initial upload

internal/app/static/app.js

@@ -0,0 +1,16 @@
+document.addEventListener("click", async (event) => {
+  const button = event.target.closest("[data-copy]");
+  if (!button) return;
+  const target = document.querySelector(button.dataset.copy);
+  if (!target) return;
+  try {
+    await navigator.clipboard.writeText(target.textContent.trim());
+    const original = button.textContent;
+    button.textContent = "Copied";
+    window.setTimeout(() => {
+      button.textContent = original;
+    }, 1500);
+  } catch {
+    button.textContent = "Copy failed";
+  }
+});