fix: Improve Windows compatibility for paths and shell config

- Use os.tmpdir() instead of hardcoded /tmp for cross-platform temp files
- Use os.homedir() with USERPROFILE fallback for Windows home directory
- Disable forceZsh on Windows (zsh not available by default)

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src/hooks/claude-code-hooks/plugin-config.ts

@@ -3,7 +3,10 @@
  * Contains settings for hook command execution (zsh, etc.)
  */
 
+const isWindows = process.platform === "win32"
+
 export const DEFAULT_CONFIG = {
-  forceZsh: true,
+  // Windows doesn't have zsh by default, so we disable forceZsh on Windows
+  forceZsh: !isWindows,
   zshPath: "/bin/zsh",
 }