Key findings from audit:
- Code implementation is CORRECT (uses greaterThan, lessThan, etc.)
- Only documentation showed wrong MongoDB-style operators
- Neural API is complete and functional
- All features preserved, just better organized
This commit establishes the final, correct API documentation.
- Moved API design docs to docs/api-design/
- Moved planning docs to docs/planning/
- Root now only contains standard repo files (README, LICENSE, etc.)
- Keeps CLAUDE.md and PLAN.md uncommitted for privacy
Clean root directory for better project organization.
