Add POS Pro subscription billing and free-tier limits.

Wallet-backed Pro unlocks unlimited products, restaurant mode, catalog imports, and ecosystem sync features.

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

resources/views/partials/sidebar.blade.php

@@ -45,5 +45,18 @@
             </svg>
             <span class="flex-1 truncate">Settings</span>
         </a>
+
+        @php $proActive = request()->routeIs('pos.pro.*'); @endphp
+        @if(!empty($isPro))
+            <a href="{{ route('pos.pro.index') }}" class="group mt-0.5 flex items-center gap-3 rounded-lg px-3 py-2 text-[13px] transition {{ $proActive ? 'bg-indigo-50 text-indigo-700 font-semibold' : 'text-slate-600 hover:bg-slate-50 hover:text-slate-900' }}">
+                <svg class="h-[18px] w-[18px] shrink-0 text-amber-500" viewBox="0 0 24 24" fill="currentColor"><path d="M12 2.25c.3 0 .58.18.7.46l2.36 5.5 5.96.5a.75.75 0 0 1 .43 1.31l-4.53 3.9 1.36 5.83a.75.75 0 0 1-1.12.81L12 17.77l-5.16 3a.75.75 0 0 1-1.12-.81l1.36-5.83-4.53-3.9a.75.75 0 0 1 .43-1.31l5.96-.5 2.36-5.5c.12-.28.4-.46.7-.46Z"/></svg>
+                <span>POS Pro</span>
+            </a>
+        @else
+            <a href="{{ route('pos.pro.index') }}" class="group mt-0.5 flex items-center gap-3 rounded-lg bg-gradient-to-r from-indigo-600 to-emerald-500 px-3 py-2 text-[13px] font-semibold text-white shadow-sm transition hover:opacity-95">
+                <svg class="h-[18px] w-[18px] shrink-0" viewBox="0 0 24 24" fill="currentColor"><path d="M12 2.25c.3 0 .58.18.7.46l2.36 5.5 5.96.5a.75.75 0 0 1 .43 1.31l-4.53 3.9 1.36 5.83a.75.75 0 0 1-1.12.81L12 17.77l-5.16 3a.75.75 0 0 1-1.12-.81l1.36-5.83-4.53-3.9a.75.75 0 0 1 .43-1.31l5.96-.5 2.36-5.5c.12-.28.4-.46.7-.46Z"/></svg>
+                <span>Upgrade to Pro</span>
+            </a>
+        @endif
     </div>
 </div>