feat: tipos OSINT para dominio cybersecurity

13 tipos product (person, email, domain, IP, phone, social_media, organization, location, vulnerability, malware, crypto_wallet, document, event) para modelar entidades de inteligencia de fuentes abiertas.

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

functions/cybersecurity/osint_domain.go

@@ -0,0 +1,10 @@
+package cybersecurity
+
+// OsintDomain represents an internet domain tracked in an OSINT investigation.
+type OsintDomain struct {
+	FQDN        string   `json:"fqdn"`
+	Registrar   string   `json:"registrar"`
+	CreatedDate string   `json:"created_date"`
+	ExpiresDate string   `json:"expires_date"`
+	NameServers []string `json:"name_servers"`
+}