pptrain 0.3.0

Summary

This release standardizes project terminology from mechanism to task across the public API, CLI, config surface, and package layout.

Breaking Changes

• Replace mechanism with task in configs, CLI usage, and public API calls.
• Replace imports under pptrain.mechanisms with pptrain.tasks.
• Legacy aliases and compatibility shims for the old terminology have been removed.

Additional Changes

• Added packaging and terminology tests to prevent the removed namespace from leaking into distributions.
• Verified the release with tests, lint, build, Twine checks, and a fresh-wheel smoke run.

Upgrade

Update imports and config keys from mechanism to task, then reinstall pptrain>=0.3.0.