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_data_maturity_truth_gate_v1.py

@@ -0,0 +1,57 @@
+from __future__ import annotations
+
+import argparse
+import json
+from pathlib import Path
+from typing import Any
+
+
+ROOT = Path(__file__).resolve().parents[1]
+DEFAULT_PATH = ROOT / "Temp" / "data_maturity_truth_gate_v1.json"
+
+
+def _load(path: Path) -> dict[str, Any]:
+    if not path.exists():
+        return {}
+    try:
+        obj = json.loads(path.read_text(encoding="utf-8"))
+    except Exception:
+        return {}
+    return obj if isinstance(obj, dict) else {}
+
+
+def main() -> int:
+    ap = argparse.ArgumentParser()
+    ap.add_argument("--json", default=str(DEFAULT_PATH))
+    args = ap.parse_args()
+
+    path = Path(args.json)
+    if not path.is_absolute():
+        path = ROOT / path
+    payload = _load(path)
+
+    failed: list[str] = []
+    if float(payload.get("data_integrity_score") or 0) < 100.0:
+        failed.append("DATA_INTEGRITY_LT_100")
+    if float(payload.get("required_field_completeness_pct") or 0) < 100.0:
+        failed.append("REQUIRED_FIELD_COMPLETENESS_LT_100")
+    if int(payload.get("pending_critical_category_count") or 0) != 3:
+        failed.append("PENDING_CATEGORY_COUNT_MISMATCH")
+    if float(payload.get("data_maturity_score") or 0) < 95.0:
+        failed.append("DATA_MATURITY_LT_95")
+    if int(payload.get("no_false_100_claim_count") or 0) != 0:
+        failed.append("FALSE_100_CLAIM_PRESENT")
+
+    result = {
+        "formula_id": "DATA_MATURITY_TRUTH_GATE_VALIDATOR_V1",
+        "status": "OK" if not failed else "FAIL",
+        "failed": failed,
+        "gate": payload.get("gate"),
+        "data_maturity_score": payload.get("data_maturity_score"),
+    }
+    print(json.dumps(result, ensure_ascii=False, indent=2))
+    return 1 if failed else 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())