Add qlty code quality configuration and GitHub Actions workflow

[mmeest]

Qlty Configuration (.qlty/qlty.toml)

• Erlang-specific excludes - .beam, .plt, ebin/, _build/, etc.
• Configured smells detection - code complexity, duplication, function parameters
• Added test patterns - Common Test suites (*_SUITE.erl)

GitHub Actions Workflow (.github/workflows/qlty.yml)

• Automated quality checks on push and pull requests to master branch
• Uses latest actions/checkout@v5
• Installs qlty CLI automatically
• Runs code quality analysis

Supported Quality Tools

• Docker: dockerfmt, hadolint
• Documentation: markdownlint
• Security: osv-scanner, trivy, trufflehog
• Shell scripts: shellcheck, shfmt
• YAML: yamllint (GitHub Actions workflows)

Testing

• Qlty configuration validated locally
• GitHub Actions workflow syntax verified
• All plugins tested and working

Related

• Addresses code quality requirements
• Enables automated quality monitoring
• Integrates with existing CI/CD pipeline