diff --git a/backend/internal/pkg/antigravity/client.go b/backend/internal/pkg/antigravity/client.go
index 880db797..fdd7fea1 100644
--- a/backend/internal/pkg/antigravity/client.go
+++ b/backend/internal/pkg/antigravity/client.go
@@ -767,7 +767,7 @@ func (r *SetUserSettingsResponse) IsSuccess() bool {
 		return false
 	}
 	// userSettings 为 nil 或空 map 均视为成功
-	if r.UserSettings == nil || len(r.UserSettings) == 0 {
+	if len(r.UserSettings) == 0 {
 		return true
 	}
 	// 如果包含 telemetryEnabled 字段，说明未成功清除
diff --git a/backend/internal/service/admin_service.go b/backend/internal/service/admin_service.go
index 3ac6a144..10f71bbc 100644
--- a/backend/internal/service/admin_service.go
+++ b/backend/internal/service/admin_service.go
@@ -2740,4 +2740,3 @@ func (s *adminServiceImpl) ForceAntigravityPrivacy(ctx context.Context, account
 	applyAntigravityPrivacyMode(account, mode)
 	return mode
 }
-
diff --git a/backend/internal/service/antigravity_oauth_service.go b/backend/internal/service/antigravity_oauth_service.go
index e0caae4c..a300d898 100644
--- a/backend/internal/service/antigravity_oauth_service.go
+++ b/backend/internal/service/antigravity_oauth_service.go
@@ -322,7 +322,7 @@ func (s *AntigravityOAuthService) RefreshAccountToken(ctx context.Context, accou
 // loadCodeAssistResult 封装 loadProjectIDWithRetry 的返回结果，
 // 同时携带从 LoadCodeAssist 响应中提取的 plan_type 信息。
 type loadCodeAssistResult struct {
-	ProjectID string
+	ProjectID    string
 	Subscription *AntigravitySubscriptionResult
 }
 
diff --git a/backend/internal/service/antigravity_privacy_service_test.go b/backend/internal/service/antigravity_privacy_service_test.go
index 11f05ab9..893500a6 100644
--- a/backend/internal/service/antigravity_privacy_service_test.go
+++ b/backend/internal/service/antigravity_privacy_service_test.go
@@ -2,7 +2,33 @@
 
 package service
 
-import "testing"
+import (
+	"testing"
+)
+
+func applyAntigravitySubscriptionResult(account *Account, result AntigravitySubscriptionResult) (map[string]any, map[string]any) {
+	credentials := make(map[string]any)
+	for k, v := range account.Credentials {
+		credentials[k] = v
+	}
+	credentials["plan_type"] = result.PlanType
+
+	extra := make(map[string]any)
+	for k, v := range account.Extra {
+		extra[k] = v
+	}
+	if result.SubscriptionStatus != "" {
+		extra["subscription_status"] = result.SubscriptionStatus
+	} else {
+		delete(extra, "subscription_status")
+	}
+	if result.SubscriptionError != "" {
+		extra["subscription_error"] = result.SubscriptionError
+	} else {
+		delete(extra, "subscription_error")
+	}
+	return credentials, extra
+}
 
 func TestApplyAntigravityPrivacyMode_SetsInMemoryExtra(t *testing.T) {
 	account := &Account{}
diff --git a/backend/internal/service/antigravity_subscription_service.go b/backend/internal/service/antigravity_subscription_service.go
index 46904427..04559be8 100644
--- a/backend/internal/service/antigravity_subscription_service.go
+++ b/backend/internal/service/antigravity_subscription_service.go
@@ -36,27 +36,3 @@ func NormalizeAntigravitySubscription(resp *antigravity.LoadCodeAssistResponse)
 		PlanType: antigravity.TierIDToPlanType(tierID),
 	}
 }
-
-func applyAntigravitySubscriptionResult(account *Account, result AntigravitySubscriptionResult) (map[string]any, map[string]any) {
-	credentials := make(map[string]any)
-	for k, v := range account.Credentials {
-		credentials[k] = v
-	}
-	credentials["plan_type"] = result.PlanType
-
-	extra := make(map[string]any)
-	for k, v := range account.Extra {
-		extra[k] = v
-	}
-	if result.SubscriptionStatus != "" {
-		extra["subscription_status"] = result.SubscriptionStatus
-	} else {
-		delete(extra, "subscription_status")
-	}
-	if result.SubscriptionError != "" {
-		extra["subscription_error"] = result.SubscriptionError
-	} else {
-		delete(extra, "subscription_error")
-	}
-	return credentials, extra
-}
diff --git a/backend/internal/service/token_refresh_service.go b/backend/internal/service/token_refresh_service.go
index f3d7ce58..ac14aa56 100644
--- a/backend/internal/service/token_refresh_service.go
+++ b/backend/internal/service/token_refresh_service.go
@@ -526,4 +526,3 @@ func (s *TokenRefreshService) ensureAntigravityPrivacy(ctx context.Context, acco
 		)
 	}
 }
-