feat: enable company-wide order viewing and editing

shop/app/my-orders/page.tsx

@@ -26,11 +26,28 @@ export default async function MyOrdersPage() {
   const { data: { user } } = await supabase.auth.getUser()
   if (!user) redirect('/auth/login')
 
-  const { data: orders, error } = await supabase
-    .from('orders')
-    .select('*')
-    .eq('user_id', user.id)
-    .order('created_at', { ascending: false })
+  // Get user's company_id and fetch all company orders
+  const { data: dbUser } = await supabase
+    .from('users')
+    .select('company_id')
+    .eq('id', user.id)
+    .single()
+
+  let query = supabase.from('orders').select('*')
+
+  if (dbUser?.company_id) {
+    const { data: companyUsers } = await supabase
+      .from('users')
+      .select('id')
+      .eq('company_id', dbUser.company_id)
+      
+    const userIds = (companyUsers ?? []).map(u => u.id)
+    query = query.in('user_id', userIds)
+  } else {
+    query = query.eq('user_id', user.id)
+  }
+
+  const { data: orders, error } = await query.order('created_at', { ascending: false })
 
   return (
     <div className="min-h-screen bg-[#020617] text-white px-4 py-12">