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_artifact_sync_v1.py

@@ -0,0 +1,153 @@
+"""validate_artifact_sync_v1.py — P4-T04: Artifact Sync Validation
+
+Checks that engine_harness_gate_result.json (runtime log) and
+formula_runtime_registry_v1.json (artifact file) report consistent gates.
+Blocks release if log says PASS/OK but artifact file says FAIL.
+
+formula_id: VALIDATE_ARTIFACT_SYNC_V1
+"""
+from __future__ import annotations
+
+import argparse
+import json
+import sys
+from pathlib import Path
+
+import yaml
+
+ROOT = Path(__file__).resolve().parents[1]
+
+DEFAULT_ENGINE_RESULT = ROOT / "Temp" / "engine_harness_gate_result.json"
+DEFAULT_REGISTRY     = ROOT / "Temp" / "formula_runtime_registry_v1.json"
+DEFAULT_MANIFEST     = ROOT / "runtime" / "active_artifact_manifest.yaml"
+
+
+def _load_json(path: Path) -> dict:
+    if not path.exists():
+        return {"_missing": True, "_path": str(path)}
+    try:
+        return json.loads(path.read_text(encoding="utf-8"))
+    except Exception as e:
+        return {"_error": str(e), "_path": str(path)}
+
+
+def _load_yaml(path: Path) -> dict:
+    if not path.exists():
+        return {"_missing": True, "_path": str(path)}
+    try:
+        obj = yaml.safe_load(path.read_text(encoding="utf-8"))
+        return obj if isinstance(obj, dict) else {}
+    except Exception as e:
+        return {"_error": str(e), "_path": str(path)}
+
+
+def _check_engine_result(engine: dict) -> tuple[bool, str]:
+    if engine.get("_missing"):
+        return False, f"engine_harness_gate_result.json missing: {engine.get('_path')}"
+    status = str(engine.get("status") or "").upper()
+    # gate field might not exist; status=OK is the success signal
+    if status not in ("OK", "PASS"):
+        return False, f"engine_harness_gate_result status={status!r} (expected OK/PASS)"
+    return True, "OK"
+
+
+def _check_registry(registry: dict) -> tuple[bool, str]:
+    if registry.get("_missing"):
+        return False, f"formula_runtime_registry_v1.json missing: {registry.get('_path')}"
+    gate = str(registry.get("gate") or "").upper()
+    unmapped = registry.get("unmapped_formula_count", -1)
+    coverage = registry.get("runtime_adjusted_coverage_pct", 0)
+    if gate != "PASS":
+        return False, (
+            f"formula_runtime_registry gate={gate!r}, "
+            f"unmapped={unmapped}, coverage={coverage}%"
+        )
+    return True, f"gate=PASS coverage={coverage}%"
+
+
+def _check_manifest(manifest: dict) -> tuple[bool, str]:
+    if manifest.get("_missing"):
+        return False, f"active_artifact_manifest.yaml missing: {manifest.get('_path')}"
+    artifacts = manifest.get("artifacts") or []
+    if not artifacts:
+        # Some manifests use different structure
+        artifacts = list(manifest.values()) if isinstance(manifest, dict) else []
+
+    collision_count = 0
+    stale_count = 0
+    for art in artifacts:
+        if not isinstance(art, dict):
+            continue
+        if art.get("stale"):
+            stale_count += 1
+        active_aliases = art.get("active_aliases") or []
+        if len(active_aliases) > 1:
+            collision_count += 1
+
+    if collision_count > 0:
+        return False, f"authority_collision_count={collision_count}"
+    if stale_count > 0:
+        return False, f"stale_artifact_count={stale_count}"
+    return True, "OK"
+
+
+def _check_sync_consistency(engine_ok: bool, registry_ok: bool) -> tuple[bool, str]:
+    """Log PASS but artifact FAIL → ARTIFACT_SYNC_FAIL"""
+    if engine_ok and not registry_ok:
+        return False, "ARTIFACT_SYNC_MISMATCH: engine_log=OK but registry=FAIL"
+    return True, "consistent"
+
+
+def main() -> int:
+    ap = argparse.ArgumentParser(description="P4-T04 artifact sync validator")
+    ap.add_argument("--engine-result", default=str(DEFAULT_ENGINE_RESULT))
+    ap.add_argument("--manifest",      default=str(DEFAULT_MANIFEST))
+    ap.add_argument("--registry",      default=str(DEFAULT_REGISTRY))
+    args = ap.parse_args()
+
+    engine   = _load_json(Path(args.engine_result))
+    registry = _load_json(Path(args.registry))
+    manifest = _load_yaml(Path(args.manifest))
+
+    engine_ok,   engine_msg   = _check_engine_result(engine)
+    registry_ok, registry_msg = _check_registry(registry)
+    manifest_ok, manifest_msg = _check_manifest(manifest)
+    sync_ok,     sync_msg     = _check_sync_consistency(engine_ok, registry_ok)
+
+    mismatches = []
+    if not engine_ok:
+        mismatches.append(f"engine: {engine_msg}")
+    if not registry_ok:
+        mismatches.append(f"registry: {registry_msg}")
+    if not manifest_ok:
+        mismatches.append(f"manifest: {manifest_msg}")
+    if not sync_ok:
+        mismatches.append(f"sync: {sync_msg}")
+
+    gate = "PASS" if not mismatches else "FAIL"
+
+    result = {
+        "formula_id": "VALIDATE_ARTIFACT_SYNC_V1",
+        "artifact_sync_mismatch_count": len(mismatches),
+        "checks": {
+            "engine_result": {"ok": engine_ok, "detail": engine_msg},
+            "formula_registry": {"ok": registry_ok, "detail": registry_msg},
+            "active_manifest": {"ok": manifest_ok, "detail": manifest_msg},
+            "sync_consistency": {"ok": sync_ok, "detail": sync_msg},
+        },
+        "mismatches": mismatches,
+        "gate": gate,
+    }
+
+    print(json.dumps(result, ensure_ascii=False, indent=2))
+
+    if gate == "PASS":
+        print("VALIDATE_ARTIFACT_SYNC_V1_OK")
+        return 0
+    else:
+        print("VALIDATE_ARTIFACT_SYNC_V1_FAIL")
+        return 1
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())