Available Endpoints:
GET /health
API health check endpoint
GET /qbo/oauth2/start
Start QuickBooks OAuth2 authorization flow
GET /qbo/oauth2/callback
OAuth2 callback endpoint (used by QuickBooks)
POST /webhook
QuickBooks webhook endpoint for real-time updates
POST /webhook/docuseal
DocuSeal webhook endpoint for template/submission events
GET /qbo/status
QuickBooks authorization status information
GET /scheduler/vendor-documents/check
Manual vendor document expiry check
GET /scheduler/vendor-documents/status
Vendor document expiry status summary
POST /email/send
Send custom email notification
GET /scheduler/status
Background scheduler status and tasks
GET /docs
Interactive API documentation (Swagger UI)