- cli/commands/analyst.py: delete partial parquet file on download failure to unblock re-download
- cli/commands/analyst.py: escape single quotes in parquet path to prevent SQL injection
- app/api/metrics.py: replace tempfile-based import with inline YAML parse + direct repo.create(); validates name+category upfront and returns 400 if missing; removes os/tempfile imports
- CLAUDE.md: update schema version text to v4 with full migration chain
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>