Revert "feat: add common config snippet management system"

This reverts commit 36b78d1b4b.

src-tauri/src/config.rs

@@ -6,10 +6,6 @@ use std::path::{Path, PathBuf};
 
 /// 获取 Claude Code 配置目录路径
 pub fn get_claude_config_dir() -> PathBuf {
-    if let Some(custom) = crate::settings::get_claude_override_dir() {
-        return custom;
-    }
-
     dirs::home_dir()
         .expect("无法获取用户主目录")
         .join(".claude")