✨ feat(commands)：为所有命令添加config_path参数支持，实现自定义配置文件路径

♻️ refactor(config)：重构ConfigManager，添加with_path_fresh方法用于初始化新配置
🔧 fix(git)：改进跨平台路径处理，增强git仓库检测的鲁棒性
✅ test(tests)：添加全面的集成测试，覆盖所有命令和跨平台场景

src/commands/init.rs

@@ -2,6 +2,7 @@ use anyhow::Result;
 use clap::Parser;
 use colored::Colorize;
 use dialoguer::{Confirm, Input, Select};
+use std::path::PathBuf;
 
 use crate::config::{GitProfile, Language};
 use crate::config::manager::ConfigManager;
@@ -22,12 +23,13 @@ pub struct InitCommand {
 }
 
 impl InitCommand {
-    pub async fn execute(&self) -> Result<()> {
-        // Start with English messages for initialization
+    pub async fn execute(&self, config_path: Option<PathBuf>) -> Result<()> {
         let messages = Messages::new(Language::English);
         println!("{}", messages.initializing().bold().cyan());
 
-        let config_path = crate::config::AppConfig::default_path()?;
+        let config_path = config_path.unwrap_or_else(|| {
+            crate::config::AppConfig::default_path().unwrap()
+        });
         
         // Check if config already exists
         if config_path.exists() && !self.reset {
@@ -41,20 +43,24 @@ impl InitCommand {
                     println!("{}", "Initialization cancelled.".yellow());
                     return Ok(());
                 }
+            } else {
+                println!("{}", "Configuration already exists. Use --reset to overwrite.".yellow());
+                return Ok(());
             }
         }
 
-        let mut manager = if self.reset {
-            ConfigManager::new()?
-        } else {
-            ConfigManager::new().or_else(|_| Ok::<_, anyhow::Error>(ConfigManager::default()))?
-        };
+        // Create parent directory if needed
+        if let Some(parent) = config_path.parent() {
+            std::fs::create_dir_all(parent)
+                .map_err(|e| anyhow::anyhow!("Failed to create config directory: {}", e))?;
+        }
+
+        // Create new config manager with fresh config
+        let mut manager = ConfigManager::with_path_fresh(&config_path)?;
 
         if self.yes {
-            // Quick setup with defaults
             self.quick_setup(&mut manager).await?;
         } else {
-            // Interactive setup
             self.interactive_setup(&mut manager).await?;
         }