Hi Hadi and team,
I'm seriously considering purchasing Tier 3 for my business automation needs. Before I do, I'd like to understand the API & Webhooks capabilities better since I plan to integrate Heffl with n8n for workflow automation.
Could you please clarify:

Webhook events: What events trigger webhooks? (e.g., new lead created, deal stage changed, invoice paid, task completed, etc.)
Webhook payload: Could you share an example of a webhook payload structure?
API endpoints: Is there documentation available? What can I do via API? (create/update leads, deals, contacts, invoices?)
Authentication: How does API authentication work? (API key, OAuth?)
Rate limits: Are there any rate limits on API calls?

Best,
Herve