Consolidates all open technical debt into three workplans:
- CUST-WP-0018: API hardening & code quality (TD-006–019 medium/high items)
- CUST-WP-0019: Dashboard UX polish (Repos nav restructure, config.js cleanup,
todo filter fix for new suggestion workflow statuses)
- CUST-WP-0020: pytest test suite with real DB (TD-014)
Also fixes todo.md Suggestions filter: was checking status===open but new
suggestions enter with status=submitted; now excludes terminal statuses only.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>