feat: 新增 disabled.rs — 禁用路径 JSON 文件读写

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src-tauri/src/commands/disabled.rs

@@ -0,0 +1,62 @@
+use serde::{Deserialize, Serialize};
+use std::fs;
+use std::path::PathBuf;
+
+fn disabled_file_path() -> PathBuf {
+    dirs::data_dir()
+        .or_else(dirs::home_dir)
+        .unwrap_or_else(|| PathBuf::from("."))
+        .join("PathEditor")
+        .join("disabled.json")
+}
+
+#[derive(Serialize, Deserialize, Default)]
+struct DisabledState {
+    #[serde(default)]
+    system: Vec<String>,
+    #[serde(default)]
+    user: Vec<String>,
+}
+
+/// 保存禁用路径列表（即时持久化，不依赖注册表保存按钮）
+#[tauri::command]
+pub fn save_disabled_state(system: Vec<String>, user: Vec<String>) -> Result<(), String> {
+    let state = DisabledState { system, user };
+    let path = disabled_file_path();
+
+    if let Some(parent) = path.parent() {
+        fs::create_dir_all(parent)
+            .map_err(|e| format!("无法创建配置目录: {}", e))?;
+    }
+
+    let json = serde_json::to_string_pretty(&state)
+        .map_err(|e| format!("JSON 序列化失败: {}", e))?;
+
+    fs::write(&path, &json)
+        .map_err(|e| format!("无法写入 disabled.json: {}", e))?;
+
+    log::info!("已保存禁用状态到: {}", path.display());
+    Ok(())
+}
+
+/// 加载禁用路径列表，返回 (system_disabled, user_disabled)
+#[tauri::command]
+pub fn load_disabled_state() -> Result<(Vec<String>, Vec<String>), String> {
+    let path = disabled_file_path();
+
+    if !path.exists() {
+        return Ok((vec![], vec![]));
+    }
+
+    let content = fs::read_to_string(&path)
+        .map_err(|e| format!("无法读取 disabled.json: {}", e))?;
+
+    if content.trim().is_empty() {
+        return Ok((vec![], vec![]));
+    }
+
+    let state: DisabledState = serde_json::from_str(&content)
+        .map_err(|e| format!("JSON 解析失败: {}", e))?;
+
+    Ok((state.system, state.user))
+}

src-tauri/src/commands/mod.rs

@@ -2,3 +2,4 @@ pub mod registry;
 pub mod system;
 pub mod backup;
 pub mod fs;
+pub mod disabled;

src-tauri/src/lib.rs

@@ -26,6 +26,8 @@ pub fn run() {
             commands::backup::backup_registry,
             commands::backup::get_appdata_dir,
             commands::fs::read_text_file,
+            commands::disabled::save_disabled_state,
+            commands::disabled::load_disabled_state,
         ])
         .run(tauri::generate_context!())
         .expect("error while running tauri application");