v1.0.0 - Evaluator Contract Extension

Bug Fixes

• Bash: Fix jq -s + [inputs] incompatibility — all composition strategies were broken (strict→pass, majority→null, optimistic→block)
• Bash: Fix majority tie-breaking — was picking alphabetically instead of by severity
• PowerShell: Fix majority tie-breaking — same alphabetical-vs-severity bug
• Bash: Replace mapfile with portable while read loop for macOS bash 3.2 compatibility

CI/CD

• Multi-OS test matrix: Python (ubuntu/windows/macos), Bash (ubuntu/macos), PowerShell (ubuntu/windows/macos)
• CodeQL security analysis (actions, python)

Verification

All 9 CI jobs pass across ubuntu-latest, windows-latest, and macos-latest.