[Gap] Spec 'Done Prev Gap' has unimplemented requirements

## Gap Detection Report

**Spec ID:** spec-done-prev
**Spec Name:** Done Prev Gap
**Coverage Score:** 0.00
**Threshold:** 0.50
**Analysis Method:** LLM

### Missing / Incomplete Requirements

- authorization middleware not found
- secure endpoints not implemented
- no authentication or authorization logic present in code

_This issue was automatically created by the gap-detection cron job._