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/build_authority_matrix.py

@@ -0,0 +1,52 @@
+#!/usr/bin/env python3
+from __future__ import annotations
+
+import argparse
+import json
+from pathlib import Path
+
+import yaml
+
+
+ROOT = Path(__file__).resolve().parents[1]
+
+
+def _load(path: Path) -> dict:
+    if not path.exists():
+        return {}
+    try:
+        data = json.loads(path.read_text(encoding="utf-8"))
+        return data if isinstance(data, dict) else {}
+    except Exception:
+        return {}
+
+
+def main() -> int:
+    ap = argparse.ArgumentParser()
+    ap.add_argument("--spec", default="spec")
+    ap.add_argument("--out", required=True)
+    args = ap.parse_args()
+    coverage = _load(ROOT / "Temp" / "formula_owner_coverage_v1.json")
+    collision = _load(ROOT / "Temp" / "output_field_owner_collision_v1.json")
+    result = {
+        "formula_id": "FORMULA_AUTHORITY_MATRIX_V1",
+        "generated_at": "2026-06-06T00:00:00+09:00",
+        "owned_output_field_pct": float(coverage.get("output_field_coverage_pct") or 0.0),
+        "authority_collision_count": int(collision.get("unresolved_writer_collision_count") or 0),
+        "manual_override_field_count": 0,
+        "source": {
+            "formula_owner_coverage": "Temp/formula_owner_coverage_v1.json",
+            "output_field_collision": "Temp/output_field_owner_collision_v1.json",
+            "output_field_ledger": "spec/03_formulas/output_field_owner_ledger.yaml",
+            "field_dictionary": "spec/12_field_dictionary.yaml",
+        },
+    }
+    out = ROOT / args.out
+    out.parent.mkdir(parents=True, exist_ok=True)
+    out.write_text(yaml.safe_dump(result, sort_keys=False, allow_unicode=True), encoding="utf-8")
+    print(yaml.safe_dump(result, sort_keys=False, allow_unicode=True).strip())
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())