Add root Dockerfile for deployment

dashboard.js

@@ -0,0 +1,49 @@
+const requestCountEl = document.getElementById('requestCount')
+const averageTimeEl = document.getElementById('averageTime')
+const appStatusEl = document.getElementById('appStatus')
+const statusBadgeEl = document.getElementById('statusBadge')
+const statusTextEl = document.getElementById('statusText')
+const lastUpdatedEl = document.getElementById('lastUpdated')
+
+function setStatus(isUp) {
+  statusBadgeEl.classList.remove('up', 'down')
+  appStatusEl.classList.remove('up', 'down')
+
+  if (isUp) {
+    statusBadgeEl.classList.add('up')
+    appStatusEl.classList.add('up')
+    statusTextEl.textContent = 'Online'
+    appStatusEl.textContent = 'Up'
+    return
+  }
+
+  statusBadgeEl.classList.add('down')
+  appStatusEl.classList.add('down')
+  statusTextEl.textContent = 'Offline'
+  appStatusEl.textContent = 'Down'
+}
+
+async function fetchStats() {
+  try {
+    const response = await fetch('/api/stats')
+
+    if (!response.ok) {
+      throw new Error('Stats request failed')
+    }
+
+    const data = await response.json()
+
+    requestCountEl.textContent = data.requestCount.toLocaleString()
+    averageTimeEl.textContent = `${data.averageResponseTime.toFixed(3)}s`
+    setStatus(data.status === 'up')
+    lastUpdatedEl.textContent = `Last updated: ${new Date().toLocaleTimeString()}`
+  } catch (error) {
+    requestCountEl.textContent = '—'
+    averageTimeEl.textContent = '—'
+    setStatus(false)
+    lastUpdatedEl.textContent = 'Last updated: failed to connect'
+  }
+}
+
+fetchStats()
+setInterval(fetchStats, 5000)