chore(agents): migrate to agents.md protocol — .agents/ wiki/plans/rules/skills

Root AGENTS.md is now a thin entry point + knowledge map; the batch-workflow
detail it duplicated already lived in .claude/skills/animation/SKILL.md.
Folded docs/ (dances registry + iclone-bridge stub), root plans/, and
devops-reports/ into .agents/wiki/ and .agents/plans/ per the per-repo .agents/
convention. Added .agents/SOUL.md, .agents/AGENTS.md, wiki/ARCHITECTURE.md,
wiki/architecture/, and wiki/master-plan.md (derived from the closed plans +
the dance registry's live ceremony-slot table). Fixed doc-path references in
exchange/GUIDE.md, the animation skill, and the iclone-bridge stub. All moves
via mv (git detected as renames) — no content deleted.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

README.md

@@ -41,7 +41,7 @@ into the game repo.
   - `kevin_retarget.py` — Kevin Iglesias Unity FBX (`B-*` rig; hardcoded target path — non-portable)
   - `mocap_retarget.py` — MediaPipe pose JSON → GLB (rotation solving, no source armature)
   - `bake_run_punch.mjs` — composite upper/lower clip baking reference
-- `plans/` — pipeline design docs (animation generation pipeline, skills adoption)
+- `AGENTS.md` / `.agents/` — agent context (identity, wiki, plans, rules); see `AGENTS.md` for the knowledge map
 
 ## Canonical target rig