chore(release): prepare release v0.4.1

[vertefra]

Release v0.4.1

This PR prepares the release of version 0.4.1.

Changes Summary

• Version bump: Updated VERSION file to 0.4.1
• API Tool: Added new generic API tool for making HTTP requests to configured endpoints
  • Support for GET, POST, PUT, DELETE, PATCH methods
  • URL parameter substitution (e.g., /users/{user_id})
  • Query parameter support (e.g., ?limit=10&offset=0)
  • Request body support for POST/PUT/PATCH
  • Authentication hooks for adding auth headers without exposing secrets to agents
  • Per-endpoint validation functions for parameter safety
  • Validator registry with built-in validators
  • Hook registry for reusable authentication patterns
  • YAML configuration support
  • Dynamic endpoint discovery - agent automatically sees all available endpoints
  • Complete Pokemon API example demonstrating usage
• Linter fixes: Resolved linting errors in API tool

Testing

• ✅ All unit tests passing
• ✅ Linting checks passing (API tool issues resolved)
• ✅ Code coverage maintained
• ⚠️ Note: Pre-existing linting issues in postgres tool (not related to this release)

Files Changed

Includes API Tool implementation, merge of feat/api-tool branch, and version update.

Next Steps

After merge:

1. Tag the release: git tag v0.4.1
2. Push tag: git push origin v0.4.1
3. GitHub Actions will automatically create the release and generate changelog

[github-actions]

Version Check Results

✅ Version format is valid: 0.4.1

The VERSION file has been updated. Please ensure this matches the intended release version.