Work on Milestone -7

[yhk1038]

…cs Verification, Release Automation

Phase 2: CI/CD Pipeline

• Add .github/workflows/ci.yml with Ruby matrix testing (3.0-3.3)
• Add RuboCop lint check with .rubocop.yml configuration
• Add Codecov integration for test coverage
• Add VSCode and JetBrains plugin build/verify steps
• Add docs verification CI step
• Create .github/workflows/release.yml for simultaneous deployment
• Remove legacy wasm-publish.yml (now integrated into release.yml)

Phase 3: Editor Plugin Integration

• Add editors/VERSION as single source of truth (v0.2.0)
• Create scripts/sync-editor-versions.sh for version synchronization
• Setup VSCode test framework with @vscode/test-electron + Mocha
• Write VSCode plugin tests (extension.test.ts)
• Setup JetBrains test framework with JUnit 5
• Write JetBrains plugin tests (TRubyFileTypeTest, TRubySettingsTest)
• Create editors/CONTRIBUTING.md with plugin contribution guide

Phase 4: Documentation Verification

• Create DocsExampleExtractor for Markdown code block extraction
• Create DocsExampleVerifier for compile/typecheck validation
• Create DocsBadgeGenerator for coverage badges (JSON, SVG)
• Create Rakefile with docs:verify, docs:badge, docs:list tasks

Phase 5: Release Automation

• Create COMMIT_CONVENTION.md with Conventional Commits guide
• Create .releaserc.yml for semantic-release configuration
• Configure automatic CHANGELOG generation