Unify catalog cards and fix offer point color

- Change point color on /catalog/offers to green (#22c55e)
- Replace custom route card with OfferResultCard on supplier hub page

app/pages/catalog/offers/index.vue

@@ -7,7 +7,7 @@
     use-server-clustering
     cluster-node-type="offer"
     map-id="offers-products-map"
-    point-color="#3b82f6"
+    point-color="#22c55e"
     :hovered-id="hoveredProductId"
     @update:hovered-id="hoveredProductId = $event"
   >
@@ -80,15 +80,8 @@ const goToProduct = (productId: string) => {
   navigateTo(localePath(`/catalog/offers/${productId}`))
 }
 
-// Mock price history generator (seeded by uuid for consistent results)
-const getMockPriceHistory = (uuid: string): number[] => {
-  const seed = uuid.split('').reduce((acc, char) => acc + char.charCodeAt(0), 0)
-  const basePrice = 100 + (seed % 200)
-  return Array.from({ length: 7 }, (_, i) => {
-    const variation = Math.sin(seed + i * 0.5) * 20 + Math.cos(seed * 0.3 + i) * 10
-    return Math.round(basePrice + variation)
-  })
-}
+// Price history - empty for now, will be populated from real data
+const getPriceHistory = (_uuid: string): number[] => []
 
 // Initialize
 await init()