chore(autonomous-session): consolidate uncommitted work from prior session

Bundles the prior autonomous-session output that was sitting unstaged:

- Em-dash sweep across src/ + tests/ (en-dash/em-dash to hyphen, ~2280 instances)
- country-flag-icons rollout (CountryFlag component, replaces emoji glyphs that
  never rendered on Windows; lazy-loads the 3x2 SVG index as a single chunk
  after the per-subpath dynamic-import approach silently failed in webpack)
- Admin IA Phase 1+2: 7-domain regroup, 41 to 38 pages, /admin/berths index,
  redirects (ocr to ai, reports to dashboard, invitations to users),
  docs/admin-ia-proposal.md
- Per-template email tester (registry + endpoint + UI on Email admin page)
- Cancel-document mode picker (delete-from-Documenso vs keep-for-audit)
- Dashboard PDF report: 25 widgets, SVG charts, date-range picker, 11 resolvers
- Customize-widgets per-region sortables at xl+ (charts/rails/feed); single
  flat sortable below xl when the layout stacks; per-viewport saved orders
- Audit doc updates capturing each shipped item
- Lint fixes: react-compiler immutability in DonutChart (reduce instead of
  let-reassign), set-state-in-effect disables in CountryFlag and
  UploadForSigning preview-bytes effect, unused 'confirm' destructures in
  interest contract + reservation tabs, unescaped apostrophe in test-template
  card copy

tests/integration/schema-constraints.test.ts

@@ -26,7 +26,7 @@ beforeAll(async () => {
     dbAvailable = true;
   } catch (err) {
     console.warn(
-      '[schema-constraints] DATABASE_URL not reachable — skipping integration tests',
+      '[schema-constraints] DATABASE_URL not reachable - skipping integration tests',
       err,
     );
   }
@@ -61,7 +61,7 @@ describe('schema constraints', () => {
           ownerType: 'client',
           ownerId: clientB.id,
           startDate: new Date(),
-          endDate: null, // another open row — should violate partial unique
+          endDate: null, // another open row - should violate partial unique
           createdBy: 'test',
         }),
       ).rejects.toMatchObject({
@@ -123,7 +123,7 @@ describe('schema constraints', () => {
       });
       const berth = await makeBerth({ portId: port.id });
 
-      // Two ended reservations on same berth — both should succeed
+      // Two ended reservations on same berth - both should succeed
       // (partial index only constrains status='active').
       await expect(
         db.insert(berthReservations).values([