From 56949a58bc04dcae83a8b5fc8b9bf11b9ecdb16d Mon Sep 17 00:00:00 2001
From: liuxiongfeng <liuxiongfeng@open-care.com>
Date: Tue, 3 Feb 2026 11:31:35 +0800
Subject: [PATCH] =?UTF-8?q?feat(antigravity):=20=E9=BB=98=E8=AE=A4?=
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将 GATEWAY_ANTIGRAVITY_429_SCOPE_LIMIT 的默认值从关闭改为开启。
当 Gemini 模型触发 429 限流时，只会限制对应的配额域（gemini_text），
而 Claude 和 gemini_image 仍可继续使用，提高账号利用率。
---
 backend/internal/service/antigravity_gateway_service.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/backend/internal/service/antigravity_gateway_service.go b/backend/internal/service/antigravity_gateway_service.go
index 3b847bcb..7fd8ef5d 100644
--- a/backend/internal/service/antigravity_gateway_service.go
+++ b/backend/internal/service/antigravity_gateway_service.go
@@ -1530,7 +1530,11 @@ func sleepAntigravityBackoffWithContext(ctx context.Context, attempt int) bool {
 
 func antigravityUseScopeRateLimit() bool {
 	v := strings.ToLower(strings.TrimSpace(os.Getenv(antigravityScopeRateLimitEnv)))
-	return v == "1" || v == "true" || v == "yes" || v == "on"
+	// 默认开启按配额域限流，只有明确设置为禁用值时才关闭
+	if v == "0" || v == "false" || v == "no" || v == "off" {
+		return false
+	}
+	return true
 }
 
 func (s *AntigravityGatewayService) handleUpstreamError(ctx context.Context, prefix string, account *Account, statusCode int, headers http.Header, body []byte, quotaScope AntigravityQuotaScope) {