Initial ChronoSeal release

frontend/transport.js

@@ -0,0 +1,9 @@
+export async function sendRequest(url, method, body) {
+    const res = await fetch(url, {
+        method,
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify(body)
+    });
+    if (!res.ok) throw new Error(`Request failed: ${res.status}`);
+    return res.json();
+}