Add a Statistics page for storefront visits and instruction 1:1/3:2 crops.

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

apps/business/src/components/PageContent.module.css

@@ -205,7 +205,8 @@
   .gridHome,
   .gridFour,
   .gridCols4,
-  .gridCols5 {
+  .gridCols5,
+  .grid12 {
     grid-template-columns: 1fr;
     gap: 16px;
   }

apps/business/src/components/Sidebar.tsx

@@ -2,6 +2,7 @@ import { useEffect, useMemo, useState } from 'react'
 import { NavLink, useLocation, useNavigate } from 'react-router-dom'
 import {
   Home,
+  BarChart3,
   ShoppingBag,
   Store,
   Users,
@@ -110,6 +111,13 @@ export function Sidebar({ open = false }: SidebarProps) {
   const navItems = useMemo<NavItem[]>(() => {
     const items: NavItem[] = [
       { type: 'link', id: 'home', icon: Home, labelKey: 'nav.home', to: '/' },
+      {
+        type: 'link',
+        id: 'statistics',
+        icon: BarChart3,
+        labelKey: 'nav.statistics',
+        to: '/statistics',
+      },
       {
         type: 'link',
         id: 'business-profile',