fix(core): allow any preview model in quota access check

packages/core/src/config/config.test.ts

@@ -2116,6 +2116,21 @@
       expect(config.getHasAccessToPreviewModel()).toBe(true);
     });
 
+    it('should update hasAccessToPreviewModel to true if quota includes Gemini 3.1 preview model', async () => {
+      mockCodeAssistServer.retrieveUserQuota.mockResolvedValue({
+        buckets: [
+          {
+            modelId: 'gemini-3.1-pro-preview',
+            remainingAmount: '100',
+            remainingFraction: 1.0,
+          },
+        ],
+      });
+
+      await config.refreshUserQuota();
+      expect(config.getHasAccessToPreviewModel()).toBe(true);
+    });
+
     it('should update hasAccessToPreviewModel to false if quota does not include preview model', async () => {
       mockCodeAssistServer.retrieveUserQuota.mockResolvedValue({
         buckets: [

packages/core/src/config/config.ts

@@ -1500,7 +1500,8 @@ export class Config {
       }
 
       const hasAccess =
-        quota.buckets?.some((b) => b.modelId === PREVIEW_GEMINI_MODEL) ?? false;
+        quota.buckets?.some((b) => b.modelId && isPreviewModel(b.modelId)) ??
+        false;
       this.setHasAccessToPreviewModel(hasAccess);
       return quota;
     } catch (e) {