- Added ERROR status for execution failures (command not found, permission error)
- Added status definitions: PASS, FAIL, SKIP, ERROR with clear criteria
- Restructured PR template with three validation sections:
- Automated Checks: table of executed checks with status
- Manual Verification Required: unchecked boxes from plan
- CONTRIBUTING.md Compliance: extracted requirements with verification status
- Added instructions to extract manual verification items from plans
- Enhanced CONTRIBUTING.md extraction to track automated vs manual requirements
- Updated validation summary format to include error count