feat(provider): use live config for edit and backfill SSOT after switch

- Edit modal (Claude+Codex): when editing the current provider, initialize form from live files (Claude: ~/.claude/settings.json; Codex: ~/.codex/auth.json + ~/.codex/config.toml) instead of SSOT.
- Switch (Claude): after writing live settings.json for the target provider, read it back and update the provider’s SSOT to match live.
- Switch (Codex): keep MCP sync to config.toml, then read back TOML and update the target provider’s SSOT (preserves mcp.servers/mcp_servers schema).
- Add Tauri command read_live_provider_settings for both apps, register handler, and expose window.api.getLiveProviderSettings.
- Types updated accordingly; cargo check and pnpm typecheck pass.

src/components/EditProviderModal.tsx

@@ -1,4 +1,4 @@
-import React from "react";
+import React, { useEffect, useState } from "react";
 import { useTranslation } from "react-i18next";
 import { Provider } from "../types";
 import { AppType } from "../lib/tauri-api";
@@ -18,6 +18,31 @@ const EditProviderModal: React.FC<EditProviderModalProps> = ({
   onClose,
 }) => {
   const { t } = useTranslation();
+  const [effectiveProvider, setEffectiveProvider] = useState<Provider>(provider);
+
+  // 若为当前应用且正在编辑“当前供应商”，则优先读取 live 配置作为初始值（Claude/Codex 均适用）
+  useEffect(() => {
+    let mounted = true;
+    const maybeLoadLive = async () => {
+      try {
+        const currentId = await window.api.getCurrentProvider(appType);
+        if (currentId && currentId === provider.id) {
+          const live = await window.api.getLiveProviderSettings(appType);
+          if (!mounted) return;
+          setEffectiveProvider({ ...provider, settingsConfig: live });
+        } else {
+          setEffectiveProvider(provider);
+        }
+      } catch (e) {
+        // 读取失败则回退到原 provider
+        setEffectiveProvider(provider);
+      }
+    };
+    maybeLoadLive();
+    return () => {
+      mounted = false;
+    };
+  }, [appType, provider]);
 
   const handleSubmit = (data: Omit<Provider, "id">) => {
     onSave({
@@ -31,7 +56,7 @@ const EditProviderModal: React.FC<EditProviderModalProps> = ({
       appType={appType}
       title={t("common.edit")}
       submitText={t("common.save")}
-      initialData={provider}
+      initialData={effectiveProvider}
       showPresets={false}
       onSubmit={handleSubmit}
       onClose={onClose}

src/lib/tauri-api.ts

@@ -429,6 +429,22 @@ export const tauriAPI = {
     }
   },
 
+  // 读取当前生效（live）的 provider settings（根据 appType）
+  // Codex: { auth: object, config: string }
+  // Claude: settings.json 内容
+  getLiveProviderSettings: async (app?: AppType): Promise<any> => {
+    try {
+      return await invoke<any>("read_live_provider_settings", {
+        app_type: app,
+        app,
+        appType: app,
+      });
+    } catch (error) {
+      console.error("读取 live 配置失败:", error);
+      throw error;
+    }
+  },
+
   // ours: 第三方/自定义供应商——测速与端点管理
   // 第三方/自定义供应商：批量测试端点延迟
   testApiEndpoints: async (

src/vite-env.d.ts

@@ -96,6 +96,10 @@ declare global {
       syncEnabledMcpToCodex: () => Promise<boolean>;
       importMcpFromClaude: () => Promise<number>;
       importMcpFromCodex: () => Promise<number>;
+      // 读取当前生效（live）的 provider settings（根据 appType）
+      // Codex: { auth: object, config: string }
+      // Claude: settings.json 内容
+      getLiveProviderSettings: (app?: AppType) => Promise<any>;
       testApiEndpoints: (
         urls: string[],
         options?: { timeoutSecs?: number },