refactor: 脚本及配置文件命名统一用 _ 分隔

将 .sh/.bat 脚本与 .js/.plist/.Dockerfile 等文件中以 - 分隔的文件名
改为 _ 分隔，dcloud-renew 目录改为 dcloud、script_nuance 目录改为
nuance，并同步更新脚本内部引用与 README 路径。

Co-Authored-By: AtomCode (deepseek-v4-flash) <noreply@atomgit.com>

debian_add_user.sh

@@ -0,0 +1,44 @@
+echo "Usage: setup.sh [USER]"
+echo "Example: setup.sh alice"
+echo
+
+NewUser=$1
+while [ ! "$NewUser" ]
+do
+  echo "::*** To add a new user of name:"
+  read -p "***:: " NewUser
+done
+
+useradd $NewUser
+# usermod -a -G sudo $NewUser # Add to sudo group
+passwd $NewUser
+mkdir /home/$NewUser
+chown $NewUser:$NewUser /home/$NewUser
+chmod 700 /home/$NewUser
+
+# Set default shell in /etc/passwd
+# Debian 10 default to /bin/sh
+sed -i "s|/home/$NewUser:/bin/sh$|/home/$NewUser:/bin/bash|g" /etc/passwd
+# Debian 9 default to empty
+sed -i "s|/home/$NewUser:$|/home/$NewUser:/bin/bash|g" /etc/passwd
+
+echo "::*** Allow the new user [[$NewUser]] to sudo without password? [y] for yes, [anything else] for no"
+read -p "***:: " AllowSudo
+if [ "$AllowSudo" = "y" ]
+then
+  #usermod -a -G sudo $NewUser # Add to sudo group # Option 1: add user to %sudo group
+  echo "$NewUser ALL=(ALL:ALL) NOPASSWD:ALL" > /etc/sudoers.d/${NewUser//./-} # Option 2: add a user file into /etc/sudoers.d/
+  chmod a-w /etc/sudoers.d/${NewUser//./-}
+  echo "Added /etc/sudoers.d/${NewUser//./-} to allow sudo without password"
+else
+  echo "--- Nothing changed."
+fi
+echo
+
+echo "::*** Config home with standard init files? [y] for yes, [anything else] for no"
+read -p "***:: " ConfigHome
+if [ "$ConfigHome" = "y" ]
+then
+  source /faronear/sysconfig/nixhome_config.sh /faronear/sysconfig/nixhome $NewUser
+fi
+echo