Initial commit: dcli-based Arch Linux WSL configuration

- Bootstrap script for yay and dcli installation
- Declarative package management with modules (base, zsh, dev-tools)
- China mirror configuration (Tsinghua)
- Zsh with oh-my-zsh, autosuggestions, syntax-highlighting
- Dev tools: mise, zoxide, fzf, ripgrep, fd, bat

arch-config/files/etc/pacman.conf

@@ -0,0 +1,18 @@
+[options]
+HoldPkg     = pacman glibc
+Architecture = auto
+Color
+CheckSpace
+ParallelDownloads = 5
+
+SigLevel    = Required DatabaseOptional
+LocalFileSigLevel = Optional
+
+[core]
+Server = https://mirrors.tuna.tsinghua.edu.cn/archlinux/$repo/os/$arch
+
+[extra]
+Server = https://mirrors.tuna.tsinghua.edu.cn/archlinux/$repo/os/$arch
+
+[multilib]
+Server = https://mirrors.tuna.tsinghua.edu.cn/archlinux/$repo/os/$arch