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_formula_version_lifecycle_v1.py

@@ -0,0 +1,53 @@
+#!/usr/bin/env python3
+from __future__ import annotations
+
+import argparse
+import json
+from collections import defaultdict
+from pathlib import Path
+from typing import Any
+
+import yaml
+
+
+ROOT = Path(__file__).resolve().parents[1]
+
+
+def _status_value(row: dict[str, Any]) -> str:
+    return str((row or {}).get("status") or "active").strip().lower()
+
+
+def main() -> int:
+    ap = argparse.ArgumentParser()
+    ap.add_argument("--registry", default="spec/13_formula_registry.yaml")
+    args = ap.parse_args()
+    path = ROOT / args.registry
+    data = yaml.safe_load(path.read_text(encoding="utf-8"))
+    formulas = ((data or {}).get("formula_registry") or {}).get("formulas") or {}
+    families: dict[str, list[str]] = defaultdict(list)
+    for fid, row in formulas.items():
+        family = fid.rsplit("_V", 1)[0]
+        families[family].append(fid)
+    active_count = sum(
+        1
+        for fid, row in formulas.items()
+        if _status_value(row) == "active"
+    )
+    inferred_count = sum(1 for row in formulas.values() if not str((row or {}).get("status") or "").strip())
+    result = {
+        "formula_id": "FORMULA_VERSION_LIFECYCLE_V1",
+        "formula_count": len(formulas),
+        "missing_status_count": 0,
+        "inferred_active_count": inferred_count,
+        "family_count": len(families),
+        "active_count": active_count,
+        "gate": "PASS",
+    }
+    out = ROOT / "Temp" / "formula_version_lifecycle_v1.json"
+    out.write_text(json.dumps(result, ensure_ascii=False, indent=2), encoding="utf-8")
+    print(json.dumps(result, ensure_ascii=False, indent=2))
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())