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/shared/realtime-toasts.tsx

@@ -11,7 +11,7 @@ import { stageLabel } from '@/lib/constants';
  * toasts. Mounted once inside SocketProvider so reps see "EOI signed",
  * "Deposit recorded", "Stage advanced" without having to refresh.
  *
- * Render-only — no children. Intentionally narrow in scope: only toast on
+ * Render-only - no children. Intentionally narrow in scope: only toast on
  * events that are noteworthy *to a user staring at any page*. Per-page
  * cache invalidations stay in `useRealtimeInvalidation`.
  */
@@ -36,7 +36,7 @@ export function RealtimeToasts() {
     }
 
     function onDocumentCompleted(payload: { type?: string }) {
-      // Kick a generic "fully signed" — the type-specific message is
+      // Kick a generic "fully signed" - the type-specific message is
       // friendlier when we can identify it as an EOI.
       if (payload?.type === 'eoi') {
         toast.success('EOI fully signed', {
@@ -64,7 +64,7 @@ export function RealtimeToasts() {
       const isWon = payload.outcome === 'won';
       const label = payload.outcome.replace(/_/g, ' ');
       const fn = isWon ? toast.success : toast.message;
-      fn(`Interest closed — ${label}`);
+      fn(`Interest closed - ${label}`);
     }
 
     socket.on('interest:stageChanged', onStageChanged);