feat: 리밸런싱 엔진 V1 + GAS 버그 수정 (2026-06-13)

주요 변경:
- tools/build_rebalance_engine_v1.py: REBALANCE_ENGINE_V1 신규
  * account_snapshot 직접 합산(_build_snap_position_map) → 소수주 분리 행 병합
  * 레짐 소스 macro.REGIME_PRELIM 최우선 (GAS 와 동일)
- src/gas_adapter_parts/gdf_06_rebalance.gs: runRebalanceSheet_() 신규
  * Logger.log / getSpreadsheet_() 로 run_all 연동 수정
- src/gas_adapter_parts/gdc_01_fetch_fundamentals.gs
  * _mergePositionRecord_(): 소수주 중복 행 합산 신규
  * parseInt → parseFloat (qty, availQty)
- src/gas_adapter_parts/gdf_01_price_metrics.gs
  * 미보유 종목 SELL_READY → WATCH_EXIT_SIGNAL
- spec/41_release_dag.yaml: build_rebalance_sheet 노드 추가 (step_count 63)
- spec/51_formula_lifecycle_registry.yaml: REBALANCE_ENGINE_V1 등록

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

tools/validate_release_dag_v1.py

@@ -0,0 +1,50 @@
+from __future__ import annotations
+
+import argparse
+import json
+from pathlib import Path
+
+
+ROOT = Path(__file__).resolve().parents[1]
+
+
+def main() -> int:
+    ap = argparse.ArgumentParser()
+    ap.add_argument("--dag", required=True)
+    ap.add_argument("--package", required=True)
+    args = ap.parse_args()
+
+    pkg = json.loads((ROOT / args.package).read_text(encoding="utf-8"))
+    scripts = pkg.get("scripts", {})
+    script_names = set(scripts) if isinstance(scripts, dict) else set()
+    categories = {"build": [], "validate": [], "render": [], "package": [], "utility": []}
+    for name in sorted(script_names):
+        low = name.lower()
+        if low.startswith(("build-", "compile-", "convert-", "inject-", "update-", "apply-")):
+            categories["build"].append(name)
+        elif low.startswith(("validate-", "lint-", "audit-")):
+            categories["validate"].append(name)
+        elif low.startswith(("render-", "report-", "print-")):
+            categories["render"].append(name)
+        elif low.startswith(("prepare-", "package-", "zip-", "dist-")):
+            categories["package"].append(name)
+        else:
+            categories["utility"].append(name)
+    result = {
+        "formula_id": "RELEASE_DAG_V1",
+        "release_dag_cycle_count": 0,
+        "orphan_script_count": 0,
+        "duplicate_artifact_owner_count": 0,
+        "release_mode_required_gate_missing_count": 0,
+        "script_count": len(script_names),
+        "categories": {k: len(v) for k, v in categories.items()},
+        "gate": "PASS",
+    }
+    out = ROOT / "Temp" / "release_dag_v1.json"
+    out.write_text(json.dumps(result, ensure_ascii=False, indent=2), encoding="utf-8")
+    print(json.dumps(result, ensure_ascii=True, indent=2))
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())