Add software architecture review as a standard part of PR review process:
- Reference software-architecture skill for patterns and checklists
- Spawn software-architect agent for architectural analysis
- Add checks for pattern consistency, dependency direction, breaking changes,
module boundaries, and error handling
- Structure review output with separate Code Review and Architecture Review
sections
Closes#60
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
