SIN Table Update

**User Story**
As a ministry user, I want to have more information about the SIN verification process.

**Acceptance Criteria**
- [ ] Add given name/last name to the table
- [ ] Update the response code to something more descriptive

No file or test is named. Start by searching the repository for the SIN verification table and its current response-code handling, then trace where the table data is defined or displayed. Done means given name and last name appear in the table and the response code is replaced with a more descriptive value; run the relevant existing checks you find.

Written by the indexing model from the issue text.