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/berths/berth-tabs.tsx

@@ -109,7 +109,7 @@ function OverviewTab({ berth }: { berth: BerthData }) {
 
   return (
     <div className="space-y-6">
-      {/* Sales pulse — top-of-page so reps doing berth-level triage can see
+      {/* Sales pulse - top-of-page so reps doing berth-level triage can see
           who's interested + how warm without clicking into the Interests tab. */}
       <BerthInterestPulse berthId={berth.id} />