feat: add npm package support with CLI entry point

.github/workflows/publish.yml

@@ -0,0 +1,26 @@
+name: Publish to npm
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          registry-url: 'https://registry.npmjs.org'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Publish to npm
+        run: npm publish
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

.npmignore

@@ -0,0 +1,21 @@
+# Exclude tests
+tests/
+
+# Exclude GitHub workflows
+.github/
+
+# Exclude documentation (except README)
+CLAUDE.md
+CHANGELOG.md
+CONTRIBUTING.md
+docs/
+
+# Exclude dev files
+.env*
+.claude/
+.vscode/
+.idea/
+
+# Exclude misc
+*.log
+.DS_Store

bin/cli.js

@@ -0,0 +1,109 @@
+#!/usr/bin/env node
+
+import { fileURLToPath } from 'url';
+import { dirname, join } from 'path';
+import { readFileSync } from 'fs';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+
+// Read package.json for version
+const packageJson = JSON.parse(
+  readFileSync(join(__dirname, '..', 'package.json'), 'utf-8')
+);
+
+const args = process.argv.slice(2);
+const command = args[0];
+
+function showHelp() {
+  console.log(`
+antigravity-proxy v${packageJson.version}
+
+Proxy server for using Antigravity's Claude models with Claude Code CLI.
+
+USAGE:
+  antigravity-proxy <command> [options]
+
+COMMANDS:
+  start                 Start the proxy server (default port: 8080)
+  accounts              Manage Google accounts (interactive)
+  accounts add          Add a new Google account via OAuth
+  accounts list         List all configured accounts
+  accounts remove       Remove accounts interactively
+  accounts verify       Verify account tokens are valid
+  accounts clear        Remove all accounts
+
+OPTIONS:
+  --help, -h            Show this help message
+  --version, -v         Show version number
+
+ENVIRONMENT:
+  PORT                  Server port (default: 8080)
+
+EXAMPLES:
+  antigravity-proxy start
+  PORT=3000 antigravity-proxy start
+  antigravity-proxy accounts add
+  antigravity-proxy accounts list
+
+CONFIGURATION:
+  Claude Code CLI (~/.claude/settings.json):
+    {
+      "env": {
+        "ANTHROPIC_BASE_URL": "http://localhost:8080"
+      }
+    }
+`);
+}
+
+function showVersion() {
+  console.log(packageJson.version);
+}
+
+async function main() {
+  // Handle flags
+  if (args.includes('--help') || args.includes('-h')) {
+    showHelp();
+    process.exit(0);
+  }
+
+  if (args.includes('--version') || args.includes('-v')) {
+    showVersion();
+    process.exit(0);
+  }
+
+  // Handle commands
+  switch (command) {
+    case 'start':
+    case undefined:
+      // Default to starting the server
+      await import('../src/index.js');
+      break;
+
+    case 'accounts': {
+      // Pass remaining args to accounts CLI
+      const subCommand = args[1] || 'add';
+      process.argv = ['node', 'accounts-cli.js', subCommand, ...args.slice(2)];
+      await import('../src/accounts-cli.js');
+      break;
+    }
+
+    case 'help':
+      showHelp();
+      break;
+
+    case 'version':
+      showVersion();
+      break;
+
+    default:
+      console.error(`Unknown command: ${command}`);
+      console.error('Run "antigravity-proxy --help" for usage information.');
+      process.exit(1);
+  }
+}
+
+main().catch((err) => {
+  console.error('Error:', err.message);
+  process.exit(1);
+});

package.json

@@ -4,6 +4,13 @@
   "description": "Proxy server to use Antigravity's Claude models with Claude Code CLI",
   "main": "src/index.js",
   "type": "module",
+  "bin": {
+    "antigravity-proxy": "bin/cli.js"
+  },
+  "files": [
+    "src",
+    "bin"
+  ],
   "scripts": {
     "start": "node src/index.js",
     "dev": "node --watch src/index.js",
@@ -27,8 +34,19 @@
     "proxy",
     "vertex-ai"
   ],
-  "author": "",
+  "author": "Badri Narayanan",
   "license": "MIT",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/badri-s2001/antigravity_claude_server.git"
+  },
+  "homepage": "https://github.com/badri-s2001/antigravity_claude_server#readme",
+  "bugs": {
+    "url": "https://github.com/badri-s2001/antigravity_claude_server/issues"
+  },
+  "engines": {
+    "node": ">=18.0.0"
+  },
   "dependencies": {
     "cors": "^2.8.5",
     "express": "^4.18.2"