Generic error when importing Robot Framework XML with summaries exceeding 255 characters

When importing a Robot Framework XML file via the REST API, the system returns a generic error message if a test case summary (title) exceeds the 255-character limit. The error does not specify that the character limit is the root cause, making debugging difficult for the user.

Steps to Reproduce

1. Create a .xml file following the standard Robot Framework output format.

1. In one of the test cases, define a summary/name longer than 255 characters.

1. Attempt to import this file through the REST API endpoint.

Actual Result: The server responds with a generic error

Expected Result: A descriptive error message is returned.