pmat 3.17.0

PMAT - Zero-config AI context generation and code quality toolkit (CLI, MCP, HTTP)
# Release Summary: v0.27.0

## ✅ Release Checklist

- [x] All code changes implemented
- [x] Property-based tests added (500+ tests)
- [x] MCP server integration tests passing (10 tests)
- [x] GitHub integration working
- [x] Documentation updated
- [x] Release notes prepared
- [x] Version bumped to 0.27.0
- [x] Lint checks passing (`make lint`)
- [x] SATD removed (fixed TODO comment)
- [x] Low complexity verified (max cyclomatic: 7)
- [x] Git commit created
- [x] Pushed to GitHub
- [x] GitHub release created: https://github.com/paiml/paiml-mcp-agent-toolkit/releases/tag/v0.27.0
- [x] Crates.io dry-run successful
- [x] All tests passing (fixed cache consistency + SARIF tool name tests)

## 📊 Quality Metrics

- **SATD**: 0 items (was 1, fixed)
- **Max Cyclomatic Complexity**: 7 (well below threshold)
- **Max Cognitive Complexity**: 17 (acceptable)
- **Test Coverage**: Comprehensive property tests added
- **Lint Status**: All checks passing

## 🚀 Major Features Delivered

1. **Stateful MCP Server**
   - Persistent refactoring sessions
   - JSON-RPC API with 4 methods
   - Cap'n Proto schema ready
   - Thread-safe state management

2. **GitHub Issue Integration**
   - `--github-issue` flag added
   - Intelligent keyword extraction
   - Enhanced AI context

3. **Property-Based Testing**
   - 6 components covered
   - 500+ test cases
   - Edge cases discovered and fixed

## 📁 Files Changed Summary

- **New Files**: 20+
- **Modified Files**: 25+
- **Deleted Files**: 70+ (cleaned up old todo/bug files)
- **Total Changes**: 9,018 insertions, 40,440 deletions

## 🔄 Next Steps for Publishing

To publish to crates.io:
```bash
cd server
cargo publish --no-verify
```

Note: The `--no-verify` flag is needed due to vendor assets being downloaded during build.

## 🎉 Success!

All three specifications have been successfully implemented, tested, and released. The pmat toolkit now features:
- Robust property-based testing
- Stateful MCP server for complex workflows
- Intelligent GitHub issue integration

The implementation maintains high code quality standards with zero SATD and low complexity metrics.