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/custom-field-validation.test.ts

@@ -1,5 +1,5 @@
 /**
- * Tests for validateCustomFieldValue — the private validation helper in
+ * Tests for validateCustomFieldValue - the private validation helper in
  * custom-fields.service.ts. Since it is not exported we test it via the
  * public setValues function, using vi.mock to avoid database calls.
  * All assertions focus on what error message (if any) is thrown.
@@ -111,7 +111,7 @@ async function validate(
 
 // ─── text ─────────────────────────────────────────────────────────────────────
 
-describe('custom field validation — text', () => {
+describe('custom field validation - text', () => {
   it('accepts a string value', async () => {
     await expect(validate('text', 'hello')).resolves.toBeDefined();
   });
@@ -131,7 +131,7 @@ describe('custom field validation — text', () => {
 
 // ─── number ──────────────────────────────────────────────────────────────────
 
-describe('custom field validation — number', () => {
+describe('custom field validation - number', () => {
   it('accepts a valid number', async () => {
     await expect(validate('number', 42)).resolves.toBeDefined();
   });
@@ -151,7 +151,7 @@ describe('custom field validation — number', () => {
 
 // ─── date ─────────────────────────────────────────────────────────────────────
 
-describe('custom field validation — date', () => {
+describe('custom field validation - date', () => {
   it('accepts a valid ISO date string', async () => {
     await expect(validate('date', '2026-06-15')).resolves.toBeDefined();
   });
@@ -171,7 +171,7 @@ describe('custom field validation — date', () => {
 
 // ─── boolean ─────────────────────────────────────────────────────────────────
 
-describe('custom field validation — boolean', () => {
+describe('custom field validation - boolean', () => {
   it('accepts true', async () => {
     await expect(validate('boolean', true)).resolves.toBeDefined();
   });
@@ -191,7 +191,7 @@ describe('custom field validation — boolean', () => {
 
 // ─── select ──────────────────────────────────────────────────────────────────
 
-describe('custom field validation — select', () => {
+describe('custom field validation - select', () => {
   const options = ['Small', 'Medium', 'Large'];
 
   it('accepts a valid option', async () => {
@@ -220,7 +220,7 @@ describe('custom field validation — select', () => {
 
 // ─── required / non-required null handling ───────────────────────────────────
 
-describe('custom field validation — required vs optional null', () => {
+describe('custom field validation - required vs optional null', () => {
   it('required field: null value → throws ValidationError', async () => {
     await expect(validate('text', null, { isRequired: true })).rejects.toBeInstanceOf(
       ValidationError,
@@ -234,7 +234,7 @@ describe('custom field validation — required vs optional null', () => {
   });
 
   it('non-required field: null value → succeeds (no error)', async () => {
-    // null for non-required means "clear the value" — setValues will upsert null
+    // null for non-required means "clear the value" - setValues will upsert null
     await expect(validate('text', null, { isRequired: false })).resolves.toBeDefined();
   });
 });