Add agent-driven deterministic baseline authoring

[Spenquatch]

Summary

• Add deterministic baseline authoring flows for charter, project context, and environment inventory
• Wire CLI, compiler, and engine changes to support the new authoring pipeline and rendering updates
• Update install assets, CI, fixtures, and snapshot coverage for the new handbook-home experience

Testing

• Added and updated unit/integration coverage for authoring, doctor, resolver, and refusal mapping paths
• Updated CLI snapshot tests for help output and authoring commands
• Verified with live smoke coverage for install and authoring flows