chore(style): codebase em-dash sweep + minor layout polish

Replaces every em-dash and en-dash with regular ASCII hyphens
across comments, JSX strings, and dev-facing logs. Mostly cosmetic
but stops the inconsistent mix that crept in over the last few
months (some files used em-dashes in comments, others didn't,
some used both).

Bundles two small dashboard-layout tweaks that touch a couple of
already-modified files:
- (dashboard)/layout.tsx main padding goes from p-6 to pt-3 px-6
  pb-6 so page content sits closer to the topbar.
- Sidebar now receives the ports list it needs for the footer
  port switcher.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/components/admin/webhooks/webhook-delivery-log.tsx

@@ -57,7 +57,7 @@ export function WebhookDeliveryLog({ webhookId }: Props) {
 
   useEffect(() => {
     void load(page);
-  // eslint-disable-next-line react-hooks/exhaustive-deps
+    // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [webhookId, page]);
 
   if (loading && deliveries.length === 0) {
@@ -87,13 +87,9 @@ export function WebhookDeliveryLog({ webhookId }: Props) {
             <TableRow key={d.id}>
               <TableCell className="font-mono text-xs">{d.eventType}</TableCell>
               <TableCell>
-                <Badge variant={STATUS_VARIANTS[d.status] ?? 'outline'}>
-                  {d.status}
-                </Badge>
-              </TableCell>
-              <TableCell className="text-sm">
-                {d.responseStatus ?? '—'}
+                <Badge variant={STATUS_VARIANTS[d.status] ?? 'outline'}>{d.status}</Badge>
               </TableCell>
+              <TableCell className="text-sm">{d.responseStatus ?? '-'}</TableCell>
               <TableCell className="text-sm">{d.attempt}</TableCell>
               <TableCell className="text-xs text-muted-foreground">
                 {d.deliveredAt