update readme

do  Ward table missing critical clinical columns

vigilcare-dashboard/src/composables/wardFormat.js

@@ -0,0 +1,56 @@
+const STALE_MS = 2 * 60 * 60 * 1000
+const CRITICAL_STALE_MS = 4 * 60 * 60 * 1000
+
+export function formatLengthOfStay(admittedAt, asOf = new Date()) {
+  if (!admittedAt) return '—'
+  const start = new Date(admittedAt).getTime()
+  if (Number.isNaN(start)) return '—'
+
+  const diffMs = Math.max(0, asOf.getTime() - start)
+  const days = Math.floor(diffMs / (24 * 60 * 60 * 1000))
+  if (days >= 1) return `${days}d`
+  const hours = Math.floor(diffMs / (60 * 60 * 1000))
+  if (hours >= 1) return `${hours}h`
+  return '<1h'
+}
+
+export function observationStaleness(lastObservationAt, status, asOf = new Date()) {
+  if (status && status !== 'Active') return null
+  if (!lastObservationAt) return 'missing'
+
+  const ageMs = asOf.getTime() - new Date(lastObservationAt).getTime()
+  if (ageMs > CRITICAL_STALE_MS) return 'critical'
+  if (ageMs > STALE_MS) return 'stale'
+  return 'fresh'
+}
+
+export function formatLastObservation(lastObservationAt) {
+  if (!lastObservationAt) return 'No vitals'
+  return new Date(lastObservationAt).toLocaleString([], {
+    month: 'short',
+    day: 'numeric',
+    hour: '2-digit',
+    minute: '2-digit',
+  })
+}
+
+export function stalenessClass(level) {
+  if (level === 'critical') return 'text-red-600 dark:text-red-400'
+  if (level === 'stale') return 'text-amber-600 dark:text-amber-400'
+  if (level === 'missing') return 'text-gray-400 dark:text-gray-500'
+  return 'text-gray-700 dark:text-gray-300'
+}
+
+export function formatGcsClassification(classification) {
+  if (!classification) return ''
+  const map = {
+    MILD: 'Mild',
+    MODERATE: 'Mod',
+    SEVERE: 'Severe',
+  }
+  return map[classification] ?? classification
+}
+
+export function patientRoom(patient) {
+  return patient.roomBed ?? patient.room ?? '—'
+}