fix: use OpenClaw plugin SDK format with api.registerTool()

- Change index.js to export init() function that receives api
- Use api.registerTool() to dynamically register tools
- Remove tools array from manifest (not needed for dynamic registration)
- Add passMgrPath to configSchema

index.js

@@ -1,4 +1,7 @@
-const { pcexec } = require('./pcexec/dist/index.js');
+// PaddedCell Plugin for OpenClaw
+// Registers pcexec and safe_restart tools
+
+const { pcexec, pcexecSync } = require('./pcexec/dist/index.js');
 const { 
   safeRestart, 
   createSafeRestartTool, 
@@ -8,12 +11,66 @@ const {
   SlashCommandHandler
 } = require('./safe-restart/dist/index.js');
 
-module.exports = {
-  pcexec,
-  safeRestart,
-  createSafeRestartTool,
-  StatusManager,
-  createApiServer,
-  startApiServer,
-  SlashCommandHandler,
-};
+// Plugin initialization function
+function init(api, config) {
+  const logger = api.logger || { info: console.log, error: console.error };
+  
+  logger.info('PaddedCell plugin initializing...');
+
+  // Register pcexec tool
+  api.registerTool({
+    name: 'pcexec',
+    description: 'Safe exec with password sanitization',
+    parameters: {
+      type: 'object',
+      properties: {
+        command: { type: 'string', description: 'Command to execute' },
+        cwd: { type: 'string', description: 'Working directory' },
+        timeout: { type: 'number', description: 'Timeout in milliseconds' },
+      },
+      required: ['command'],
+    },
+    async handler(params) {
+      return await pcexec(params.command, {
+        cwd: params.cwd,
+        timeout: params.timeout,
+      });
+    },
+  });
+
+  // Register safe_restart tool
+  api.registerTool({
+    name: 'safe_restart',
+    description: 'Safe coordinated restart of OpenClaw gateway',
+    parameters: {
+      type: 'object',
+      properties: {
+        rollback: { type: 'string', description: 'Rollback script path' },
+        log: { type: 'string', description: 'Log file path' },
+      },
+    },
+    async handler(params, context) {
+      return await safeRestart({
+        agentId: context.agentId,
+        sessionKey: context.sessionKey,
+        rollback: params.rollback,
+        log: params.log,
+      });
+    },
+  });
+
+  logger.info('PaddedCell plugin initialized');
+}
+
+// Export for OpenClaw
+module.exports = { init };
+
+// Also export individual modules for direct use
+module.exports.pcexec = pcexec;
+module.exports.pcexecSync = pcexecSync;
+module.exports.safeRestart = safeRestart;
+module.exports.createSafeRestartTool = createSafeRestartTool;
+module.exports.StatusManager = StatusManager;
+module.exports.createApiServer = createApiServer;
+module.exports.startApiServer = startApiServer;
+module.exports.SlashCommandHandler = SlashCommandHandler;