feat: wire guide data source and POI focus UI

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/components/floor/FloorSelector.vue

@@ -30,16 +30,9 @@ const emit = defineEmits<{
   change: [floorId: string]
 }>()
 
-const currentFloor = ref(props.current || '1F')
+const currentFloor = ref(props.current || props.floors?.[0]?.id || '')
 
-const defaultFloors: Floor[] = [
-  { id: '3F', label: '3F' },
-  { id: '2F', label: '2F' },
-  { id: '1F', label: '1F' },
-  { id: 'B1', label: 'B1' }
-]
-
-const floors = props.floors || defaultFloors
+const floors = props.floors || []
 
 const handleFloorClick = (floor: Floor) => {
   if (floor.disabled) return