Update app.py

app.py

@@ -1517,7 +1517,7 @@ async def root():
         
           function copyCode(btn) {
             const block = btn.parentElement;
-            const text = block.innerText.replace(/^copy\n?/, '').trim();
+            const text = block.innerText.replace(new RegExp('^copy\\n?'), '').trim();
             navigator.clipboard.writeText(text).then(() => {
               btn.textContent = '✓ copied';
               setTimeout(() => btn.textContent = 'copy', 1800);
@@ -1534,7 +1534,7 @@ async def root():
             const statusEl = document.getElementById(statusId);
             area.style.display = 'block';
             statusEl.className = 'status-pill ' + (status === 200 ? 'status-200' : 'status-err');
-            statusEl.textContent = status + ' Error';
+            statusEl.textContent = status === 200 ? status + ' OK' : status + ' Error';
             document.getElementById(outId).textContent = JSON.stringify(data, null, 2);
           }
         
@@ -1609,8 +1609,11 @@ async def root():
         
           function escHtml(s) {
             if (!s) return '';
-            return String(s).replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
-          }
+            return String(s)
+                .replace(new RegExp('&', 'g'), '&amp;')
+                .replace(new RegExp('<', 'g'), '&lt;')
+                .replace(new RegExp('>', 'g'), '&gt;');
+        }
         
           // ── JOURNEY ──
           async function runJourney() {