feat!: Refactor batch import task to transfer task

- Updated command usage in English and Simplified Chinese localization files to reflect changes in transfer command syntax.
- Removed batch import task implementation, replacing it with a new transfer task implementation.
- Introduced new task structure and progress tracking for file transfers.
- Updated task type enumeration to replace batch import with transfer.
- Added new fields in data structures to support transfer operations.
- Implemented file handling and progress reporting for the transfer task.

common/i18n/i18nk/keys.go

@@ -233,6 +233,7 @@ const (
 	BotMsgTelegraphInfoPromptSelectStorage                Key = "bot.msg.telegraph.info_prompt_select_storage"
 	BotMsgTelegraphInfoTitlePrefix                        Key = "bot.msg.telegraph.info_title_prefix"
 	BotMsgTransferErrorAddTaskFailed                      Key = "bot.msg.transfer.error_add_task_failed"
+	BotMsgTransferErrorBuildStorageSelectKeyboardFailed   Key = "bot.msg.transfer.error_build_storage_select_keyboard_failed"
 	BotMsgTransferErrorInvalidRegex                       Key = "bot.msg.transfer.error_invalid_regex"
 	BotMsgTransferErrorInvalidSource                      Key = "bot.msg.transfer.error_invalid_source"
 	BotMsgTransferErrorInvalidTarget                      Key = "bot.msg.transfer.error_invalid_target"
@@ -243,6 +244,7 @@ const (
 	BotMsgTransferErrorStorageNotReadable                 Key = "bot.msg.transfer.error_storage_not_readable"
 	BotMsgTransferErrorTargetNotFound                     Key = "bot.msg.transfer.error_target_not_found"
 	BotMsgTransferInfoFetchingFiles                       Key = "bot.msg.transfer.info_fetching_files"
+	BotMsgTransferInfoFilesSelectStorage                  Key = "bot.msg.transfer.info_files_select_storage"
 	BotMsgTransferInfoTaskAdded                           Key = "bot.msg.transfer.info_task_added"
 	BotMsgTransferStartStats                              Key = "bot.msg.transfer.start_stats"
 	BotMsgTransferUsage                                   Key = "bot.msg.transfer.usage"

common/i18n/locale/en.yaml

@@ -299,11 +299,11 @@ bot:
       error_download_failed: "yt-dlp download failed: {{.Error}}"
     transfer:
       usage: |
-        Usage: /transfer <source_storage>:/<source_path> <target_storage>:/<target_path> [filter]
+        Usage: /transfer <source_storage>:/<source_path> <target_path> [filter]
         Examples:
-        /transfer local1:/downloads tg1:/backup
-        /transfer alist1:/media/photos local1:/photos
-        /transfer webdav1:/files tg1:/archive ".*\.mp4$"
+        /transfer local1:/downloads /backup
+        /transfer alist1:/media/photos /photos
+        /transfer webdav1:/files /archive ".*\.mp4$"
       error_invalid_source: "Invalid source path format, should be: storage_name:/path"
       error_invalid_target: "Invalid target path format, should be: storage_name:/path"
       error_storage_not_found: "Storage '{{.StorageName}}' not found or access denied: {{.Error}}"
@@ -317,6 +317,8 @@ bot:
       error_add_task_failed: "Failed to add task: {{.Error}}"
       info_task_added: "Added {{.Count}} files to transfer queue\nTotal size: {{.SizeMB}} MB\nTask ID: {{.TaskID}}"
       start_stats: "Total files: {{.Count}}\nTotal size: {{.SizeMB}} MB"
+      info_files_select_storage: "Total {{.Count}} files ({{.SizeMB}} MB), please select target storage"
+      error_build_storage_select_keyboard_failed: "Failed to build storage selection keyboard: {{.Error}}"
     cancel:
       usage: "Usage: /cancel <task_id>"
       error_cancel_failed: "Failed to cancel task: {{.Error}}"
@@ -365,15 +367,15 @@ bot:
       ytdlp_done: "yt-dlp download completed and transferred ({{.Count}} files)\n"
       downloaded_prefix: "\nDownloaded: "
       current_speed_prefix: "\nCurrent speed: "
-      transfer_start_prefix: "Importing: "
-      transfer_progress_prefix: "Import progress: "
+      transfer_start_prefix: "Transfering: "
+      transfer_progress_prefix: "Transfer progress: "
       transfer_uploaded_prefix: "\nUploaded: "
       transfer_speed_prefix: "\nSpeed: "
       transfer_remaining_time_prefix: "\nRemaining time: "
       transfer_processing_prefix: "\nProcessing:\n"
       transfer_processing_more: "...and {{.Count}} more files\n"
-      transfer_failed_prefix: "Import failed\n"
-      transfer_success_prefix: "Import completed\n"
+      transfer_failed_prefix: "Transfer failed\n"
+      transfer_success_prefix: "Transfer completed\n"
       transfer_total_files_prefix: "\nTotal files: "
       transfer_total_size_prefix: "\nTotal size: "
       transfer_elapsed_time_prefix: "\nElapsed time: "

common/i18n/locale/zh-Hans.yaml

@@ -300,11 +300,11 @@ bot:
       error_download_failed: "yt-dlp 下载失败: {{.Error}}"
     transfer:
       usage: |
-        用法: /transfer <source_storage>:/<source_path> <target_storage>:/<target_path> [filter]
+        用法: /transfer <source_storage>:/<source_path> <target_path> [filter]
         示例:
-        /transfer local1:/downloads tg1:/backup
-        /transfer alist1:/media/photos local1:/photos
-        /transfer webdav1:/files tg1:/archive ".*\.mp4$"
+        /transfer local1:/downloads /backup
+        /transfer alist1:/media/photos /photos
+        /transfer webdav1:/files /archive ".*\.mp4$"
       error_invalid_source: "源路径格式无效，应为: storage_name:/path"
       error_invalid_target: "目标路径格式无效，应为: storage_name:/path"
       error_storage_not_found: "存储端 '{{.StorageName}}' 不存在或您无权访问: {{.Error}}"
@@ -318,6 +318,8 @@ bot:
       error_add_task_failed: "添加任务失败: {{.Error}}"
       info_task_added: "已添加 {{.Count}} 个文件到传输队列\n总大小: {{.SizeMB}} MB\n任务 ID: {{.TaskID}}"
       start_stats: "总文件数: {{.Count}}\n总大小: {{.SizeMB}} MB"
+      info_files_select_storage: "共 {{.Count}} 个文件 (总大小: {{.SizeMB}} MB)，请选择目标存储位置"
+      error_build_storage_select_keyboard_failed: "构建存储选择键盘失败: {{.Error}}"
     cancel:
       usage: "用法: /cancel <task_id>"
       error_cancel_failed: "取消任务失败: {{.Error}}"
@@ -366,15 +368,15 @@ bot:
       ytdlp_done: "yt-dlp 下载完成并已转存 ({{.Count}} 个文件)\n"
       downloaded_prefix: "\n已下载: "
       current_speed_prefix: "\n当前速度: "
-      transfer_start_prefix: "正在导入: "
-      transfer_progress_prefix: "导入进度: "
+      transfer_start_prefix: "正在转存: "
+      transfer_progress_prefix: "转存进度: "
       transfer_uploaded_prefix: "\n已上传: "
       transfer_speed_prefix: "\n速度: "
       transfer_remaining_time_prefix: "\n剩余时间: "
       transfer_processing_prefix: "\n正在处理:\n"
       transfer_processing_more: "...和其他 {{.Count}} 个文件\n"
-      transfer_failed_prefix: "导入失败\n"
-      transfer_success_prefix: "导入完成\n"
+      transfer_failed_prefix: "转存失败\n"
+      transfer_success_prefix: "转存完成\n"
       transfer_total_files_prefix: "\n总文件数: "
       transfer_total_size_prefix: "\n总大小: "
       transfer_elapsed_time_prefix: "\n耗时: "