🚀 Restore Go v2.0.0 implementation to main branch

[JohanDevl]

Pull Request Description

This PR restores the complete Go implementation to the main branch after the accidental revert of PR #45.

Problem solved: The main branch no longer contains the Go source code due to the revert of PR #45 "🚀 Release v2.0.0: Complete Go Implementation". Only the compiled executable remains.

Solution:

• Restore complete Go source code from develop branch
• Integrate important fixes from main branch
• Preserve recent improvements

Related Issues

Fixes the loss of Go source code following the revert of PR #45

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

Checklist

• I have read the CONTRIBUTING document
• My code follows the code style of this project
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• I have updated the documentation accordingly
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules

Testing Steps

1. Verify that all Go source files are present after merge
2. Validate that go.mod and go.sum are properly restored
3. Test compilation: go build ./cmd/export_trakt
4. Ensure tests pass: go test ./...
5. Validate that CI/CD works correctly

Additional Information

This restoration includes:

• Complete Go source code: cmd/, pkg/, internal/
• Module management: go.mod, go.sum
• Unit tests: All Go tests
• Modern architecture: Standard Go project structure
• Configuration: TOML config files
• CI/CD: GitHub Actions workflows for Go
• Docker: Go build support
• Recent fixes: Integration of security and config fixes

After this merge, main will become the primary branch containing the complete and functional Go v2.0.0 implementation.