设置页AI Tab:网关设置入库、保险丝改维度与grok工具注入

internal/api/aigateway.go

@@ -587,8 +587,13 @@ func (h *aiGatewayHandler) responsesPassthrough(c *gin.Context, raw []byte, req
 		return
 	}
 	logRespCompat(req.Model, compat)
+	web, x := h.gw.GrokSearch()
+	if injectedBody, injected := service.RespInjectGrokTools(body, req.Model, web, x); len(injected) > 0 {
+		body = injectedBody
+		log.Printf("responses 直通(model=%s): 默认注入 %s", req.Model, strings.Join(injected, ", "))
+	}
 	if req.Stream {
-		if len(body) > service.RespStreamUpgradeLimit {
+		if on, kb := h.gw.StreamGuard(); on && service.RespGuardBytes(body) > kb*1024 {
 			h.responsesStreamUpgrade(c, body, req, compat)
 			return
 		}
@@ -630,9 +635,9 @@ func logRespCompat(model string, compat service.RespCompat) {
 	log.Printf("responses 直通(model=%s): %s", model, strings.Join(parts, "; "))
 }
 
-// responsesStreamUpgrade 流式升级回退:上游对超大流式请求会在推理途中掐断
-// (实测 >~82KB,见 RespStreamUpgradeLimit),超限时改调非流式上游拿完整响应,
-// 本地合成最小 SSE 事件序列回给客户端;丢失增量输出,换会话不中断。
+// responsesStreamUpgrade 流式升级回退:instructions+tools 合计超过保险丝阈值
+// (设置页 AI Tab 配置,默认开 60KB;上游对 >≈64.5KB 会静默断流)时改调非流式
+// 上游拿完整响应,本地合成最小 SSE 事件序列回给客户端;丢失增量输出,换会话不中断。
 func (h *aiGatewayHandler) responsesStreamUpgrade(c *gin.Context, body []byte, req aiwire.RespRequest, compat service.RespCompat) {
 	start := time.Now()
 	nsBody, err := service.RespDisableStream(body)
@@ -640,7 +645,8 @@ func (h *aiGatewayHandler) responsesStreamUpgrade(c *gin.Context, body []byte, r
 		aiError(c, http.StatusBadRequest, "invalid_request_error", err.Error())
 		return
 	}
-	log.Printf("responses 直通(model=%s): 请求体 %dKB 超流式安全上限,改走非流式合成 SSE", req.Model, len(body)/1024)
+	log.Printf("responses 直通(model=%s): instructions+tools %dKB 超保险丝阈值,改走非流式合成 SSE",
+		req.Model, service.RespGuardBytes(body)/1024)
 	payload, meta, err := h.gw.RespPassthrough(c.Request.Context(), nsBody, req.Model, keyGroup(c))
 	entry := h.logEntry(c, "responses", req.Model, true, meta, start)
 	if err != nil {