Share library/extracted for schematic and PCB review.

PCB AI skips a second PDF exam (pintable cache, pdf_path=None) and the report
gains a PCB exam section plus power-trace, thermal, via, Kelvin, and GND-stitch
checks grounded in board geometry and extracted specs.

backend/periscopex/pcb_checks.py

@@ -8,6 +8,13 @@ from collections import Counter
 from backend.periscopex.derating import build_derating_table
 from backend.periscopex.models import DesignGraph, Finding, LayoutGraph
 from backend.periscopex.pcb_net_match import check_pcb_net_match
+from backend.periscopex.pcb_power_thermal import (
+    check_pcb_gnd_stitch,
+    check_pcb_kelvin,
+    check_pcb_power_traces,
+    check_pcb_thermal_copper,
+    check_pcb_via_current,
+)
 from backend.periscopex.placement_check import check_placement
 from backend.periscopex.si_check import check_si
 
@@ -86,6 +93,10 @@ def merge_schema_pcb_reports(
         if st in summary:
             summary[st] = summary.get(st, 0) + 1
     out["summary"] = summary
+    schema_nr = list((schema or {}).get("not_reviewed") or [])
+    pcb_nr = list((pcb or {}).get("not_reviewed") or [])
+    if schema_nr or pcb_nr:
+        out["not_reviewed"] = schema_nr + pcb_nr
     return out
 
 
@@ -101,6 +112,11 @@ def run_pcb_checks(
         ("placement_check", lambda: check_placement(graph, constraints_map, layout)),
         ("si_check", lambda: check_si(graph, constraints_map, layout)),
         ("pcb_derating", lambda: check_pcb_derating(graph)),
+        ("pcb_power_traces", lambda: check_pcb_power_traces(graph, constraints_map, layout)),
+        ("pcb_via_current", lambda: check_pcb_via_current(graph, constraints_map, layout)),
+        ("pcb_thermal_copper", lambda: check_pcb_thermal_copper(graph, constraints_map, layout)),
+        ("pcb_kelvin", lambda: check_pcb_kelvin(graph, constraints_map)),
+        ("pcb_gnd_stitch", lambda: check_pcb_gnd_stitch(graph, layout)),
     ):
         try:
             out.extend(fn())