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/normalize_formula_registry_v2.py

@@ -0,0 +1,48 @@
+#!/usr/bin/env python3
+from __future__ import annotations
+
+import argparse
+import yaml
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[1]
+
+def main() -> int:
+    ap = argparse.ArgumentParser()
+    ap.add_argument("--in", dest="input_file", default="spec/13_formula_registry.yaml")
+    ap.add_argument("--out", dest="output_file", default="spec/03_formulas/formula_registry.normalized.yaml")
+    args = ap.parse_args()
+
+    in_path = ROOT / args.input_file
+    out_path = ROOT / args.output_file
+
+    if not in_path.exists():
+        print(f"Input registry file not found: {in_path}")
+        return 1
+
+    try:
+        data = yaml.safe_load(in_path.read_text(encoding="utf-8"))
+    except Exception as e:
+        print(f"Error parsing input YAML: {e}")
+        return 1
+
+    # Simple validation and copying to normalized version
+    # Each formula should have owner, inputs, outputs, etc.
+    formulas = data.get("formula_registry", {}).get("formulas", {})
+    
+    # Let's ensure the output structure is clean
+    normalized = {
+        "schema_version": "formula_registry.normalized.v2",
+        "description": "Normalized formula registry for QEDD development framework",
+        "formulas": formulas
+    }
+
+    out_path.parent.mkdir(parents=True, exist_ok=True)
+    out_path.write_text(yaml.safe_dump(normalized, sort_keys=False, allow_unicode=True), encoding="utf-8")
+    
+    print(f"Successfully normalized registry: {out_path}")
+    return 0
+
+if __name__ == "__main__":
+    import sys
+    sys.exit(main())