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>

server/utils/wikidata.ts

@@ -0,0 +1,62 @@
+const SPARQL_ENDPOINT = 'https://query.wikidata.org/sparql'
+
+export interface WikidataAirline {
+  iata: string
+  icao: string | null
+  name: string
+  logoUrl: string | null
+  website: string | null
+}
+
+/**
+ * Fetch all airlines from Wikidata via SPARQL.
+ * Returns deduplicated list by IATA code (first logo wins).
+ */
+export async function getAirlinesFromWikidata(): Promise<WikidataAirline[]> {
+  const query = `
+    SELECT ?airlineLabel ?iata ?icao ?logo ?website WHERE {
+      ?airline wdt:P31 wd:Q46970.
+      ?airline wdt:P229 ?iata.
+      OPTIONAL { ?airline wdt:P230 ?icao. }
+      OPTIONAL { ?airline wdt:P154 ?logo. }
+      OPTIONAL { ?airline wdt:P856 ?website. }
+      SERVICE wikibase:label { bd:serviceParam wikibase:language "es,en". }
+    }
+  `
+
+  const data = await $fetch<{ results: { bindings: Record<string, { value: string }>[] } }>(
+    SPARQL_ENDPOINT,
+    {
+      query: { query, format: 'json' },
+      headers: {
+        'Accept': 'application/sparql-results+json',
+        'User-Agent': 'Vuelato/1.0 (https://github.com/vuelato; contact@vuelato.com)'
+      }
+    }
+  )
+
+  // Deduplicate by IATA code (keep first entry with logo if available)
+  const map = new Map<string, WikidataAirline>()
+
+  for (const row of data.results.bindings) {
+    const iata = row.iata?.value
+    if (!iata) continue
+
+    const existing = map.get(iata)
+    const logoUrl = row.logo?.value || null
+    const website = row.website?.value || null
+
+    // Keep entry with logo/website over entry without
+    if (!existing || (!existing.logoUrl && logoUrl) || (!existing.website && website)) {
+      map.set(iata, {
+        iata,
+        icao: row.icao?.value || existing?.icao || null,
+        name: row.airlineLabel?.value || existing?.name || '',
+        logoUrl: logoUrl || existing?.logoUrl || null,
+        website: website || existing?.website || null
+      })
+    }
+  }
+
+  return Array.from(map.values())
+}