{"name":"Enterprise Chat SaaS API","version":"1.0.0","endpoints":{"POST /upload":"Upload a file (multipart/form-data)","POST /upload/presigned":"Get presigned URL for direct upload","GET /upload/:fileId/url":"Get download URL for a file","DELETE /upload/:fileId":"Delete a file","POST /tenant/setup":"Configure a tenant programmatically","GET /tenant/:tenantId/config":"Get tenant config","GET /tenant/:tenantId/health":"Check tenant health","GET /health":"Health check"},"headers":{"x-tenant-id":"Required for upload operations"}}