添加Claude和Codex环境变量检查 (#242)

* feat(env): add environment variable conflict detection and management

实现了系统环境变量冲突检测与管理功能:

核心功能:
- 自动检测会影响 Claude/Codex 的系统环境变量
- 支持 Windows 注册表和 Unix shell 配置文件检测
- 提供可视化的环境变量冲突警告横幅
- 支持批量选择和删除环境变量
- 删除前自动备份,支持后续恢复

技术实现:
- Rust 后端: 跨平台环境变量检测与管理
- React 前端: EnvWarningBanner 组件交互界面
- 国际化支持: 中英文界面
- 类型安全: 完整的 TypeScript 类型定义

* refactor(env): remove unused imports and function

Remove unused HashMap and PathBuf imports, and delete the unused get_source_description function to clean up the code.

src-tauri/src/services/env_checker.rs

@@ -0,0 +1,161 @@
+use serde::{Deserialize, Serialize};
+use std::fs;
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct EnvConflict {
+    pub var_name: String,
+    pub var_value: String,
+    pub source_type: String, // "system" | "file"
+    pub source_path: String, // Registry path or file path
+}
+
+#[cfg(target_os = "windows")]
+use winreg::enums::*;
+#[cfg(target_os = "windows")]
+use winreg::RegKey;
+
+/// Check environment variables for conflicts
+pub fn check_env_conflicts(app: &str) -> Result<Vec<EnvConflict>, String> {
+    let keywords = get_keywords_for_app(app);
+    let mut conflicts = Vec::new();
+
+    // Check system environment variables
+    conflicts.extend(check_system_env(&keywords)?);
+
+    // Check shell configuration files (Unix only)
+    #[cfg(not(target_os = "windows"))]
+    conflicts.extend(check_shell_configs(&keywords)?);
+
+    Ok(conflicts)
+}
+
+/// Get relevant keywords for each app
+fn get_keywords_for_app(app: &str) -> Vec<&str> {
+    match app.to_lowercase().as_str() {
+        "claude" => vec!["ANTHROPIC"],
+        "codex" => vec!["OPENAI"],
+        _ => vec![],
+    }
+}
+
+/// Check system environment variables (Windows Registry or Unix env)
+#[cfg(target_os = "windows")]
+fn check_system_env(keywords: &[&str]) -> Result<Vec<EnvConflict>, String> {
+    let mut conflicts = Vec::new();
+
+    // Check HKEY_CURRENT_USER\Environment
+    if let Ok(hkcu) = RegKey::predef(HKEY_CURRENT_USER).open_subkey("Environment") {
+        for (name, value) in hkcu.enum_values().filter_map(Result::ok) {
+            if keywords.iter().any(|k| name.to_uppercase().contains(k)) {
+                if let Ok(val) = value.to_string() {
+                    conflicts.push(EnvConflict {
+                        var_name: name.clone(),
+                        var_value: val,
+                        source_type: "system".to_string(),
+                        source_path: "HKEY_CURRENT_USER\\Environment".to_string(),
+                    });
+                }
+            }
+        }
+    }
+
+    // Check HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment
+    if let Ok(hklm) = RegKey::predef(HKEY_LOCAL_MACHINE)
+        .open_subkey("SYSTEM\\CurrentControlSet\\Control\\Session Manager\\Environment")
+    {
+        for (name, value) in hklm.enum_values().filter_map(Result::ok) {
+            if keywords.iter().any(|k| name.to_uppercase().contains(k)) {
+                if let Ok(val) = value.to_string() {
+                    conflicts.push(EnvConflict {
+                        var_name: name.clone(),
+                        var_value: val,
+                        source_type: "system".to_string(),
+                        source_path: "HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\Session Manager\\Environment".to_string(),
+                    });
+                }
+            }
+        }
+    }
+
+    Ok(conflicts)
+}
+
+#[cfg(not(target_os = "windows"))]
+fn check_system_env(keywords: &[&str]) -> Result<Vec<EnvConflict>, String> {
+    let mut conflicts = Vec::new();
+
+    // Check current process environment
+    for (key, value) in std::env::vars() {
+        if keywords.iter().any(|k| key.to_uppercase().contains(k)) {
+            conflicts.push(EnvConflict {
+                var_name: key,
+                var_value: value,
+                source_type: "system".to_string(),
+                source_path: "Process Environment".to_string(),
+            });
+        }
+    }
+
+    Ok(conflicts)
+}
+
+/// Check shell configuration files for environment variable exports (Unix only)
+#[cfg(not(target_os = "windows"))]
+fn check_shell_configs(keywords: &[&str]) -> Result<Vec<EnvConflict>, String> {
+    let mut conflicts = Vec::new();
+
+    let home = std::env::var("HOME").unwrap_or_else(|_| "/tmp".to_string());
+    let config_files = vec![
+        format!("{}/.bashrc", home),
+        format!("{}/.bash_profile", home),
+        format!("{}/.zshrc", home),
+        format!("{}/.zprofile", home),
+        format!("{}/.profile", home),
+        "/etc/profile".to_string(),
+        "/etc/bashrc".to_string(),
+    ];
+
+    for file_path in config_files {
+        if let Ok(content) = fs::read_to_string(&file_path) {
+            // Parse lines for export statements
+            for (line_num, line) in content.lines().enumerate() {
+                let trimmed = line.trim();
+
+                // Match patterns like: export VAR=value or VAR=value
+                if trimmed.starts_with("export ") || (!trimmed.starts_with('#') && trimmed.contains('=')) {
+                    let export_line = trimmed.strip_prefix("export ").unwrap_or(trimmed);
+
+                    if let Some(eq_pos) = export_line.find('=') {
+                        let var_name = export_line[..eq_pos].trim();
+                        let var_value = export_line[eq_pos + 1..].trim();
+
+                        // Check if variable name contains any keyword
+                        if keywords.iter().any(|k| var_name.to_uppercase().contains(k)) {
+                            conflicts.push(EnvConflict {
+                                var_name: var_name.to_string(),
+                                var_value: var_value.trim_matches('"').trim_matches('\'').to_string(),
+                                source_type: "file".to_string(),
+                                source_path: format!("{}:{}", file_path, line_num + 1),
+                            });
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    Ok(conflicts)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_get_keywords() {
+        assert_eq!(get_keywords_for_app("claude"), vec!["ANTHROPIC"]);
+        assert_eq!(get_keywords_for_app("codex"), vec!["OPENAI"]);
+        assert_eq!(get_keywords_for_app("unknown"), Vec::<&str>::new());
+    }
+}