Update web/app.js

web/app.js

@@ -1,12 +1,27 @@
-async function runProgram() {
-  const program = document.getElementById("program").value;
+<hr>
+<h3>World Simulator</h3>
 
-  const response = await fetch("/run", {
+<button onclick="initWorld()">Init World (50 Agents)</button>
+<button onclick="stepWorld()">Step World</button>
+
+<pre id="world"></pre>
+
+<script>
+async function initWorld() {
+  const res = await fetch("/world/init", {
     method: "POST",
     headers: { "Content-Type": "application/json" },
-    body: JSON.stringify({ program_hex: program })
+    body: JSON.stringify({ agents: 50 })
   });
+  const data = await res.json();
+  document.getElementById("world").textContent =
+    JSON.stringify(data, null, 2);
+}
 
-  const data = await response.json();
-  document.getElementById("output").textContent = data.stdout || data.stderr;
-}
+async function stepWorld() {
+  const res = await fetch("/world/step", { method: "POST" });
+  const data = await res.json();
+  document.getElementById("world").textContent =
+    JSON.stringify(data, null, 2);
+}
+</script>