Migrate repository with CI/CD and testing

[hyperpolymath]

• Add ci-scripts/ with universal language detection and CI scripts:

  • detect.sh: Auto-detects languages, package managers, test frameworks
  • setup.sh: Installs dependencies based on detected configuration
  • test.sh: Runs tests with coverage support
  • lint.sh: Runs linters with auto-fix capability
  • build.sh: Builds projects in release/debug mode
  • sync-mirror.sh: Event-driven repository mirroring
  • verify-mirror.sh: Verifies sync between remotes

• Add GitHub Actions workflow (.github/workflows/ci.yml):

  • Automatic language detection
  • Matrix testing across OS/versions
  • Dependency caching
  • Build artifact uploads
  • Docker image builds
  • Event-driven GitLab mirror sync

• Add GitLab CI configuration (.gitlab-ci.yml):

  • Language-specific job templates
  • Parallel test execution
  • Coverage reporting
  • Container Registry integration

• Add test scaffolding (tests/):

  • BATS tests for CI scripts
  • Test runner script

• Add documentation:

  • TODO.md: Comprehensive project improvement list
  • SECRETS.md: Secrets configuration guide
  • ROADMAP.adoc: Route to MVP v1.0 deployment

• Update existing files:

  • README.md: Complete documentation with badges
  • dependabot.yml: Full multi-ecosystem configuration
  • codeql.yml: Enhanced security scanning