chore: release packages

- Updated Node.js version in .mise.toml, .node-version, and CI workflows.
- Adjusted package.json to reflect the new Node.js engine compatibility.
- Added a changeset to standardize the runtime environment on Node.js 26.4.0.

…iew process

- Revised the README to reflect the current product direction, emphasizing the binding of executable GraphReFly identities to source and intent.
- Expanded on the responsibilities of different product layers and clarified the sequence of operations.
- Updated package version references to 0.1.8 and Node.js version to 26.4.0.
- Enhanced explanations of the review process and the role of deterministic evidence in decision-making.

…ate decision guard

- Added a section on personal project governance to AGENTS.md, outlining the use of the `$project-governance` skill for decision-making processes.
- Updated the stack-decision-guard SKILL.md to emphasize the application of the personal governance skill before any decision or work classification.
- Made minor adjustments to the phases.jsonl file to maintain consistency with the new governance structure.