feat(douyin):新增--notef参数，支持从txt/md文件读取正文预编辑内容

docs/install.md

@@ -103,8 +103,11 @@ sau bilibili --help
 sau douyin login --account <account_name>
 sau douyin check --account <account_name>
 sau douyin upload-video --account <account_name> --file videos/demo.mp4 --title "示例标题" --desc "示例简介"
+图文正文1:
 $noteText = @"图文正文"@    
 sau douyin upload-note --account <account_name> --images videos/demo1.png videos/demo2.png --title "图文标题" --note $noteText  --tags 'tag1,tag2'
+图文正文2:
+sau douyin upload-note --account <account_name> --images videos/demo1.png videos/demo2.png --title "图文标题" --notef '图文文件路径'  --tags 'tag1,tag2'
 ``` 
 
 抖音卡login手动获取cookie:

sau_cli.py

@@ -547,6 +547,7 @@ def build_parser() -> argparse.ArgumentParser:
     upload_note_parser.add_argument("--images", required=True, nargs="+", type=existing_file_path, help="Image file paths")
     upload_note_parser.add_argument("--title", required=True, help="Note title")
     upload_note_parser.add_argument("--note", default="", help="Optional note content")
+    upload_note_parser.add_argument("--notef", default="", help="Read note content from file (txt/md)")
     upload_note_parser.add_argument("--tags", default="", help="Comma-separated tags, such as tag1,tag2")
     upload_note_parser.add_argument("--schedule", type=schedule_value, help=f"Schedule time in {schedule_help}")
     add_runtime_flags(upload_note_parser)
@@ -687,11 +688,20 @@ async def dispatch(args: argparse.Namespace) -> int:
             return 0
 
         if args.action == "upload-note":
+            # 如果指定了 --notef，读取文件内容作为 note
+            note_content = args.note
+            if args.notef:
+                note_file = Path(args.notef)
+                if not note_file.exists():
+                    print(f"错误：文件不存在: {note_file}", file=sys.stderr)
+                    return 1
+                note_content = note_file.read_text(encoding="utf-8")
+
             request = DouyinNoteUploadRequest(
                 account_name=args.account,
                 image_files=parse_image_files(args.images),
                 title=args.title,
-                note=args.note,
+                note=note_content,
                 tags=parse_tags(args.tags),
                 publish_date=args.schedule or 0,
                 publish_strategy=publish_strategy,