Add Auctions & Make-an-Offer feature card + pricing include

- index.html: new feature card under "What's included" section,
  highlights eBay-style auctions with reserve, soft-close, and
  proxy bidding plus negotiation with auto-accept/decline
- pricing.html: "Auctions & make-an-offer" added to "Every shop
  includes" list

CLAUDE.md change in working tree is fox's prior style-rule edit;
left unstaged.

index.html

@@ -140,6 +140,12 @@ Open source & public domain — no moat, no castle, just infrastructure
             <span class="mps-card-desc">Sell variable-amount gift cards redeemable at checkout. Partial use across multiple purchases, optional recipient email, never expire. Accept any payment method including crypto.</span>
           </div>
 
+          <div class="mps-card">
+            <span class="mps-card-icon">&#128176;</span>
+            <span class="mps-card-title">Auctions &amp; Make-an-Offer</span>
+            <span class="mps-card-desc">Run eBay-style auctions with reserve, soft-close, and proxy bidding. Or accept offers and negotiate. Auto-accept high offers, auto-decline lowballs. All commission-free, paid through your existing checkout.</span>
+          </div>
+
           <div class="mps-card">
             <span class="mps-card-icon">&#128101;</span>
             <span class="mps-card-title">Multi-tenant &amp; Team</span>

pricing.html

@@ -139,6 +139,7 @@ Open source & public domain — no moat, no castle, just infrastructure
             <div class="calc-included-item"><span class="landing-check">&#x2714;</span> Zero commission fees</div>
             <div class="calc-included-item"><span class="landing-check">&#x2714;</span> Digital &amp; physical products</div>
             <div class="calc-included-item"><span class="landing-check">&#x2714;</span> Coupons, bundles &amp; gift cards</div>
+            <div class="calc-included-item"><span class="landing-check">&#x2714;</span> Auctions &amp; make-an-offer</div>
             <div class="calc-included-item"><span class="landing-check">&#x2714;</span> 21-day free trial</div>
             <div class="calc-included-item"><span class="landing-check">&#x2714;</span> Optional dev &amp; stage shops</div>
           </div>