feat(commands): add global and per-app proxy config commands

Add new Tauri commands for the refactored proxy configuration:
- get_global_proxy_config / update_global_proxy_config
- get_proxy_config_for_app / update_proxy_config_for_app
Update startup restore logic to read from proxy_config table.

src-tauri/src/commands/failover.rs

@@ -56,21 +56,21 @@ pub async fn remove_from_failover_queue(
         .map_err(|e| e.to_string())
 }
 
-/// 获取指定应用的自动故障转移开关状态
+/// 获取指定应用的自动故障转移开关状态（从 proxy_config 表读取）
 #[tauri::command]
 pub async fn get_auto_failover_enabled(
     state: tauri::State<'_, AppState>,
     app_type: String,
 ) -> Result<bool, String> {
-    let key = format!("auto_failover_enabled_{app_type}");
     state
         .db
-        .get_setting(&key)
-        .map(|v| v.map(|s| s == "true").unwrap_or(false)) // 默认关闭
+        .get_proxy_config_for_app(&app_type)
+        .await
+        .map(|config| config.auto_failover_enabled)
         .map_err(|e| e.to_string())
 }
 
-/// 设置指定应用的自动故障转移开关状态
+/// 设置指定应用的自动故障转移开关状态（写入 proxy_config 表）
 ///
 /// 注意：关闭故障转移时不会清除队列，队列内容会保留供下次开启时使用
 #[tauri::command]
@@ -79,12 +79,24 @@ pub async fn set_auto_failover_enabled(
     app_type: String,
     enabled: bool,
 ) -> Result<(), String> {
-    let key = format!("auto_failover_enabled_{app_type}");
-    let value = if enabled { "true" } else { "false" };
-
     log::info!(
-        "[Failover] Setting auto_failover_enabled: key='{key}', value='{value}', app_type='{app_type}'"
+        "[Failover] Setting auto_failover_enabled: app_type='{app_type}', enabled={enabled}"
     );
 
-    state.db.set_setting(&key, value).map_err(|e| e.to_string())
+    // 读取当前配置
+    let mut config = state
+        .db
+        .get_proxy_config_for_app(&app_type)
+        .await
+        .map_err(|e| e.to_string())?;
+
+    // 更新 auto_failover_enabled 字段
+    config.auto_failover_enabled = enabled;
+
+    // 写回数据库
+    state
+        .db
+        .update_proxy_config_for_app(config)
+        .await
+        .map_err(|e| e.to_string())
 }

src-tauri/src/commands/proxy.rs

@@ -62,6 +62,63 @@ pub async fn update_proxy_config(
     state.proxy_service.update_config(&config).await
 }
 
+// ==================== Global & Per-App Config ====================
+
+/// 获取全局代理配置
+///
+/// 返回统一的全局配置字段（代理开关、监听地址、端口、日志开关）
+#[tauri::command]
+pub async fn get_global_proxy_config(
+    state: tauri::State<'_, AppState>,
+) -> Result<GlobalProxyConfig, String> {
+    let db = &state.db;
+    db.get_global_proxy_config()
+        .await
+        .map_err(|e| e.to_string())
+}
+
+/// 更新全局代理配置
+///
+/// 更新统一的全局配置字段，会同时更新三行（claude/codex/gemini）
+#[tauri::command]
+pub async fn update_global_proxy_config(
+    state: tauri::State<'_, AppState>,
+    config: GlobalProxyConfig,
+) -> Result<(), String> {
+    let db = &state.db;
+    db.update_global_proxy_config(config)
+        .await
+        .map_err(|e| e.to_string())
+}
+
+/// 获取指定应用的代理配置
+///
+/// 返回应用级配置（enabled、auto_failover、超时、熔断器等）
+#[tauri::command]
+pub async fn get_proxy_config_for_app(
+    state: tauri::State<'_, AppState>,
+    app_type: String,
+) -> Result<AppProxyConfig, String> {
+    let db = &state.db;
+    db.get_proxy_config_for_app(&app_type)
+        .await
+        .map_err(|e| e.to_string())
+}
+
+/// 更新指定应用的代理配置
+///
+/// 更新应用级配置（enabled、auto_failover、超时、熔断器等）
+#[tauri::command]
+pub async fn update_proxy_config_for_app(
+    state: tauri::State<'_, AppState>,
+    config: AppProxyConfig,
+) -> Result<(), String> {
+    let db = &state.db;
+    db.update_proxy_config_for_app(config)
+        .await
+        .map_err(|e| e.to_string())
+}
+
 /// 检查代理服务器是否正在运行
 #[tauri::command]
 pub async fn is_proxy_running(state: tauri::State<'_, AppState>) -> Result<bool, String> {
@@ -126,19 +183,12 @@ pub async fn reset_circuit_breaker(
         .reset_provider_circuit_breaker(&provider_id, &app_type)
         .await?;
 
-    // 3. 检查是否应该切回优先级更高的供应商
-    let failover_key = format!("auto_failover_enabled_{app_type}");
-    let auto_failover_enabled = match db.get_setting(&failover_key) {
-        Ok(Some(value)) => value == "true",
-        Ok(None) => {
-            log::debug!(
-                "[{app_type}] Failover setting '{failover_key}' not found, defaulting to disabled"
-            );
-            false
-        }
+    // 3. 检查是否应该切回优先级更高的供应商（从 proxy_config 表读取）
+    let auto_failover_enabled = match db.get_proxy_config_for_app(&app_type).await {
+        Ok(config) => config.auto_failover_enabled,
         Err(e) => {
             log::error!(
-                "[{app_type}] Failed to read failover setting '{failover_key}': {e}, defaulting to disabled"
+                "[{app_type}] Failed to read proxy_config for auto_failover_enabled: {e}, defaulting to disabled"
             );
             false
         }

src-tauri/src/lib.rs

@@ -596,7 +596,7 @@ pub fn run() {
             commands::upsert_mcp_server_in_config,
             commands::delete_mcp_server_in_config,
             commands::set_mcp_enabled,
-            // v3.7.0: Unified MCP management
+            // Unified MCP management
             commands::get_mcp_servers,
             commands::upsert_mcp_server,
             commands::delete_mcp_server,
@@ -656,6 +656,11 @@ pub fn run() {
             commands::get_proxy_status,
             commands::get_proxy_config,
             commands::update_proxy_config,
+            // Global & Per-App Config
+            commands::get_global_proxy_config,
+            commands::update_global_proxy_config,
+            commands::get_proxy_config_for_app,
+            commands::update_proxy_config_for_app,
             commands::is_proxy_running,
             commands::is_live_takeover_active,
             commands::switch_proxy_provider,
@@ -845,22 +850,20 @@ pub async fn cleanup_before_exit(app_handle: &tauri::AppHandle) {
 // 启动时恢复代理状态
 // ============================================================
 
-/// 启动时根据 settings 表中的代理状态自动恢复代理服务
+/// 启动时根据 proxy_config 表中的代理状态自动恢复代理服务
 ///
-/// 检查 `proxy_takeover_claude`、`proxy_takeover_codex`、`proxy_takeover_gemini` 的值，
-/// 如果有任一应用的状态为 `true`，则自动启动代理服务并接管对应应用的 Live 配置。
+/// 检查 `proxy_config.enabled` 字段，如果有任一应用的状态为 `true`，
+/// 则自动启动代理服务并接管对应应用的 Live 配置。
 async fn restore_proxy_state_on_startup(state: &store::AppState) {
-    // 收集需要恢复接管的应用列表
-    let apps_to_restore: Vec<&str> = ["claude", "codex", "gemini"]
-        .iter()
-        .filter(|app_type| {
-            state
-                .db
-                .get_proxy_takeover_enabled(app_type)
-                .unwrap_or(false)
-        })
-        .copied()
-        .collect();
+    // 收集需要恢复接管的应用列表（从 proxy_config.enabled 读取）
+    let mut apps_to_restore = Vec::new();
+    for app_type in ["claude", "codex", "gemini"] {
+        if let Ok(config) = state.db.get_proxy_config_for_app(app_type).await {
+            if config.enabled {
+                apps_to_restore.push(app_type);
+            }
+        }
+    }
 
     if apps_to_restore.is_empty() {
         log::debug!("启动时无需恢复代理状态");
@@ -882,7 +885,11 @@ async fn restore_proxy_state_on_startup(state: &store::AppState) {
             Err(e) => {
                 log::error!("✗ 恢复 {app_type} 的代理接管状态失败: {e}");
                 // 失败时清除该应用的状态，避免下次启动再次尝试
-                if let Err(clear_err) = state.db.set_proxy_takeover_enabled(app_type, false) {
+                if let Err(clear_err) = state
+                    .proxy_service
+                    .set_takeover_for_app(app_type, false)
+                    .await
+                {
                     log::error!("清除 {app_type} 代理状态失败: {clear_err}");
                 }
             }