Basecamp project management integration endpoints
/api/basecamp
GET /api/basecamp/projects
{ "projects": [ { "id": "123456", "name": "Acme Corp Deal", "description": "Partnership project", "created_at": "2024-01-15T10:00:00Z" } ] }
GET /api/basecamp/files?project_id={project_id}
POST /api/basecamp/sync/{project_id}
{ "company_id": "550e8400-e29b-41d4-a716-446655440000" }