feat: Add Jira MCP integration and improve code quality

[cfdude]

Summary

This PR adds comprehensive Jira MCP server integration and implements significant code quality improvements.

🚀 New Features

• Jira MCP Integration: Complete client implementation with health checks and server discovery
• Cross-Server Communication: Bidirectional handlers for Confluence ↔ Jira integration
• Smart Linking: Automatic linking between Confluence pages and Jira issues
• Safety Boundaries: Comprehensive validation and error handling for cross-server operations

🧹 Code Quality Improvements

• Prettier Integration: Added with comprehensive formatting configuration
• Quality Scripts: New npm scripts for streamlined quality control
  • quality:check - Run all checks without modifications
  • quality:fix - Auto-fix formatting and linting issues
  • quality:full - Complete quality pipeline with tests
• ESLint Cleanup: Fixed all errors, reduced warnings to acceptable levels
• Production Ready: Removed console statements and debug code
• TypeScript: Resolved all compilation issues and syntax errors

🔧 Infrastructure

• Health Monitoring: Cross-server health check endpoints
• Server Discovery: Automatic detection and polling of connected MCP servers
• Configuration: Enhanced with .env.example template and validation
• Error Handling: Comprehensive error boundaries and user-friendly messages

📊 Changes Summary

• 24 files changed, 3,251 insertions(+), 651 deletions(-)
• All tests passing ✅
• ESLint: 0 errors, 13 warnings (only acceptable 'any' type warnings)
• Prettier: All files properly formatted ✅
• TypeScript: Clean compilation ✅

🧪 Testing

• All existing tests continue to pass
• New cross-server functionality includes comprehensive error handling
• MCP inspector compatible for manual testing

⚠️ Breaking Changes

None - all changes are additive and backward compatible.

📋 Checklist

• [x] Code follows project conventions
• [x] All tests pass
• [x] ESLint warnings reduced to acceptable levels
• [x] Prettier formatting applied
• [x] TypeScript compilation successful
• [x] No hardcoded credentials or sensitive data
• [x] Documentation updated where needed
• [x] Backward compatibility maintained