Use native Chrome for Reddit login handoff

src/web/server.ts

@@ -18,6 +18,7 @@ import type { OpenRouterClient } from '../ai/openrouter.js';
 import type { StrategySelector } from '../services/strategy-selector.js';
 import type { BrowserClient } from '../browser/client.js';
 import type { AccountAuthContext } from '../services/account-auth-context.js';
+import type { NativeLoginHandoff } from '../services/native-login-handoff.js';
 import { ActivityLog } from './activity-log.js';
 import { LogBroadcaster } from './log-broadcaster.js';
 import type { WebContext } from './context.js';
@@ -180,6 +181,10 @@ export class WebServer {
     this.services.accountAuth = accountAuth;
   }
 
+  setNativeLoginHandoff(nativeLogin: NativeLoginHandoff): void {
+    this.services.nativeLogin = nativeLogin;
+  }
+
   logActivity(type: ActivityItem['type'], message: string, recipient?: string, imageUrl?: string): void {
     this.activity.push(type, message, recipient, imageUrl);
   }