feat: add Clarity injection utility

src/assets/js/clarityTracking.js

@@ -0,0 +1,21 @@
+// src/assets/js/clarityTracking.js
+
+let clarityInjected = false;
+
+export function injectClarity() {
+  if (clarityInjected) return;
+  clarityInjected = true;
+
+  (function (c, l, a, r, i, t, y) {
+    c[a] =
+      c[a] ||
+      function () {
+        (c[a].q = c[a].q || []).push(arguments);
+      };
+    t = l.createElement(r);
+    t.async = 1;
+    t.src = "https://www.clarity.ms/tag/" + i;
+    y = l.getElementsByTagName(r)[0];
+    y.parentNode.insertBefore(t, y);
+  })(window, document, "clarity", "script", "wccf621mrt");
+}