✨ 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/changelog.rs

@@ -13,13 +13,14 @@ use crate::i18n::{Messages, translate_changelog_category};
 
 /// Generate changelog
 #[derive(Parser)]
+#[command(disable_version_flag = true, disable_help_flag = false)]
 pub struct ChangelogCommand {
     /// Output file path
     #[arg(short, long)]
     output: Option<PathBuf>,
 
     /// Version to generate changelog for
-    #[arg(short, long)]
+    #[arg(long)]
     version: Option<String>,
 
     /// Generate from specific tag
@@ -51,7 +52,7 @@ pub struct ChangelogCommand {
     include_authors: bool,
 
     /// Format (keep-a-changelog, github-releases)
-    #[arg(short, long)]
+    #[arg(long)]
     format: Option<String>,
 
     /// Dry run (output to stdout)
@@ -64,9 +65,13 @@ pub struct ChangelogCommand {
 }
 
 impl ChangelogCommand {
-    pub async fn execute(&self) -> Result<()> {
+    pub async fn execute(&self, config_path: Option<PathBuf>) -> Result<()> {
         let repo = find_repo(std::env::current_dir()?.as_path())?;
-        let manager = ConfigManager::new()?;
+        let manager = if let Some(ref path) = config_path {
+            ConfigManager::with_path(path)?
+        } else {
+            ConfigManager::new()?
+        };
         let config = manager.config();
         let language = manager.get_language().unwrap_or(Language::English);
         let messages = Messages::new(language);