feat: interactive seguimiento timeline and channel evolution

Sync Superhuman Docs seguimiento/KPI pages into the portal (never passwords)
and show clients a dynamic timeline plus per-channel kpi_weekly charts.

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

src/lib/agency.ts

@@ -17,6 +17,7 @@ export const INTEGRATION_PROVIDERS = [
   { id: 'facebook', label: 'Facebook Page', group: 'social' },
   { id: 'tiktok', label: 'TikTok', group: 'social' },
   { id: 'linkedin', label: 'LinkedIn', group: 'social' },
+  { id: 'superhuman_docs', label: 'Superhuman Docs', group: 'ops' },
 ] as const;
 
 export type IntegrationProviderId =