Add super-admin invoices: settings templates and per-business issue flow.

Platform invoice templates live under Settings; each business can list and issue invoices with optional name and a meshkee.com public link.

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

apps/super-admin/src/pages/BusinessesPage.tsx

@@ -2,6 +2,7 @@ import { useEffect, useMemo, useState } from 'react'
 import { useNavigate } from 'react-router-dom'
 import {
   AlertTriangle,
+  FileText,
   Globe,
   Lock,
   Pencil,
@@ -653,6 +654,15 @@ export function BusinessesPage() {
                               onChange={(isActive) => void handleToggleActive(b, isActive)}
                             />
                           </span>
+                          <button
+                            type="button"
+                            className={styles.controlBtn}
+                            onClick={() => navigate(`/businesses/${b.id}/invoices`)}
+                            title="Invoices"
+                            aria-label="View invoices"
+                          >
+                            <FileText size={16} />
+                          </button>
                           <button
                             type="button"
                             className={styles.controlBtn}