fix: 移除特定system以适配新版cc客户端缓存失效的bug

backend/internal/pkg/antigravity/request_transformer.go

@@ -271,6 +271,21 @@ func filterOpenCodePrompt(text string) string {
 	return ""
 }
 
+// systemBlockFilterPrefixes 需要从 system 中过滤的文本前缀列表
+var systemBlockFilterPrefixes = []string{
+	"x-anthropic-billing-header",
+}
+
+// filterSystemBlockByPrefix 如果文本匹配过滤前缀，返回空字符串
+func filterSystemBlockByPrefix(text string) string {
+	for _, prefix := range systemBlockFilterPrefixes {
+		if strings.HasPrefix(text, prefix) {
+			return ""
+		}
+	}
+	return text
+}
+
 // buildSystemInstruction 构建 systemInstruction（与 Antigravity-Manager 保持一致）
 func buildSystemInstruction(system json.RawMessage, modelName string, opts TransformOptions, tools []ClaudeTool) *GeminiContent {
 	var parts []GeminiPart
@@ -287,8 +302,8 @@ func buildSystemInstruction(system json.RawMessage, modelName string, opts Trans
 				if strings.Contains(sysStr, "You are Antigravity") {
 					userHasAntigravityIdentity = true
 				}
-				// 过滤 OpenCode 默认提示词
-				filtered := filterOpenCodePrompt(sysStr)
+				// 过滤 OpenCode 默认提示词和黑名单前缀
+				filtered := filterSystemBlockByPrefix(filterOpenCodePrompt(sysStr))
 				if filtered != "" {
 					userSystemParts = append(userSystemParts, GeminiPart{Text: filtered})
 				}
@@ -302,8 +317,8 @@ func buildSystemInstruction(system json.RawMessage, modelName string, opts Trans
 						if strings.Contains(block.Text, "You are Antigravity") {
 							userHasAntigravityIdentity = true
 						}
-						// 过滤 OpenCode 默认提示词
-						filtered := filterOpenCodePrompt(block.Text)
+						// 过滤 OpenCode 默认提示词和黑名单前缀
+						filtered := filterSystemBlockByPrefix(filterOpenCodePrompt(block.Text))
 						if filtered != "" {
 							userSystemParts = append(userSystemParts, GeminiPart{Text: filtered})
 						}

backend/internal/service/antigravity_gateway_service.go

@@ -48,10 +48,6 @@ const (
 	googleRPCReasonModelCapacityExhausted = "MODEL_CAPACITY_EXHAUSTED"
 	googleRPCReasonRateLimitExceeded      = "RATE_LIMIT_EXCEEDED"
 
-	// 单账号 503 退避重试：预检查中等待模型限流过期的最大时间
-	// 超过此值的限流将直接切换账号（避免请求等待过久）
-	antigravitySingleAccountMaxWait = 30 * time.Second
-
 	// 单账号 503 退避重试：Service 层原地重试的最大次数
 	// 在 handleSmartRetry 中，对于 shouldRateLimitModel（长延迟 ≥ 7s）的情况，
 	// 多账号模式下会设限流+切换账号；但单账号模式下改为原地等待+重试。

backend/internal/service/antigravity_single_account_retry_test.go

@@ -57,8 +57,6 @@ func TestSingleAccountRetryConstants(t *testing.T) {
 		"单次最大等待 15s")
 	require.Equal(t, 30*time.Second, antigravitySingleAccountSmartRetryTotalMaxWait,
 		"总累计等待不超过 30s")
-	require.Equal(t, 30*time.Second, antigravitySingleAccountMaxWait,
-		"预检查最大等待 30s")
 }
 
 // ---------------------------------------------------------------------------

backend/internal/service/gateway_service.go

@@ -243,6 +243,12 @@ var (
 	}
 )
 
+// systemBlockFilterPrefixes 需要从 system 中过滤的文本前缀列表
+// OAuth/SetupToken 账号转发时，匹配这些前缀的 system 元素会被移除
+var systemBlockFilterPrefixes = []string{
+	"x-anthropic-billing-header",
+}
+
 // ErrClaudeCodeOnly 表示分组仅允许 Claude Code 客户端访问
 var ErrClaudeCodeOnly = errors.New("this group only allows Claude Code clients")
 
@@ -2684,6 +2690,60 @@ func hasClaudeCodePrefix(text string) bool {
 	return false
 }
 
+// matchesFilterPrefix 检查文本是否匹配任一过滤前缀
+func matchesFilterPrefix(text string) bool {
+	for _, prefix := range systemBlockFilterPrefixes {
+		if strings.HasPrefix(text, prefix) {
+			return true
+		}
+	}
+	return false
+}
+
+// filterSystemBlocksByPrefix 从 body 的 system 中移除文本匹配 systemBlockFilterPrefixes 前缀的元素
+// 直接从 body 解析 system，不依赖外部传入的 parsed.System（因为前置步骤可能已修改 body 中的 system）
+func filterSystemBlocksByPrefix(body []byte) []byte {
+	sys := gjson.GetBytes(body, "system")
+	if !sys.Exists() {
+		return body
+	}
+
+	switch {
+	case sys.Type == gjson.String:
+		if matchesFilterPrefix(sys.Str) {
+			result, err := sjson.DeleteBytes(body, "system")
+			if err != nil {
+				return body
+			}
+			return result
+		}
+	case sys.IsArray():
+		var parsed []any
+		if err := json.Unmarshal([]byte(sys.Raw), &parsed); err != nil {
+			return body
+		}
+		filtered := make([]any, 0, len(parsed))
+		changed := false
+		for _, item := range parsed {
+			if m, ok := item.(map[string]any); ok {
+				if text, ok := m["text"].(string); ok && matchesFilterPrefix(text) {
+					changed = true
+					continue
+				}
+			}
+			filtered = append(filtered, item)
+		}
+		if changed {
+			result, err := sjson.SetBytes(body, "system", filtered)
+			if err != nil {
+				return body
+			}
+			return result
+		}
+	}
+	return body
+}
+
 // injectClaudeCodePrompt 在 system 开头注入 Claude Code 提示词
 // 处理 null、字符串、数组三种格式
 func injectClaudeCodePrompt(body []byte, system any) []byte {
@@ -2963,6 +3023,12 @@ func (s *GatewayService) Forward(ctx context.Context, c *gin.Context, account *A
 		body, reqModel = normalizeClaudeOAuthRequestBody(body, reqModel, normalizeOpts)
 	}
 
+	// OAuth/SetupToken 账号：移除黑名单前缀匹配的 system 元素（如客户端注入的计费元数据）
+	// 放在 inject/normalize 之后，确保不会被覆盖
+	if account.IsOAuth() {
+		body = filterSystemBlocksByPrefix(body)
+	}
+
 	// 强制执行 cache_control 块数量限制（最多 4 个）
 	body = enforceCacheControlLimit(body)
 

frontend/package.json

@@ -17,7 +17,7 @@
   "dependencies": {
     "@lobehub/icons": "^4.0.2",
     "@vueuse/core": "^10.7.0",
-    "axios": "^1.6.2",
+    "axios": "^1.13.5",
     "chart.js": "^4.4.1",
     "dompurify": "^3.3.1",
     "driver.js": "^1.4.0",

frontend/pnpm-lock.yaml

@@ -15,8 +15,8 @@ importers:
         specifier: ^10.7.0
         version: 10.11.1(vue@3.5.26(typescript@5.6.3))
       axios:
-        specifier: ^1.6.2
-        version: 1.13.2
+        specifier: ^1.13.5
+        version: 1.13.5
       chart.js:
         specifier: ^4.4.1
         version: 4.5.1
@@ -1257,56 +1257,67 @@ packages:
     resolution: {integrity: sha512-EHMUcDwhtdRGlXZsGSIuXSYwD5kOT9NVnx9sqzYiwAc91wfYOE1g1djOEDseZJKKqtHAHGwnGPQu3kytmfaXLQ==}
     cpu: [arm]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-arm-musleabihf@4.54.0':
     resolution: {integrity: sha512-+pBrqEjaakN2ySv5RVrj/qLytYhPKEUwk+e3SFU5jTLHIcAtqh2rLrd/OkbNuHJpsBgxsD8ccJt5ga/SeG0JmA==}
     cpu: [arm]
     os: [linux]
+    libc: [musl]
 
   '@rollup/rollup-linux-arm64-gnu@4.54.0':
     resolution: {integrity: sha512-NSqc7rE9wuUaRBsBp5ckQ5CVz5aIRKCwsoa6WMF7G01sX3/qHUw/z4pv+D+ahL1EIKy6Enpcnz1RY8pf7bjwng==}
     cpu: [arm64]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-arm64-musl@4.54.0':
     resolution: {integrity: sha512-gr5vDbg3Bakga5kbdpqx81m2n9IX8M6gIMlQQIXiLTNeQW6CucvuInJ91EuCJ/JYvc+rcLLsDFcfAD1K7fMofg==}
     cpu: [arm64]
     os: [linux]
+    libc: [musl]
 
   '@rollup/rollup-linux-loong64-gnu@4.54.0':
     resolution: {integrity: sha512-gsrtB1NA3ZYj2vq0Rzkylo9ylCtW/PhpLEivlgWe0bpgtX5+9j9EZa0wtZiCjgu6zmSeZWyI/e2YRX1URozpIw==}
     cpu: [loong64]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-ppc64-gnu@4.54.0':
     resolution: {integrity: sha512-y3qNOfTBStmFNq+t4s7Tmc9hW2ENtPg8FeUD/VShI7rKxNW7O4fFeaYbMsd3tpFlIg1Q8IapFgy7Q9i2BqeBvA==}
     cpu: [ppc64]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-riscv64-gnu@4.54.0':
     resolution: {integrity: sha512-89sepv7h2lIVPsFma8iwmccN7Yjjtgz0Rj/Ou6fEqg3HDhpCa+Et+YSufy27i6b0Wav69Qv4WBNl3Rs6pwhebQ==}
     cpu: [riscv64]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-riscv64-musl@4.54.0':
     resolution: {integrity: sha512-ZcU77ieh0M2Q8Ur7D5X7KvK+UxbXeDHwiOt/CPSBTI1fBmeDMivW0dPkdqkT4rOgDjrDDBUed9x4EgraIKoR2A==}
     cpu: [riscv64]
     os: [linux]
+    libc: [musl]
 
   '@rollup/rollup-linux-s390x-gnu@4.54.0':
     resolution: {integrity: sha512-2AdWy5RdDF5+4YfG/YesGDDtbyJlC9LHmL6rZw6FurBJ5n4vFGupsOBGfwMRjBYH7qRQowT8D/U4LoSvVwOhSQ==}
     cpu: [s390x]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-x64-gnu@4.54.0':
     resolution: {integrity: sha512-WGt5J8Ij/rvyqpFexxk3ffKqqbLf9AqrTBbWDk7ApGUzaIs6V+s2s84kAxklFwmMF/vBNGrVdYgbblCOFFezMQ==}
     cpu: [x64]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-x64-musl@4.54.0':
     resolution: {integrity: sha512-JzQmb38ATzHjxlPHuTH6tE7ojnMKM2kYNzt44LO/jJi8BpceEC8QuXYA908n8r3CNuG/B3BV8VR3Hi1rYtmPiw==}
     cpu: [x64]
     os: [linux]
+    libc: [musl]
 
   '@rollup/rollup-openharmony-arm64@4.54.0':
     resolution: {integrity: sha512-huT3fd0iC7jigGh7n3q/+lfPcXxBi+om/Rs3yiFxjvSxbSB6aohDFXbWvlspaqjeOh+hx7DDHS+5Es5qRkWkZg==}
@@ -1805,8 +1816,8 @@ packages:
     peerDependencies:
       postcss: ^8.1.0
 
-  axios@1.13.2:
-    resolution: {integrity: sha512-VPk9ebNqPcy5lRGuSlKx752IlDatOjT9paPlm8A7yOuW2Fbvp4X3JznJtT4f0GzGLLiWE9W8onz51SqLYwzGaA==}
+  axios@1.13.5:
+    resolution: {integrity: sha512-cz4ur7Vb0xS4/KUN0tPWe44eqxrIu31me+fbang3ijiNscE129POzipJJA6zniq2C/Z6sJCjMimjS8Lc/GAs8Q==}
 
   babel-plugin-macros@3.1.0:
     resolution: {integrity: sha512-Cg7TFGpIr01vOQNODXOOaGz2NpCU5gl8x1qJFbb6hbZxR7XrcE2vtbAsTAbJ7/xwJtUuJEw8K8Zr/AE0LHlesg==}
@@ -6387,7 +6398,7 @@ snapshots:
       postcss: 8.5.6
       postcss-value-parser: 4.2.0
 
-  axios@1.13.2:
+  axios@1.13.5:
     dependencies:
       follow-redirects: 1.15.11
       form-data: 4.0.5