refactor(modules): 添加类型注解并优化 WSL 检测

- 全模块补全类型注解 (files, after_update, on_change)
- docker: 仅在 WSL 环境禁用 networkd-wait-online
- docker: 添加 _is_wsl() 自动检测函数
- zsh/docker: 改进错误输出使用 decman.error
- wsl-init: 统一使用 [[ ]] 并格式化代码

modules/docker.py

@@ -1,4 +1,5 @@
 import subprocess
+from pathlib import Path
 
 import decman
 from decman import Module
@@ -6,10 +7,19 @@ from decman.plugins.pacman import packages as pacman_packages
 from decman.plugins.systemd import units
 
 
+def _is_wsl() -> bool:
+    """检测是否在 WSL 环境"""
+    try:
+        return "microsoft" in Path("/proc/version").read_text().lower()
+    except OSError:
+        return False
+
+
 class DockerModule(Module):
     def __init__(self, user: str):
         super().__init__("docker")
         self.user = user
+        self._is_wsl = _is_wsl()
 
     @pacman_packages
     def pacman_packages(self) -> set[str]:
@@ -19,26 +29,31 @@ class DockerModule(Module):
     def units(self) -> set[str]:
         return {"docker.socket"}
 
-    def after_update(self, store):
+    def after_update(self, store: object) -> None:
         self._ensure_user_in_docker_group()
-        self._disable_networkd_wait_online()
+        if self._is_wsl:
+            self._disable_networkd_wait_online()
 
-    def _ensure_user_in_docker_group(self):
+    def _ensure_user_in_docker_group(self) -> None:
         result = subprocess.run(
-            ["id", "-nG", self.user], capture_output=True, text=True
+            ["id", "-nG", self.user],
+            capture_output=True,
+            text=True,
+            check=False,
         )
         if result.returncode != 0:
+            decman.error(f"无法读取用户 {self.user} 的组信息")
             return
         if "docker" not in result.stdout.split():
             decman.prg(["gpasswd", "-a", self.user, "docker"])
 
-    def _disable_networkd_wait_online(self):
-        # systemd-networkd-wait-online.service 会阻塞 network-online.target
-        # 直到所有 link ready 或 120s 超时，导致 docker.service 启动卡约两分钟
+    def _disable_networkd_wait_online(self) -> None:
+        """WSL 环境：禁用 systemd-networkd-wait-online 避免启动阻塞"""
         result = subprocess.run(
             ["systemctl", "is-enabled", "systemd-networkd-wait-online.service"],
             capture_output=True,
             text=True,
+            check=False,
         )
-        if result.stdout.strip() == "enabled":
+        if result.returncode == 0 and result.stdout.strip() == "enabled":
             decman.prg(["systemctl", "disable", "systemd-networkd-wait-online.service"])