fix(market): live time calculation + cleanup dead /intelligence redirect

- Calculate time_remaining live from end_time ISO string (UTC)
  instead of using static backend string. This ensures time is
  always accurate even if page stays open for hours.
- Remove /intelligence redirect page (was only a redirect to /tld-pricing)
- Add getSecondsUntilEnd() and calcTimeRemaining() helpers

frontend/src/app/intelligence/page.tsx

@@ -1,26 +0,0 @@
-'use client'
-
-import { useEffect } from 'react'
-import { useRouter } from 'next/navigation'
-
-/**
- * Redirect /intelligence to /tld-pricing
- * This page is kept for backwards compatibility
- */
-export default function IntelligenceRedirect() {
-  const router = useRouter()
-  
-  useEffect(() => {
-    router.replace('/tld-pricing')
-  }, [router])
-  
-  return (
-    <div className="min-h-screen flex items-center justify-center bg-background">
-      <div className="text-center">
-        <div className="w-6 h-6 border-2 border-accent border-t-transparent rounded-full animate-spin mx-auto mb-4" />
-        <p className="text-foreground-muted">Redirecting to TLD Pricing...</p>
-      </div>
-    </div>
-  )
-}
-

frontend/src/app/terminal/market/page.tsx

@@ -84,6 +84,38 @@ function parseTimeToSeconds(timeStr?: string): number {
   return seconds || Infinity
 }
 
+/**
+ * Calculate time remaining from end_time ISO string (UTC).
+ * Returns human-readable string like "2h 15m" or "Ended".
+ */
+function calcTimeRemaining(endTimeIso?: string): string {
+  if (!endTimeIso) return 'N/A'
+  const end = new Date(endTimeIso).getTime()
+  const now = Date.now()
+  const diff = end - now
+  
+  if (diff <= 0) return 'Ended'
+  
+  const seconds = Math.floor(diff / 1000)
+  const days = Math.floor(seconds / 86400)
+  const hours = Math.floor((seconds % 86400) / 3600)
+  const mins = Math.floor((seconds % 3600) / 60)
+  
+  if (days > 0) return `${days}d ${hours}h`
+  if (hours > 0) return `${hours}h ${mins}m`
+  if (mins > 0) return `${mins}m`
+  return '< 1m'
+}
+
+/**
+ * Get seconds until end from ISO string (for sorting/urgency).
+ */
+function getSecondsUntilEnd(endTimeIso?: string): number {
+  if (!endTimeIso) return Infinity
+  const diff = new Date(endTimeIso).getTime() - Date.now()
+  return diff > 0 ? diff / 1000 : -1
+}
+
 function formatPrice(price: number, currency = 'USD'): string {
   return new Intl.NumberFormat('en-US', { 
     style: 'currency', 
@@ -396,7 +428,7 @@ export default function MarketPage() {
         case 'domain': return mult * a.domain.localeCompare(b.domain)
         case 'score': return mult * (a.pounce_score - b.pounce_score)
         case 'price': return mult * (a.price - b.price)
-        case 'time': return mult * (parseTimeToSeconds(a.time_remaining) - parseTimeToSeconds(b.time_remaining))
+        case 'time': return mult * (getSecondsUntilEnd(a.end_time) - getSecondsUntilEnd(b.end_time))
         case 'source': return mult * a.source.localeCompare(b.source)
         default: return 0
       }
@@ -584,9 +616,10 @@ export default function MarketPage() {
             ) : (
               <div className="divide-y divide-white/5">
                 {filteredItems.map((item) => {
-                  const timeLeftSec = parseTimeToSeconds(item.time_remaining)
-                  const isUrgent = timeLeftSec < 3600
+                  const timeLeftSec = getSecondsUntilEnd(item.end_time)
+                  const isUrgent = timeLeftSec > 0 && timeLeftSec < 3600
                   const isPounce = item.is_pounce
+                  const displayTime = item.status === 'auction' ? calcTimeRemaining(item.end_time) : null
 
                   return (
                     <div 
@@ -664,7 +697,7 @@ export default function MarketPage() {
                               : "text-zinc-400 border-zinc-700 bg-zinc-800/50"
                           )}>
                             <Clock className="w-3 h-3" />
-                            {item.time_remaining || 'N/A'}
+                            {displayTime || 'N/A'}
                           </div>
                         )}
                       </div>