Add shared empty states, customer product filters, and SSO handoff across dashboards.

Standardize list empty UI, searchable country fields, customer-products filter row, password/login polish, and one-time business dashboard handoff from the customer app.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/business/src/pages/WebsiteContactPage.tsx

@@ -1,7 +1,8 @@
 import { useEffect, useMemo, useState } from 'react'
-import { RotateCcw, Search } from 'lucide-react'
+import { Mail, RotateCcw, Search } from 'lucide-react'
 import { useLocale } from '@meshkee/dashboard-ui'
 import { Breadcrumbs } from '../components/Breadcrumbs'
+import { EmptyTableRow } from '../components/EmptyState'
 import { PageTitle } from '../components/PageTitle'
 import { ContactSubmissionDetailModal } from '../components/ContactSubmissionDetailModal'
 import { Pagination } from '../components/Pagination'
@@ -203,11 +204,11 @@ export function WebsiteContactPage() {
                 )}
 
                 {!loading && data?.items.length === 0 && (
-                  <tr>
-                    <td className={styles.td} colSpan={COLUMN_COUNT}>
-                      {t('website.contact.empty')}
-                    </td>
-                  </tr>
+                  <EmptyTableRow
+                    colSpan={COLUMN_COUNT}
+                    icon={Mail}
+                    message={t('website.contact.empty')}
+                  />
                 )}
 
                 {!loading &&