feat(task-group): introduce TaskGroupCoordinator for coordinated task execution (#721)

* feat(task): add task hook,batch task
refactor(move): move use CopyTask

* Update internal/task/batch_task/refresh.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Signed-off-by: Seven <53081179+Seven66677731@users.noreply.github.com>

* fix: upload task allFinish judge

* Update internal/task/batch_task/refresh.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Signed-off-by: Seven <53081179+Seven66677731@users.noreply.github.com>

* feat: enhance concurrency safety

* 优化代码

* 解压缩

* 修复死锁

* refactor(move): move as task

* 重构，优化

* .

* 优化，修复bug

* .

* 修复bug

* feat: add task retry judge

* 代理Task.SetState函数来判断Task的生命周期

* chore: use OnSucceeded、OnFailed、OnBeforeRetry functions

* 优化

* 优化，去除重复代码

* .

* 优化

* .

* webdav

* Revert "fix(fs):After the file is copied or moved, flush the cache of the directory that was copied or moved to."

This reverts commit 5f03edd683.

---------

Signed-off-by: Seven <53081179+Seven66677731@users.noreply.github.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: j2rong4cn <j2rong@qq.com>

internal/net/serve.go

@@ -6,10 +6,8 @@ import (
 	"crypto/tls"
 	"fmt"
 	"io"
-	"mime"
 	"mime/multipart"
 	"net/http"
-	"path/filepath"
 	"strconv"
 	"strings"
 	"sync"
@@ -74,11 +72,7 @@ func ServeHTTP(w http.ResponseWriter, r *http.Request, name string, modTime time
 	contentTypes, haveType := w.Header()["Content-Type"]
 	var contentType string
 	if !haveType {
-		contentType = mime.TypeByExtension(filepath.Ext(name))
-		if contentType == "" {
-			// most modern application can handle the default contentType
-			contentType = "application/octet-stream"
-		}
+		contentType = utils.GetMimeType(name)
 		w.Header().Set("Content-Type", contentType)
 	} else if len(contentTypes) > 0 {
 		contentType = contentTypes[0]