feat: add ff pouch to clone and install pouch

Clone https://git.yumee.top/laily/.pouch to ~/.pouch and run install.sh.

fish/functions/ff.fish

@@ -16,6 +16,7 @@ function ff
         "region|Toggle or set CN_REGION (mirror/proxy region)" \
         "ssh|SSH init, copy key + add host config, or copy config to remote" \
         "dirsize|Show directory sizes (du wrapper)" \
+        "pouch|Clone and install pouch to ~/.pouch" \
         "help|Show this help message"
 
     # 确保 execute-script 可用（在 fish 自动加载前手动引入一次）
@@ -116,6 +117,14 @@ function ff
                 echo "Error: dirsize script not found at $script_path"
                 return 1
             end
+        case pouch
+            set -l script_path ~/.dotfile/script/pouch-install.sh
+            if test -f $script_path
+                bash $script_path $argv[2..-1]
+            else
+                echo "Error: pouch-install script not found at $script_path"
+                return 1
+            end
         case region
             if not functions -q region_toggle
                 source ~/.dotfile/fish/functions/region.fish