fix(extractor): filtrar 'Translate' y botones de UI de Threads como ruido

El botón 'Translate' que Jina captura de la UI de Threads se colaba
como texto válido al final del contenido del post. Añadidos al filtro
isGenericThreadsText: translate, see translation, see original,
traducir, ver original/traducción (insensible a mayúsculas).

Author: D4vRAM369

src/lib/utils/post-extractor.ts

@@ -512,7 +512,7 @@ function isGenericThreadsText(value?: string): boolean {
   if (!value) return false
   const v = value.trim()
   // Etiquetas de metadatos de perfil/post que Jina renderiza
-  if (/^(?:author|follow|followers?|following|published|likes?|reposts?|replies|related\s+threads|related\s+posts|destacadas|ver\s+actividad)$/i.test(v)) return true
+  if (/^(?:author|follow|followers?|following|published|likes?|reposts?|replies|related\s+threads|related\s+posts|destacadas|ver\s+actividad|translate|see\s+translation|see\s+original|traducir|ver\s+(?:original|traducci[oó]n))$/i.test(v)) return true
   // Strings de login/auth o navegación de hilos
   return /log in to see more replies|sign in (?:with|to) (?:instagram|facebook|threads)|join threads to share ideas|threads\s*•\s*log in|log in or sign up|log in with (?:your\s+)?(?:instagram|facebook|username)|sign up for threads|continue with (?:instagram|facebook)|create (?:a )?new account|forgot (?:your )?password|don'?t have an account|join the conversation|see what people are talking about|what'?s on your mind/i.test(v)
 }