contractguardian 0.3.1

• contractguard scan --json now survives pipes: the payload goes to stdout raw (Rich used to soft-wrap it at console width) and progress lines moved to stderr, so | jq works as the README promises.
• The web UI's default model was bare gpt-4o, which OpenRouter does not serve; it now shares the CLI's DEFAULT_MODEL.
• Adds the publish workflow (trusted publisher) so releases land on PyPI as contractguardian.

Upgrade: pip install -U contractguardian