feat: auditoría SEO real con histórico y avisos

Crawl técnico (HTTPS/robots/sitemap/on-page) + tabla seo_audits; UI con nota, checks y alertas.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/lib/organic.ts

@@ -65,6 +65,28 @@ export type IntegrationLite = {
   external_account_id?: string | null;
   last_sync_at?: string | null;
   error_message?: string | null;
+  meta?: { property_id?: string; site_url?: string };
+};
+
+export type SeoAuditCheckRow = {
+  id: string;
+  category: string;
+  title: string;
+  status: 'ok' | 'info' | 'warn' | 'critical';
+  detail: string;
+};
+
+export type SeoAuditRow = {
+  id?: string;
+  tenant_id?: string;
+  site_url?: string;
+  score?: number;
+  grade?: string;
+  warning_count?: number;
+  critical_count?: number;
+  checks?: SeoAuditCheckRow[];
+  summary?: string | null;
+  created_at?: string;
 };
 
 function n(v: unknown): number {