Tighten PCB findings: actions, stitch gating, real copper.

Fill action on every finding and show it in the report. Stitch/return only
on large HS/power nets. Parse stackup thickness, arcs, and vias from the
board. IC courtyard pad copper is not PE-PLC-004 RULE. Recommended RC/cap
stay REVIEW.

frontend/src/components/report/finding-card.tsx

@@ -58,8 +58,9 @@ export function FindingCard({
   const [open, setOpen] = useState(defaultOpen ?? false);
   const commentCount = comments?.length ?? 0;
   const hasCommentSupport = !!(projectId && collaborators && onCommentAdded && onCommentDeleted);
+  const actionText = (finding.action || finding.recommendation || "").trim();
   const expandable =
-    !!finding.recommendation ||
+    !!actionText ||
     !!finding.facts ||
     !!finding.requirement ||
     !!finding.inference ||
@@ -116,17 +117,17 @@ export function FindingCard({
             )}
             <span>{finding.finding}</span>
           </p>
-          {finding.why && (
+          {finding.why && !finding.facts && !finding.requirement && (
             <p className="text-sm text-muted-foreground leading-relaxed">{finding.why}</p>
           )}
 
           <div className="flex items-center gap-2 pt-1">
-            {finding.recommendation && (
+            {actionText && (
               <span className="inline-flex items-center h-7 px-2 text-xs text-muted-foreground">
                 <ChevronDown
                   className={cn("h-3.5 w-3.5 mr-1 transition-transform", open && "rotate-180")}
                 />
-                Recommendation
+                Action
               </span>
             )}
             {hasCommentSupport && finding.finding_id && (
@@ -249,9 +250,10 @@ export function FindingCard({
                   ) : null}
                 </dl>
               )}
-              {finding.recommendation && (
+              {actionText && (
                 <p className="text-sm text-muted-foreground mt-2 pl-1 border-l-2 border-muted leading-relaxed">
-                  {finding.recommendation}
+                  <span className="font-medium text-foreground">Action. </span>
+                  {actionText}
                 </p>
               )}
               {hasCommentSupport && finding.finding_id && (