Fix about page voice, wire founding badge and dynamic counter

About: rewritten in memoir register — flowing connected sentences,
no staccato, no resignation mention, no employer mention.

Founding counter: polls /api/founding-count every 90s, updates DOM
in place with flash animation on new claims. Webhook now increments
the sold counter when a founding purchase completes.

Badge: founding_badge.el component with guilloché SVG background,
corner rosettes, member number, glow animation. Rendered on success page.

Pricing: "at cost" removed, parent onboarding callout added.

src/styles.el

@@ -1361,6 +1361,46 @@ fn page_close() -> String {
     revealEls.forEach(function(el) { el.classList.add('visible'); });
   }
 
+  // ── Founding counter — live polling ──────────────────────────────────────
+  var prevSold = null;
+  function updateFoundingUI(data) {
+    var remaining = data.remaining;
+    var sold = data.sold;
+    var total = data.total;
+    var pct = Math.round((sold / total) * 100);
+    var flash = prevSold !== null && sold > prevSold;
+    prevSold = sold;
+
+    // spots card (inside pricing card)
+    var spotLabel = document.querySelector('.founding-spots-label');
+    if (spotLabel) spotLabel.textContent = 'Only ' + remaining + ' left';
+    var spotFill = document.querySelector('.founding-spots-fill');
+    if (spotFill) spotFill.style.width = pct + '%';
+    var spotSub = document.querySelector('.founding-spots-sub');
+    if (spotSub) spotSub.textContent = sold + ' of ' + total + ' claimed';
+
+    // banner
+    var bannerCount = document.querySelector('.founding-banner-count');
+    if (bannerCount) {
+      bannerCount.textContent = remaining;
+      if (flash) {
+        bannerCount.style.color = '#0078D4';
+        setTimeout(function() { bannerCount.style.color = ''; }, 1200);
+      }
+    }
+    var bannerFill = document.querySelector('.founding-banner-fill');
+    if (bannerFill) bannerFill.style.width = pct + '%';
+  }
+
+  function pollFoundingCount() {
+    fetch('/api/founding-count')
+      .then(function(r) { return r.json(); })
+      .then(function(data) { updateFoundingUI(data); })
+      .catch(function() {});
+  }
+  pollFoundingCount();
+  setInterval(pollFoundingCount, 90000);
+
   // Stripe checkout
   var checkoutBtns = document.querySelectorAll('[data-checkout]');
   checkoutBtns.forEach(function(btn) {