Release 1.3.0

Release 1.2.0

Release v1.1.0: Testing infrastructure complete

Release 1.0.0 - Production baseline

Working features:
- One-line curl setup for Kaggle notebooks
- Zrok tunnel for SSH access
- VS Code Remote-SSH support
- GPU environment propagation
- Extension installation

Known limitations:
- Limited test coverage
- Environment variable append (not fully idempotent)
- No version tracking in scripts