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/alert-rules.ts

@@ -139,7 +139,7 @@ async function documentSignerOverdue(portId: string): Promise<AlertCandidate[]>
     ruleId: 'document.signer_overdue',
     severity: 'warning',
     title: `Signer overdue: ${r.signerName}`,
-    body: `${r.docType.toUpperCase()} "${r.title}" — pending >14 days.`,
+    body: `${r.docType.toUpperCase()} "${r.title}" - pending >14 days.`,
     link: `/[port]/documents/${r.docId}`,
     entityType: 'document',
     entityId: r.docId,
@@ -202,7 +202,7 @@ async function expenseDuplicate(portId: string): Promise<AlertCandidate[]> {
     ruleId: 'expense.duplicate',
     severity: 'info',
     title: `Possible duplicate expense`,
-    body: `${r.vendor ?? 'Unknown vendor'} — ${r.amount}.`,
+    body: `${r.vendor ?? 'Unknown vendor'} - ${r.amount}.`,
     link: `/[port]/expenses/${r.id}`,
     entityType: 'expense',
     entityId: r.id,
@@ -236,7 +236,7 @@ async function expenseUnscanned(portId: string): Promise<AlertCandidate[]> {
     ruleId: 'expense.unscanned',
     severity: 'info',
     title: `Receipt not scanned`,
-    body: `${r.vendor ?? 'Unknown vendor'} — uploaded over an hour ago.`,
+    body: `${r.vendor ?? 'Unknown vendor'} - uploaded over an hour ago.`,
     link: `/[port]/expenses/${r.id}`,
     entityType: 'expense',
     entityId: r.id,
@@ -271,7 +271,7 @@ async function interestHighValueSilent(portId: string): Promise<AlertCandidate[]
     ruleId: 'interest.high_value_silent',
     severity: 'critical',
     title: `Hot lead silent: ${r.clientName}`,
-    body: `No contact for 7+ days — high-value at risk.`,
+    body: `No contact for 7+ days - high-value at risk.`,
     link: `/[port]/interests/${r.id}`,
     entityType: 'interest',
     entityId: r.id,
@@ -303,7 +303,7 @@ async function eoiUnsignedLong(portId: string): Promise<AlertCandidate[]> {
     ruleId: 'eoi.unsigned_long',
     severity: 'warning',
     title: `EOI unsigned >21 days`,
-    body: `"${r.title}" — sent over 3 weeks ago.`,
+    body: `"${r.title}" - sent over 3 weeks ago.`,
     link: `/[port]/documents/${r.id}`,
     entityType: 'document',
     entityId: r.id,