fix: treat paired missing packet metrics honestly

tools/validate_report_packet_sync_v1.py

@@ -44,6 +44,8 @@ def _as_number(value: str | None) -> float | None:
 
 def _compare_numeric(errors: list[str], label: str, packet_value: float | int | None, report_value: str | None, tolerance: float = 0.01) -> None:
     report_number = _as_number(report_value)
+    if packet_value is None and (report_value is None or report_value.strip().lower() in {"n/a", "null", "data_missing"}):
+        return
     if packet_value is None or report_number is None:
         errors.append(f"{label} missing comparison value")
         return
@@ -74,12 +76,14 @@ def main() -> int:
     pred_section = _find_section(report, "prediction_evaluation_improvement_report")
 
     _compare_numeric(errors, "PASS_100 score_0_100", pass_100.get("score_0_100"), _extract_table_value(pass_100_section, "score_0_100"))
-    if str(pass_100.get("gate") or "") != str(_extract_table_value(pass_100_section, "게이트")):
-        errors.append(f"PASS_100 gate mismatch: packet={pass_100.get('gate')} report={_extract_table_value(pass_100_section, '게이트')}")
+    pass_gate_report = _extract_table_value(pass_100_section, "게이트")
+    if not (pass_100.get("gate") is None and str(pass_gate_report or "").lower() in {"n/a", "null", "data_missing"}) and str(pass_100.get("gate") or "") != str(pass_gate_report):
+        errors.append(f"PASS_100 gate mismatch: packet={pass_100.get('gate')} report={pass_gate_report}")
 
     _compare_numeric(errors, "execution_readiness min_axis_score", exec_readiness.get("min_axis_score"), _extract_table_value(exec_section, "min_axis_score"))
-    if str(exec_readiness.get("gate") or "") != str(_extract_table_value(exec_section, "게이트")):
-        errors.append(f"execution_readiness gate mismatch: packet={exec_readiness.get('gate')} report={_extract_table_value(exec_section, '게이트')}")
+    exec_gate_report = _extract_table_value(exec_section, "게이트")
+    if not (exec_readiness.get("gate") is None and str(exec_gate_report or "").lower() in {"n/a", "null", "data_missing"}) and str(exec_readiness.get("gate") or "") != str(exec_gate_report):
+        errors.append(f"execution_readiness gate mismatch: packet={exec_readiness.get('gate')} report={exec_gate_report}")
 
     _compare_numeric(errors, "prediction match_rate_pct", prediction.get("match_rate_pct"), _extract_table_value(pred_section, "일치율"))