docs: clarify account name semantics

skills/douyin-upload/scripts/examples/douyin_cli_template.py

@@ -10,7 +10,9 @@ def run_command(command: list[str]) -> None:
 
 
 def main() -> None:
-    account = "creator"
+    account = "account_a"
+    # account_name is user-defined. One account_name maps to one account file.
+    # You can prepare multiple account names and run them in parallel.
 
     commands = [
         ["sau", "douyin", "login", "--account", account, "--headless"],

skills/douyin-upload/scripts/examples/douyin_commands.ps1

@@ -1,6 +1,8 @@
 # PowerShell examples for the installed sau CLI.
 
-$account = "creator"
+# account_name is user-defined. One account_name maps to one account file.
+# You can prepare multiple account names and run them in parallel.
+$account = "account_a"
 $video = "videos/demo.mp4"
 $thumbnail = "videos/demo.png"
 $noteImages = @("videos/1.png", "videos/2.png")

skills/douyin-upload/scripts/examples/douyin_commands.sh

@@ -2,7 +2,9 @@
 
 set -euo pipefail
 
-account="creator"
+# account_name is user-defined. One account_name maps to one account file.
+# You can prepare multiple account names and run them in parallel.
+account="account_a"
 video="videos/demo.mp4"
 thumbnail="videos/demo.png"