Added ECMA Code Sandbox connector Implementation

[zubairirfan96]

📝 Description

Implemented ECMA Code Sandbox connector, which will allow agents to run ecma code in sandbox environment.
If Sandbox Url is passed in connector settings, code will run in remote sandbox environment. However, if sandbox is not present, code will run in isolated-vm environment

🔗 Related Issues

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• Fixes #
• Relates to #

🔧 Type of Change

• 🐛 Bug fix (non-breaking change that fixes an issue)
• ✨ New feature (non-breaking change that adds functionality)
• 📚 Documentation update
• 🔧 Code refactoring (no functional changes)
• 🧪 Test improvements
• 🔨 Build/CI changes

✅ Checklist

• [✅] Self-review performed
• [✅] Tests added/updated
• [✅] Documentation updated (if needed)