Gate interface certifiers to connectors on this board (2.61.2).

USB-C/RJ45/PoE/DDR3 are the method, not a catalog. No connector means
no finding. Bare RJ45 is Ethernet only; PoE needs PoE evidence. HubAudio
has USB-C and PoE MagJack, not DDR. Skip-I unchanged.

tests/test_validation_concurrency.py

@@ -160,9 +160,9 @@ async def test_concurrency_bounded_by_knob_and_charging_isolated(workspace, monk
     assert review_n == len(IC_MPNS)  # all 5 reviewed
     if_ids = {
         f.get("rule_id") for f in report["findings"]
-        if (f.get("rule_id") or "").startswith(("PE-USBC", "PE-ETH", "PE-POE"))
+        if (f.get("rule_id") or "").startswith(("PE-USBC", "PE-ETH", "PE-POE", "PE-DDR"))
     }
-    assert "PE-USBC-001" in if_ids  # N/A certifier, not a 6th IC review
+    assert not if_ids  # five ICs, no USB-C/RJ45/DDR — do not invent those certifiers
 
 
 @pytest.mark.asyncio