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/lib/error-codes.ts

@@ -18,7 +18,7 @@
  * add a new one. UI / docs / external integrations may pin to a code.
  *
  * The plain-text messages are written for the rep on the phone with
- * the customer — no "constraint violation", no "FK", no internal
+ * the customer - no "constraint violation", no "FK", no internal
  * service names. The error code is the only technical artifact the
  * user sees, alongside the request id (`X-Request-Id`).
  */
@@ -32,7 +32,7 @@ export interface ErrorCodeEntry {
 }
 
 /**
- * The full catalog. Adding a new code is a one-line entry — services
+ * The full catalog. Adding a new code is a one-line entry - services
  * pass the key to `new CodedError('FOO_BAR')` and the rest is automatic.
  */
 export const ERROR_CODES = {
@@ -130,7 +130,7 @@ export const ERROR_CODES = {
   },
   BERTHS_VERSION_ALREADY_CURRENT: {
     status: 409,
-    userMessage: "That PDF version is already the active one — there's nothing to roll back to.",
+    userMessage: "That PDF version is already the active one - there's nothing to roll back to.",
   },
 
   // ─── Recommender ────────────────────────────────────────────────────
@@ -225,7 +225,7 @@ export const ERROR_CODES = {
     status: 502,
     userMessage:
       'The signing service rejected our request. An admin will need to refresh the API key.',
-    hint: 'Documenso 401/403 — API key likely revoked or rotated.',
+    hint: 'Documenso 401/403 - API key likely revoked or rotated.',
   },
   DOCUMENSO_TIMEOUT: {
     status: 504,
@@ -234,7 +234,7 @@ export const ERROR_CODES = {
   DOCUMENSO_V1_NOT_SUPPORTED: {
     status: 400,
     userMessage:
-      'This action requires Documenso 2.x — the connected instance is on the legacy v1 API. Ask an admin to upgrade Documenso, then retry.',
+      'This action requires Documenso 2.x - the connected instance is on the legacy v1 API. Ask an admin to upgrade Documenso, then retry.',
     hint: 'updateEnvelope and other v2-native endpoints require the envelope API introduced in Documenso 2.0.',
   },
   OCR_UPSTREAM_ERROR: {
@@ -260,13 +260,13 @@ export const ERROR_CODES = {
   // ─── Internal post-insert guards ────────────────────────────────────
   // Surfaced as a generic "something went wrong" toast because the cause
   // is always a programmer / DB-state issue (returning row absent after a
-  // successful insert, etc.) — the rep can't action it but support can,
+  // successful insert, etc.) - the rep can't action it but support can,
   // via the request-id lookup. Use only with `internalMessage`.
   INSERT_RETURNING_EMPTY: {
     status: 500,
     userMessage:
       'Something went wrong on our end. Please try again, and quote the error ID below if it keeps happening.',
-    hint: 'A db.insert(...).returning() came back empty — DB constraint or transaction-rollback bug.',
+    hint: 'A db.insert(...).returning() came back empty - DB constraint or transaction-rollback bug.',
   },
 } as const satisfies Record<string, ErrorCodeEntry>;