DRS - System Does Not Return to Entity ID After Document Upload

### Description:
Sharon's team reported that after a document is uploaded and saved, the system does not return to the Entity ID that was being worked on. As a result, the Entity ID must be manually typed in or filtered to retrieve the record and confirm that the upload was successful before proceeding.

### Steps to Reproduce:
Upload a document under any entity in DRS.

Save the document.
Observe that the system does not return to the original Entity ID the user was working on.

They have to manually type it in and/or filter it to retrieve it to ensure it worked before they move on

### Expected Result:
After saving an uploaded document, the system should return to the same Entity ID automatically.
### Actual Result:
The system does not return to the Entity ID, requiring manual re-entry or filtering to locate the record.

Start by tracing the DRS document-upload and save flow in the JavaScript frontend, using the reproduction steps to find where navigation returns after saving. Confirm the current Entity ID is preserved through the upload, then verify that saving returns to that same entity and that the record remains available for confirmation.

Written by the indexing model from the issue text.