v0.1.2

v0.1.2

• Implements mandatory review.md gate for grill-with-docs.
• Implements mandatory test-plan.md gate for TDD / verification-first planning.
• Archives the add-mandatory-review-and-tdd-gates OpenSpec change and syncs canonical specs.
• Updates /opsx:* prompts, skills, schema templates, overlay checks, installer behavior, and README architecture documentation for the new lifecycle.