- Fix ambiguous fullwidth characters (commas, parentheses) in strings and comments
- Replace Chinese comments with English equivalents
- Fix unused imports with proper noqa annotations for intentional imports
- Fix bare except clauses with specific exception types
- Fix redefined variables and undefined names
- Add ruff noqa annotations for generated protobuf files
- Add lint and format check to GitHub Actions CI pipeline
* chore: shorter build time
* chore: update faiss
* fix: no longger do embedding server reuse
* fix: do not reuse emb_server and close it properly
* feat: cli tool
* feat: cli more args
* fix: same embedding logic
