fix: install script creates openclaw.plugin.json and index.js

- Add writeFileSync import
- Create manifest file during install if not exists
- Create index.js entry point during install if not exists

install.mjs

@@ -12,7 +12,7 @@
  */
 
 import { execSync } from 'child_process';
-import { existsSync, mkdirSync, copyFileSync, chmodSync } from 'fs';
+import { existsSync, mkdirSync, copyFileSync, writeFileSync, chmodSync } from 'fs';
 import { dirname, join, resolve } from 'path';
 import { fileURLToPath } from 'url';
 import { homedir, platform } from 'os';
@@ -317,6 +317,67 @@ async function installComponents(env) {
   // Create bin directory
   mkdirSync(binDir, { recursive: true });
 
+  // Create openclaw.plugin.json if not exists
+  const manifestPath = join(__dirname, 'openclaw.plugin.json');
+  if (!existsSync(manifestPath)) {
+    const manifest = {
+      id: PLUGIN_NAME,
+      name: 'PaddedCell',
+      version: '0.1.0',
+      description: 'Secure password management, safe execution, and coordinated restart',
+      entry: './index.js',
+      configSchema: {
+        type: 'object',
+        properties: {
+          enabled: { type: 'boolean', default: true }
+        }
+      },
+      tools: [
+        {
+          name: 'pcexec',
+          entry: './pcexec/dist/index.js',
+          description: 'Safe exec with password sanitization'
+        },
+        {
+          name: 'safe_restart',
+          entry: './safe-restart/dist/index.js',
+          description: 'Safe coordinated restart'
+        }
+      ]
+    };
+    writeFileSync(manifestPath, JSON.stringify(manifest, null, 2));
+    logSuccess('Created openclaw.plugin.json');
+  }
+
+  // Create index.js if not exists
+  const indexPath = join(__dirname, 'index.js');
+  if (!existsSync(indexPath)) {
+    const indexContent = `// PaddedCell Plugin Entry Point
+export const id = '${PLUGIN_NAME}';
+export const name = 'PaddedCell';
+export const version = '0.1.0';
+
+// Export tools (will be loaded by OpenClaw)
+export { pcexec } from './pcexec/dist/index.js';
+export { 
+  safeRestart, 
+  createSafeRestartTool, 
+  StatusManager, 
+  createApiServer,
+  startApiServer 
+} from './safe-restart/dist/index.js';
+
+// Default export
+export default {
+  id,
+  name,
+  version,
+};
+`;
+    writeFileSync(indexPath, indexContent);
+    logSuccess('Created index.js');
+  }
+
   // Install pass_mgr binary
   log('  Installing pass_mgr binary...', 'blue');
   const passMgrSource = join(__dirname, 'pass_mgr', 'dist', 'pass_mgr');