Upload, retrieve, and organize documents (e.g., SDS files, permits) via the Cority Enviance DocumentService API

Steps

1. Authenticate first via `POST /ver2/AuthenticationService.svc/sessions` (username/password) or the OAuth token endpoint, and send the resulting session ID/token as the `Authorization` header on every call.
2. Create a folder to hold related documents with `POST /ver2/DocumentService.svc/folders`, supplying `name`, `description`, and `parentFolder` (e.g. `"/"` for the root).
3. Upload a document with `POST /ver2/DocumentService.svc/documents`, providing its name, target folder, and base64-encoded `content`.
4. Retrieve a document's metadata/content with `GET /ver2/DocumentService.svc/documents/{documentIdOrPath}`, addressing it by ID or by its folder path (e.g. `/safety/sds/acetone`).
5. Update an existing document with `PATCH /ver2/DocumentService.svc/documents/{documentIdOrPath}`, using the `UpdateExistingVersion` query flag to control whether the change creates a new version or overwrites the current one.
6. Delete individual documents or entire folders with `DELETE` on the same `documents/{documentIdOrPath}` endpoint.