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/unit/security-permission-checks.test.ts

@@ -18,7 +18,7 @@ import { deepMerge } from '@/lib/api/helpers';
 
 // ─────────────────────────────────────────────────────────────────────────────
 
-describe('deepMerge — basic override behaviour', () => {
+describe('deepMerge - basic override behaviour', () => {
   it('override replaces a single base value', () => {
     const base = { clients: { view: true, create: true, delete: false } };
     const override = { clients: { delete: true } };
@@ -52,7 +52,7 @@ describe('deepMerge — basic override behaviour', () => {
   });
 });
 
-describe('deepMerge — nested structure preservation', () => {
+describe('deepMerge - nested structure preservation', () => {
   it('deep merges two levels of nesting without data loss', () => {
     const base = { admin: { manage_users: false, manage_settings: true } };
     const override = { admin: { manage_users: true } };
@@ -65,7 +65,10 @@ describe('deepMerge — nested structure preservation', () => {
     const base = { reports: { export: { csv: true, pdf: false } } };
     const override = { reports: { export: { pdf: true } } };
     const result = deepMerge(base, override);
-    const exportPerms = (result.reports as Record<string, unknown>).export as Record<string, boolean>;
+    const exportPerms = (result.reports as Record<string, unknown>).export as Record<
+      string,
+      boolean
+    >;
     expect(exportPerms.pdf).toBe(true);
     expect(exportPerms.csv).toBe(true);
   });
@@ -89,7 +92,7 @@ describe('deepMerge — nested structure preservation', () => {
   });
 });
 
-describe('deepMerge — immutability', () => {
+describe('deepMerge - immutability', () => {
   it('does not mutate the target object', () => {
     const base = { clients: { view: true, delete: false } };
     const override = { clients: { delete: true } };
@@ -106,7 +109,7 @@ describe('deepMerge — immutability', () => {
   });
 });
 
-describe('deepMerge — edge cases', () => {
+describe('deepMerge - edge cases', () => {
   it('empty override returns a copy of the base', () => {
     const base = { clients: { view: true } };
     const result = deepMerge(base, {});
@@ -126,7 +129,7 @@ describe('deepMerge — edge cases', () => {
 
   it('scalar override value wins over nested base value (array not merged)', () => {
     // When source has a non-object value for a key that base has as an object,
-    // the source scalar replaces the base object — this is the defined behaviour
+    // the source scalar replaces the base object - this is the defined behaviour
     const base = { meta: { x: 1 } };
     const override = { meta: 'string-value' };
     const result = deepMerge(base, override as unknown as Record<string, unknown>);