Legacy Report Endpoints Marked Deprecated

We marked two legacy report endpoints as deprecated in our OpenAPI documentation and added guidance directing consumers to their newer alternatives:

• POST /api/v1/reports/custom → Get Data from Dataset v2 at POST /api/v2/datasets/{datasetName}/data
• GET /api/v1/reports/{id} → Get Report by ID at GET /api/v1/custom-reports/{reportId}

The annotations did not disable the legacy endpoints or remove access. No sunset date or removal timeline has been set, and existing integrations can continue using them. We recommend the newer endpoints for new development and encourage existing integrations to evaluate migration during future maintenance.