{"message":"Nurturing Campaign PoC API","version":"1.0.0","endpoints":{"POST /api/leads":"Add new lead","POST /api/leads/:id/assign":"Assign lead to campaign","POST /api/tick":"Simulate time passing for all leads","POST /api/leads/:id/action":"Record action for a lead","GET /api/leads/:id":"Get lead status/state","GET /api/leads":"List all leads","GET /api/campaigns":"List all campaigns","GET /health":"Health check"}}