Gate SI layout_rules to the quoted bus, not EN RC onto USB.

PE-SI-009 no longer treats ESP32 CHIP_PU/EN RC as a USB series R.
USB without a library Z number stays PE-SI-010 measurement-only.
Pintable skill 1.13.0 requires net_class on SI kinds (usb2/usb3/MDI/RGMII/DDR3).

tests/test_pcb_plan_closeout.py

@@ -48,10 +48,35 @@ def test_si_refresh_when_old_extract_has_only_decoupling():
     )
     assert not needs_layout_rules_refresh(
         {
-            "model_version": "1.9.0",
-            "layout_rules": [{"kind": "decoupling_proximity", "max_distance_mm": None}],
+            "model_version": "1.12.0",
+            "layout_rules": [{"kind": "series_resistor", "value_ohms": 10000}],
         },
-        min_scan_version="1.10.0",
+        min_scan_version="1.12.0",
+    )
+    assert needs_layout_rules_refresh(
+        {
+            "model_version": "1.12.0",
+            "layout_rules": [{
+                "kind": "series_resistor",
+                "value_ohms": 10000,
+                "note": "EN RC 10 kΩ / 1 µF",
+            }],
+        },
+        min_scan_version="1.13.0",
+    )
+    assert not needs_layout_rules_refresh(
+        {
+            "model_version": "1.12.0",
+            "layout_rules": [{"kind": "impedance", "net_class": "usb2", "zdiff_ohm": 90}],
+        },
+        min_scan_version="1.13.0",
+    )
+    assert not needs_layout_rules_refresh(
+        {
+            "model_version": "1.12.0",
+            "layout_rules": [],
+        },
+        min_scan_version="1.13.0",
     )