Remove Portfolio line from receipts

Remove portfolio ID display from both:
- Email receipt template (receipt.hbs)
- Digital receipt page (CheckoutSuccess.tsx)

Portfolio information is internal and not needed in customer-facing receipts.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

server/templates/receipt.hbs

@@ -373,12 +373,6 @@
         <div class="icon" style="font-size: 64px; opacity: 0.6;">🌱</div>
       </div>
 
-      <!-- Portfolio Info -->
-      <div class="detail-row">
-        <span class="detail-label" style="color: #475569 !important;">Portfolio</span>
-        <span class="detail-value" style="color: #0f172a !important;">#{{portfolioId}}</span>
-      </div>
-
       <!-- Pricing Breakdown -->
       <div class="pricing-box" style="background-color: #f8fafc !important;">
         <div class="pricing-row">

src/pages/CheckoutSuccess.tsx

@@ -348,14 +348,6 @@ export default function CheckoutSuccess({
                   </div>
                 </div>
 
-                {/* Portfolio */}
-                <div className="flex justify-between items-center py-4 border-b border-slate-100">
-                  <span className="text-slate-600 font-medium">Portfolio</span>
-                  <span className="text-slate-800 font-semibold">
-                    #{order.portfolioId}
-                  </span>
-                </div>
-
                 {/* Pricing Breakdown */}
                 <div className="bg-slate-50 rounded-lg p-5 my-4 space-y-3">
                   <div className="flex justify-between items-center">