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/lib/services/interest-scoring.service.ts

@@ -46,7 +46,7 @@ function scoreStageSpeed(createdAt: Date, pipelineStage: string): number {
   const idx = PIPELINE_STAGES.indexOf(pipelineStage as (typeof PIPELINE_STAGES)[number]);
   const stageIndex = idx === -1 ? 0 : idx;
   if (stageIndex === 0) {
-    // Still at open — no progression
+    // Still at open - no progression
     return 0;
   }
 
@@ -131,7 +131,7 @@ export async function calculateInterestScore(
   // 3. Document completeness
   const documentCompleteness = scoreDocumentCompleteness(interest);
 
-  // 4. Engagement — notes, emails, reminders in last 30 days
+  // 4. Engagement - notes, emails, reminders in last 30 days
   const thirtyDaysAgo = new Date(Date.now() - 30 * 24 * 60 * 60 * 1000);
 
   const [notesResult, remindersResult, emailResult] = await Promise.all([