fix build

Author: krutsko

npm/.gitignore

@@ -2,9 +2,6 @@
 .npmrc
 tmp.json
 
-# Binary files (these are built during release)
-*/bin/
-
 # Temporary files
 *.tmp
 *.temp

npm/istio-mcp-server/bin/index.js

@@ -0,0 +1,46 @@
+#!/usr/bin/env node
+
+const childProcess = require('child_process');
+
+const BINARY_MAP = {
+  darwin_x64: {name: 'istio-mcp-server-darwin-amd64', suffix: ''},
+  darwin_arm64: {name: 'istio-mcp-server-darwin-arm64', suffix: ''},
+  linux_x64: {name: 'istio-mcp-server-linux-amd64', suffix: ''},
+  linux_arm64: {name: 'istio-mcp-server-linux-arm64', suffix: ''},
+  win32_x64: {name: 'istio-mcp-server-windows-amd64', suffix: '.exe'},
+  win32_arm64: {name: 'istio-mcp-server-windows-arm64', suffix: '.exe'},
+};
+
+// Resolving will fail if the optionalDependency was not installed or the platform/arch is not supported
+const resolveBinaryPath = () => {
+  try {
+    const binary = BINARY_MAP[`${process.platform}_${process.arch}`];
+    return require.resolve(`${binary.name}/bin/${binary.name}${binary.suffix}`);
+  } catch (e) {
+    throw new Error(`Could not resolve binary path for platform/arch: ${process.platform}/${process.arch}`);
+  }
+};
+
+const child = childProcess.spawn(resolveBinaryPath(), process.argv.slice(2), {
+  stdio: 'inherit',
+});
+
+const handleSignal = () => (signal) => {
+  console.log(`Received ${signal}, terminating child process...`);
+  if (child && !child.killed) {
+    child.kill(signal);
+  }
+};
+
+['SIGTERM', 'SIGINT', 'SIGHUP'].forEach((signal) => {
+  process.on(signal, handleSignal(signal));
+});
+
+child.on('close', (code, signal) => {
+  if (signal) {
+    console.log(`Child process terminated by signal: ${signal}`);
+    process.exit(128 + (signal === 'SIGTERM' ? 15 : signal === 'SIGINT' ? 2 : 1));
+  } else {
+    process.exit(code || 0);
+  }
+});