Add support for semantic version tags with pre-release identifiers
(e.g., 1.0.0-alpha.1, 1.0.0-beta.2) in the GitHub Actions release
workflow.
The workflow now triggers on both stable versions (X.Y.Z) and
pre-release versions (X.Y.Z-*).
Co-Authored-By: Claude <noreply@anthropic.com>
Implements automated release workflow per design document.
- Triggers on semantic version tags (e.g., 1.2.3)
- Validates version consistency across package.json, manifest.json, and git tag
- Runs test suite (blocks release if tests fail)
- Builds plugin using production build process
- Verifies build artifacts exist (main.js, manifest.json, styles.css)
- Creates draft GitHub release with required files
Workflow uses single-job architecture for simplicity and runs on Node.js 18 with npm caching for performance.
