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/ui/status-pill.tsx

@@ -4,7 +4,7 @@ import * as React from 'react';
 import { cn } from '@/lib/utils';
 
 /**
- * Status pill — a single visual primitive for "this thing is in state X" across
+ * Status pill - a single visual primitive for "this thing is in state X" across
  * documents, signers, reservations, interests. Replaces ad-hoc Badge variants
  * sprinkled through detail pages so the colour mapping stays consistent.
  */
@@ -41,7 +41,7 @@ export type StatusPillStatus = NonNullable<VariantProps<typeof statusPillVariant
 
 interface StatusPillProps
   extends React.HTMLAttributes<HTMLSpanElement>, VariantProps<typeof statusPillVariants> {
-  /** Optional leading dot — useful for "in-progress" style indicators. */
+  /** Optional leading dot - useful for "in-progress" style indicators. */
   withDot?: boolean;
 }