaths.save_version = 0  # no .blend1 autosave
+bpy.ops.wm.save_as_mainfile(filepath=OUT)
+log(f"WROTE {OUT}")
+print("SPOT_DONE")