Jeeves currently fails if a ID is reused

**Describe the bug**
When a user tries to anonymize a repo multiple times it will fail as the job is already created.

**To Reproduce**
Rerun the anonymize slash command with the same input

**Expected behavior**
We should check if the job already exists and the status of the job, if it has completed we should attach a ID to the end of the job name and rerun it. If it failed we should delete it and rerun it.

**Screenshots**

**Additional context**
We should try and make this intuitive.

Start at the anonymize slash command and trace how it creates, checks, and removes jobs. Reproduce the failure by rerunning the command with the same input, then verify that completed jobs receive a unique ID suffix and failed jobs are deleted before rerun.

Written by the indexing model from the issue text.