🚀 Serverless Framework v3 Migration

This PR migrates the project from Serverless Framework v2 to v3, bringing improved performance, better error handling, and updated dependencies.

📊 Migration Summary

Migration completed

🔧 Key Changes Made

🧪 Testing Recommendations

• Run pytest -v test.py or python3.9 test.py for local validation.
• Test handler via serverless offline plugin.
• Review deployment in dev stage and ensure API Gateway integration and security headers.

🚨 Breaking Changes & Manual Review Items

• ✅ No breaking changes identified
• ✅ No manual review items required

🔄 Rollback Instructions

• Restore files from .backup versions if issues arise

📚 Documentation & References

• Serverless Framework v3 Migration Guide
• Breaking Changes Documentation

🔍 Review Checklist

• All serverless.yml configurations are valid
• Dependencies are up to date and compatible
• Error handling improvements are appropriate
• Runtime versions are current and supported
• Plugin configurations work with v3
• API endpoints respond correctly
• Lambda functions execute without errors
• CloudWatch logs show proper operation