feat(gateway): integrate OpenClaw as git submodule

- Add OpenClaw as git submodule at ./openclaw/
- Update GatewayManager to start gateway from submodule path
- Support both production (dist) and development (pnpm dev) modes
- Add IPC handler for OpenClaw status check
- Update Setup wizard to check real OpenClaw submodule status
- Configure electron-builder to include submodule in packaged app
- Add npm scripts for submodule management:
  - postinstall: auto-init submodule
  - openclaw:init: initialize and install dependencies
  - openclaw:install: install dependencies only
  - openclaw:build: build OpenClaw
  - openclaw:update: update to latest version

electron/main/ipc-handlers.ts

@@ -19,6 +19,7 @@ import {
   isEncryptionAvailable,
   type ProviderConfig,
 } from '../utils/secure-storage';
+import { getOpenClawStatus } from '../utils/paths';
 
 /**
  * Register all IPC handlers
@@ -30,6 +31,9 @@ export function registerIpcHandlers(
   // Gateway handlers
   registerGatewayHandlers(gatewayManager, mainWindow);
   
+  // OpenClaw handlers
+  registerOpenClawHandlers();
+  
   // Provider handlers
   registerProviderHandlers();
   
@@ -154,6 +158,23 @@ function registerGatewayHandlers(
   });
 }
 
+/**
+ * OpenClaw-related IPC handlers
+ * For checking submodule status
+ */
+function registerOpenClawHandlers(): void {
+  // Get OpenClaw submodule status
+  ipcMain.handle('openclaw:status', () => {
+    return getOpenClawStatus();
+  });
+  
+  // Check if OpenClaw is ready (submodule present and dependencies installed)
+  ipcMain.handle('openclaw:isReady', () => {
+    const status = getOpenClawStatus();
+    return status.submoduleExists && status.isInstalled;
+  });
+}
+
 /**
  * Provider-related IPC handlers
  */