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_placement_check.py

@@ -48,7 +48,7 @@ def test_simple_project_without_pcb_has_no_ps_plc():
 
 def test_simple_project_eval_has_no_placement_keys():
     scores = eval_simple_project(SIMPLE)
-    assert scores.finding_count == 10
+    assert scores.finding_count == 8
     assert scores.precision == 1.0
     assert scores.recall == 1.0
     assert not any(k.startswith("PE-PLC-") for k in scores.extra_keys)