🚀 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>

bin/cli.js

@@ -0,0 +1,22 @@
+#!/usr/bin/env node
+const { spawnSync } = require("child_process");
+const { detectPython, detectPip } = require("./checkEnv");
+
+let pythonCmd = detectPython();
+if (!pythonCmd) {
+  console.error("❌ Python 3 is required but not found.");
+  process.exit(1);
+}
+
+const args = process.argv.slice(2);
+
+// Special case: update command
+if (args[0] === "update") {
+  require("./update");
+  process.exit(0);
+}
+
+// Forward everything to Python SuperClaude
+const result = spawnSync(pythonCmd, ["-m", "SuperClaude", ...args], { stdio: "inherit", shell: true });
+process.exit(result.status);
+