fix: 修复请求头转发与任务状态流转问题

移除 util.ForwardHeaders，改为从原始请求精确提取 Authorization 或全部请求头；
任务创建时直接设为 Running 状态，避免二次更新与查询；
模型调用使用独立超时上下文，防止外层取消影响回调；
增加 OSS 上传耗时日志，调整数据库连接池参数。

service/gateway/gateway_http_service.go

@@ -7,7 +7,6 @@ import (
 	"errors"
 	"fmt"
 	"mime/multipart"
-	"model-gateway/common/util"
 	"model-gateway/model/entity"
 	"time"
 
@@ -43,16 +42,25 @@ func UploadByTask(ctx context.Context, data []byte, fileExt string) (oss *Upload
 	if err != nil {
 		return nil, err
 	}
-	if _, err := part.Write(data); err != nil {
+	if _, err = part.Write(data); err != nil {
 		return nil, err
 	}
-	contentType := writer.FormDataContentType()
+	//contentType := writer.FormDataContentType()
 	if err = writer.Close(); err != nil {
 		return nil, err
 	}
 
-	headers := util.ForwardHeaders(ctx)
-	headers["Content-Type"] = contentType
+	//headers := util.ForwardHeaders(ctx)
+	//headers["Content-Type"] = contentType
+
+	headers := make(map[string]string)
+	headers["Content-Type"] = writer.FormDataContentType()
+	if r := g.RequestFromCtx(ctx); r != nil {
+		if auth := r.Header.Get("Authorization"); auth != "" {
+			headers["Authorization"] = auth
+		}
+	}
+
 	fullURL := "oss/file/uploadFile"
 	g.Log().Infof(ctx, "[OSS] upload start url=%s filename=%s size=%d", fullURL, filename, len(data))
 
@@ -78,15 +86,25 @@ type CallbackPayload struct {
 
 // TriggerCallback 任务的回调
 func TriggerCallback(ctx context.Context, t *entity.ModelGatewayTask) {
-	headers := util.ForwardHeaders(ctx)
+	//headers := util.ForwardHeaders(ctx)
+	headers := make(map[string]string)
+	if r := g.RequestFromCtx(ctx); r != nil {
+		for k, v := range r.Request.Header {
+			if len(v) > 0 {
+				headers[k] = v[0]
+			}
+		}
+	}
 	var resp struct{}
 	payload := CallbackPayload{
 		TaskId:   t.TaskID,
 		State:    t.State,
-		OssFile:  t.ResultFile.OssFile,
-		FileType: t.ResultFile.FileType,
 		ErrorMsg: t.ErrorMsg,
 	}
+	if !g.IsEmpty(t.ResultFile) {
+		payload.OssFile = t.ResultFile.OssFile
+		payload.FileType = t.ResultFile.FileType
+	}
 	jsonData, err := json.Marshal(payload)
 	if err != nil {
 		g.Log().Warningf(ctx, "[回调] JSON序列化失败 taskId=%s 错误=%v", t.TaskID, err)
@@ -112,7 +130,15 @@ type PromptsCallbackPayload struct {
 // TriggerPromptsCallback 任务成功后的提示词回调
 func TriggerPromptsCallback(ctx context.Context, t *entity.ModelGatewayTask, epicycleId int64) {
 	callbackURL := "prompts-core/session/callback"
-	headers := util.ForwardHeaders(ctx)
+	//headers := util.ForwardHeaders(ctx)
+	headers := make(map[string]string)
+	if r := g.RequestFromCtx(ctx); r != nil {
+		for k, v := range r.Request.Header {
+			if len(v) > 0 {
+				headers[k] = v[0]
+			}
+		}
+	}
 	var resp struct{}
 	payload := PromptsCallbackPayload{
 		EpicycleId: epicycleId,
@@ -136,7 +162,15 @@ func TriggerPromptsCallback(ctx context.Context, t *entity.ModelGatewayTask, epi
 
 // IsSuperAdmin 调用admin-go服务检查是否是超级管理员
 func IsSuperAdmin(ctx context.Context) (res bool, err error) {
-	headers := util.ForwardHeaders(ctx)
+	//headers := util.ForwardHeaders(ctx)
+	headers := make(map[string]string)
+	if r := g.RequestFromCtx(ctx); r != nil {
+		for k, v := range r.Request.Header {
+			if len(v) > 0 {
+				headers[k] = v[0]
+			}
+		}
+	}
 	var r = make(map[string]bool)
 	if err = commonHttp.Get(ctx, "admin-go/api/v1/system/user/checkIsSuperAdmin", headers, &r); err != nil {
 		return false, err