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/list-card.tsx

@@ -11,12 +11,12 @@ interface ListCardProps {
   href: string;
   /**
    * Optional Tailwind background class painted on a 3px vertical strip on the
-   * left edge — used to encode pipeline stage / status / category at a glance.
+   * left edge - used to encode pipeline stage / status / category at a glance.
    * Pass `undefined` for entities with no status to surface (clients, etc.).
    */
   accentClassName?: string;
   /**
-   * Top-right action slot — typically a `<DropdownMenu>` for edit/archive.
+   * Top-right action slot - typically a `<DropdownMenu>` for edit/archive.
    * Rendered absolutely-positioned outside the navigation Link so its clicks
    * don't trigger detail navigation.
    */
@@ -71,7 +71,7 @@ export function ListCard({
 interface ListCardAvatarProps {
   /** Two-letter initials (or one for single-word names). Caller derives. */
   initials?: string;
-  /** Domain icon (Lucide). Used when the entity isn't a person — yacht, berth, company. */
+  /** Domain icon (Lucide). Used when the entity isn't a person - yacht, berth, company. */
   icon?: ReactNode;
   className?: string;
 }