chore(rebar): Pier_T_rebar 작업 폴더 초기 구성 및 외부 의존 파일 통합

- Code\rebar_pipeline, review_pipeline, pier-program을 정션에서 실제 폴더로 전환
- Code\rhino_mcp 및 CLAUDE_rhino배경.md 추가, .mcp.json은 PYTHONPATH로 새 위치 사용
- pier-program 내부 .git 제거(이력은 backup\pier-program_20261028.bundle에 보관)
- worktree 가이드 반영(CLAUDE.local.md, HANDOFF.md)
- D:\Rhino-MCP 경로 참조를 새 위치로 치환

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

Code/교각모델링앱/tools/make_variability.py

@@ -0,0 +1,26 @@
+"""Write variability.json (draft classes of every bundle, engine/variability.py) into each protected template that lacks one,
+or into all with --force (2026-10-16). usage: python tools/make_variability.py [--force]"""
+import json
+import sys
+from pathlib import Path
+
+APP = Path(__file__).resolve().parents[1]
+sys.path.insert(0, str(APP))
+from engine import variability  # noqa: E402
+
+force = "--force" in sys.argv
+root = APP / "data" / "_템플릿"
+for d in sorted(root.iterdir()):
+    if d.name.startswith("_") or not (d / "params.json").exists():
+        continue
+    out = d / "variability.json"
+    if out.exists() and not force:
+        print("keep", d.name)
+        continue
+    P = json.loads((d / "params.json").read_text(encoding="utf-8"))
+    E = json.loads((d / "expected.json").read_text(encoding="utf-8"))
+    v = variability.build(P, E)
+    out.write_text(json.dumps(v, ensure_ascii=False, indent=1), encoding="utf-8")
+    from collections import Counter
+    c = Counter(s["grade"] for s in v["sections"].values() if not s["info"])
+    print("wrote", d.name, len(v["sections"]), "bundles", dict(c), "info", sum(s["info"] for s in v["sections"].values()))