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

src/components/dashboard/widget-registry.tsx

@@ -1,5 +1,5 @@
 /**
- * Dashboard widget registry — the single source of truth for which
+ * Dashboard widget registry - the single source of truth for which
  * widgets exist, what they're called, where they live, and what they
  * default to. The DashboardShell loops over this; the settings UI also
  * loops over this. Adding a new widget = adding one entry here.
@@ -76,7 +76,7 @@ export type WidgetGroup = 'chart' | 'rail' | 'feed';
 export type WidgetIntegration = 'umami' | 'documenso';
 
 export interface DashboardWidget {
-  /** Stable persistence key. Don't rename — old preferences would break. */
+  /** Stable persistence key. Don't rename - old preferences would break. */
   id: string;
   label: string;
   description: string;
@@ -92,7 +92,7 @@ export interface DashboardWidget {
   /**
    * Some widgets self-gate (e.g. WebsiteGlanceTile renders null when
    * Umami isn't configured). When `true`, the settings UI still shows
-   * the toggle so admins can enable it once the integration is wired —
+   * the toggle so admins can enable it once the integration is wired -
    * but the widget itself decides whether to render content.
    */
   selfGates?: boolean;
@@ -106,7 +106,7 @@ export interface DashboardWidget {
 
 export const DASHBOARD_WIDGETS: readonly DashboardWidget[] = [
   // ── KPI tiles (rail) ────────────────────────────────────────────────
-  // Off by default — keep the existing dashboard layout unchanged for
+  // Off by default - keep the existing dashboard layout unchanged for
   // users on first paint after the upgrade; reps can flip them on from
   // the Customize menu.
   {
@@ -166,10 +166,10 @@ export const DASHBOARD_WIDGETS: readonly DashboardWidget[] = [
   {
     id: 'source_conversion',
     label: 'Source Conversion',
-    description: 'Win rate per lead source — which channels deliver buyers, not just leads.',
+    description: 'Win rate per lead source - which channels deliver buyers, not just leads.',
     render: () => <SourceConversionChart />,
     group: 'chart',
-    // Flipped on 2026-05-14 — investor-facing conversion-funnel-by-source
+    // Flipped on 2026-05-14 - investor-facing conversion-funnel-by-source
     // surface (PRE-DEPLOY-PLAN § 1.6.23). Reads inquiry → client linkage
     // (clients.source_inquiry_id) added in migration 0065.
     defaultVisible: true,
@@ -189,7 +189,7 @@ export const DASHBOARD_WIDGETS: readonly DashboardWidget[] = [
     description:
       'Per-country distribution of the active client book. Click a row to filter the clients list by country.',
     render: () => <ClientsByCountryWidget />,
-    // Same rail-tile idiom as BerthHeatWidget + HotDealsCard — compact
+    // Same rail-tile idiom as BerthHeatWidget + HotDealsCard - compact
     // ranked list with mini-bars. Variant (a) per the master-doc design;
     // the world-map variant lands alongside the recharts→ECharts pass.
     group: 'rail',