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/client-relationship-port-isolation.test.ts

@@ -1,5 +1,5 @@
 /**
- * clients.service.createRelationship — tenant-FK validation tests.
+ * clients.service.createRelationship - tenant-FK validation tests.
  *
  * Covers the fix that requires both clientAId (the URL id) and clientBId
  * (the body id) to belong to the caller's port. The list endpoint joins
@@ -8,7 +8,7 @@
  */
 import { describe, it, expect, beforeAll } from 'vitest';
 
-describe('clients.service — createRelationship port isolation', () => {
+describe('clients.service - createRelationship port isolation', () => {
   let createRelationship: typeof import('@/lib/services/clients.service').createRelationship;
 
   let makePort: typeof import('../helpers/factories').makePort;