feat(core): move enable ai to feature flag (#8195)

packages/common/infra/src/modules/feature-flag/services/feature-flag.ts

@@ -1,10 +1,14 @@
+import { distinctUntilChanged, skip } from 'rxjs';
+
 import { OnEvent, Service } from '../../../framework';
+import { ApplicationStarted } from '../../lifecycle';
 import type { Workspace } from '../../workspace';
 import { WorkspaceInitialized } from '../../workspace/events';
 import { AFFINE_FLAGS } from '../constant';
 import { Flags, type FlagsExt } from '../entities/flags';
 
 @OnEvent(WorkspaceInitialized, e => e.setupBlocksuiteEditorFlags)
+@OnEvent(ApplicationStarted, e => e.setupRestartListener)
 export class FeatureFlagService extends Service {
   flags = this.framework.createEntity(Flags) as FlagsExt;
 
@@ -18,4 +22,13 @@ export class FeatureFlagService extends Service {
       }
     }
   }
+
+  setupRestartListener() {
+    this.flags.enable_ai.$.pipe(distinctUntilChanged(), skip(1)).subscribe(
+      () => {
+        // when enable_ai flag changes, reload the page.
+        window.location.reload();
+      }
+    );
+  }
 }