Initial commit: Vuelato - buscador de vuelos

Nuxt 4 + Supabase + Flightics API. Incluye búsqueda de vuelos,
inspiraciones, watchlist, tracking de precios y mapa interactivo.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app/composables/useLocations.ts

@@ -0,0 +1,67 @@
+interface AirportResult {
+  iata: string
+  name: string
+  city_name: string
+  country_code: string
+  country_name: string
+  lat: number | null
+  lon: number | null
+}
+
+export function useLocations() {
+  const supabase = useSupabaseClient()
+
+  const airports = ref<AirportResult[]>([])
+  const loaded = ref(false)
+
+  async function loadAirports() {
+    if (loaded.value) return
+    const { data } = await supabase
+      .from('airports')
+      .select('iata, name, city_name, country_code, country_name, lat, lon')
+      .order('iata')
+      .limit(10000)
+    if (data && data.length > 0) {
+      airports.value = data as AirportResult[]
+      loaded.value = true
+    } else {
+      // Fallback: fetch from Flightics API and cache in Supabase
+      await syncLocations()
+    }
+  }
+
+  async function syncLocations() {
+    try {
+      const data = await $fetch('/api/sync/locations', { method: 'POST' })
+      if (data?.count) {
+        // Reload from Supabase after sync
+        const { data: fresh } = await supabase
+          .from('airports')
+          .select('iata, name, city_name, country_code, country_name, lat, lon')
+          .order('iata')
+        airports.value = (fresh as AirportResult[]) || []
+        loaded.value = true
+      }
+    } catch {
+      // Silently fail, user can retry
+    }
+  }
+
+  function normalize(s: string): string {
+    return s.normalize('NFD').replace(/[\u0300-\u036f]/g, '').toLowerCase()
+  }
+
+  function searchAirports(query: string): AirportResult[] {
+    if (!query || query.length < 2) return []
+    const q = normalize(query)
+    return airports.value
+      .filter(a =>
+        normalize(a.iata).includes(q) ||
+        normalize(a.name).includes(q) ||
+        normalize(a.city_name || '').includes(q)
+      )
+      .slice(0, 20)
+  }
+
+  return { airports, loaded, loadAirports, searchAirports, syncLocations }
+}