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/worker.ts

@@ -9,7 +9,7 @@
 import { logger } from '@/lib/logger';
 import { registerRecurringJobs } from '@/lib/queue/scheduler';
 
-// Import all workers — the act of importing starts them
+// Import all workers - the act of importing starts them
 import { emailWorker } from '@/lib/queue/workers/email';
 import { documentsWorker } from '@/lib/queue/workers/documents';
 import { notificationsWorker } from '@/lib/queue/workers/notifications';