🚀 Prepare for dual PyPI/NPM release v4.0

- Fix version consistency (PyPI: 4.0.0, NPM: 4.0.3)
- Update license format to PEP 639 compliance
- Restore NPM package components (bin/ and package.json)
- Fix NPM package name to @superclaude-org/superclaude
- Add comprehensive RELEASE_INSTRUCTIONS.md
- Update .gitignore to include NPM files
- Ready for production release on both PyPI and NPM

Co-Authored-By: Claude <noreply@anthropic.com>

pyproject.toml

@@ -11,7 +11,7 @@ authors = [
 ]
 description = "SuperClaude Framework Management Hub - AI-enhanced development framework for Claude Code"
 readme = "README.md"
-license = {text = "MIT"}
+license = "MIT"
 requires-python = ">=3.8"
 classifiers = [
     "Development Status :: 4 - Beta",