refactor: extract business logic to useProviderActions hook

Major improvements:
- Create `src/hooks/useProviderActions.ts` (147 lines)
  - Consolidate provider operations (add, update, delete, switch)
  - Extract Claude plugin sync logic
  - Extract usage script save logic

- Simplify `App.tsx` (347 → 226 lines, -35%)
  - Remove 8 callback functions
  - Remove Claude plugin sync logic
  - Remove usage script save logic
  - Cleaner and more maintainable

- Replace `onNotify` prop with `toast` in:
  - `UsageScriptModal.tsx`
  - `McpPanel.tsx`
  - `McpFormModal.tsx`
  - `McpWizardModal.tsx`
  - Unified notification system using sonner

Benefits:
- Reduced coupling and improved maintainability
- Business logic isolated in hooks, easier to test
- Consistent notification system across the app

src/App.tsx

@@ -1,22 +1,11 @@
-import { useCallback, useEffect, useMemo, useState } from "react";
+import { useEffect, useMemo, useState } from "react";
 import { useTranslation } from "react-i18next";
 import { toast } from "sonner";
-import { useQueryClient } from "@tanstack/react-query";
 import { Plus, Settings } from "lucide-react";
-import type { Provider, UsageScript } from "@/types";
-import {
-  useProvidersQuery,
-  useAddProviderMutation,
-  useUpdateProviderMutation,
-  useDeleteProviderMutation,
-  useSwitchProviderMutation,
-} from "@/lib/query";
-import {
-  providersApi,
-  settingsApi,
-  type AppType,
-  type ProviderSwitchEvent,
-} from "@/lib/api";
+import type { Provider } from "@/types";
+import { useProvidersQuery } from "@/lib/query";
+import { providersApi, settingsApi, type AppType, type ProviderSwitchEvent } from "@/lib/api";
+import { useProviderActions } from "@/hooks/useProviderActions";
 import { extractErrorMessage } from "@/utils/errorUtils";
 import { AppSwitcher } from "@/components/AppSwitcher";
 import { ModeToggle } from "@/components/mode-toggle";
@@ -32,7 +21,6 @@ import { Button } from "@/components/ui/button";
 
 function App() {
   const { t } = useTranslation();
-  const queryClient = useQueryClient();
 
   const [activeApp, setActiveApp] = useState<AppType>("claude");
   const [isSettingsOpen, setIsSettingsOpen] = useState(false);
@@ -46,11 +34,16 @@ function App() {
   const providers = useMemo(() => data?.providers ?? {}, [data]);
   const currentProviderId = data?.currentProviderId ?? "";
 
-  const addProviderMutation = useAddProviderMutation(activeApp);
-  const updateProviderMutation = useUpdateProviderMutation(activeApp);
-  const deleteProviderMutation = useDeleteProviderMutation(activeApp);
-  const switchProviderMutation = useSwitchProviderMutation(activeApp);
+  // 🎯 使用 useProviderActions Hook 统一管理所有 Provider 操作
+  const {
+    addProvider,
+    updateProvider,
+    switchProvider,
+    deleteProvider,
+    saveUsageScript,
+  } = useProviderActions(activeApp);
 
+  // 监听来自托盘菜单的切换事件
   useEffect(() => {
     let unsubscribe: (() => void) | undefined;
 
@@ -74,154 +67,42 @@ function App() {
     };
   }, [activeApp, refetch]);
 
-  const handleNotify = useCallback(
-    (message: string, type: "success" | "error", duration?: number) => {
-      const options = duration ? { duration } : undefined;
-      if (type === "error") {
-        toast.error(message, options);
-      } else {
-        toast.success(message, options);
-      }
-    },
-    [],
-  );
-
-  const handleOpenWebsite = useCallback(
-    async (url: string) => {
-      try {
-        await settingsApi.openExternal(url);
-      } catch (error) {
-        const detail =
-          extractErrorMessage(error) ||
-          t("notifications.openLinkFailed", {
-            defaultValue: "链接打开失败",
-          });
-        toast.error(detail);
-      }
-    },
-    [t],
-  );
-
-  const handleAddProvider = useCallback(
-    async (provider: Omit<Provider, "id">) => {
-      await addProviderMutation.mutateAsync(provider);
-    },
-    [addProviderMutation],
-  );
-
-  const handleEditProvider = useCallback(
-    async (provider: Provider) => {
-      try {
-        await updateProviderMutation.mutateAsync(provider);
-        await providersApi.updateTrayMenu();
-        setEditingProvider(null);
-      } catch {
-        // 错误提示由 mutation 统一处理
-      }
-    },
-    [updateProviderMutation],
-  );
-
-  const handleSyncClaudePlugin = useCallback(
-    async (provider: Provider) => {
-      if (activeApp !== "claude") return;
-
-      try {
-        const settings = await settingsApi.get();
-        if (!settings?.enableClaudePluginIntegration) {
-          return;
-        }
-
-        const isOfficial = provider.category === "official";
-        await settingsApi.applyClaudePluginConfig({ official: isOfficial });
-
-        toast.success(
-          isOfficial
-            ? t("notifications.appliedToClaudePlugin", {
-                defaultValue: "已同步为官方配置",
-              })
-            : t("notifications.removedFromClaudePlugin", {
-                defaultValue: "已移除 Claude 插件配置",
-              }),
-          { duration: 2200 },
-        );
-      } catch (error) {
-        const detail =
-          extractErrorMessage(error) ||
-          t("notifications.syncClaudePluginFailed", {
-            defaultValue: "同步 Claude 插件失败",
-          });
-        toast.error(detail, { duration: 4200 });
-      }
-    },
-    [activeApp, t],
-  );
-
-  const handleSwitchProvider = useCallback(
-    async (provider: Provider) => {
-      try {
-        await switchProviderMutation.mutateAsync(provider.id);
-        await handleSyncClaudePlugin(provider);
-      } catch {
-        // 错误提示由 mutation 与同步函数处理
-      }
-    },
-    [switchProviderMutation, handleSyncClaudePlugin],
-  );
-
-  const handleRequestDelete = useCallback((provider: Provider) => {
-    setConfirmDelete(provider);
-  }, []);
-
-  const handleConfirmDelete = useCallback(async () => {
-    if (!confirmDelete) return;
+  // 打开网站链接
+  const handleOpenWebsite = async (url: string) => {
     try {
-      await deleteProviderMutation.mutateAsync(confirmDelete.id);
-    } finally {
-      setConfirmDelete(null);
+      await settingsApi.openExternal(url);
+    } catch (error) {
+      const detail =
+        extractErrorMessage(error) ||
+        t("notifications.openLinkFailed", {
+          defaultValue: "链接打开失败",
+        });
+      toast.error(detail);
     }
-  }, [confirmDelete, deleteProviderMutation]);
+  };
 
-  const handleImportSuccess = useCallback(async () => {
+  // 编辑供应商
+  const handleEditProvider = async (provider: Provider) => {
+    await updateProvider(provider);
+    setEditingProvider(null);
+  };
+
+  // 确认删除供应商
+  const handleConfirmDelete = async () => {
+    if (!confirmDelete) return;
+    await deleteProvider(confirmDelete.id);
+    setConfirmDelete(null);
+  };
+
+  // 导入配置成功后刷新
+  const handleImportSuccess = async () => {
     await refetch();
     try {
       await providersApi.updateTrayMenu();
     } catch (error) {
       console.error("[App] Failed to refresh tray menu", error);
     }
-  }, [refetch]);
-
-  const handleSaveUsageScript = useCallback(
-    async (provider: Provider, script: UsageScript) => {
-      try {
-        const updatedProvider: Provider = {
-          ...provider,
-          meta: {
-            ...provider.meta,
-            usage_script: script,
-          },
-        };
-
-        await providersApi.update(updatedProvider, activeApp);
-        await queryClient.invalidateQueries({
-          queryKey: ["providers", activeApp],
-        });
-        toast.success(
-          t("provider.usageSaved", {
-            defaultValue: "用量查询配置已保存",
-          }),
-        );
-      } catch (error) {
-        const detail =
-          extractErrorMessage(error) ||
-          t("provider.usageSaveFailed", {
-            defaultValue: "用量查询配置保存失败",
-          });
-        toast.error(detail);
-      }
-    },
-    [activeApp, queryClient, t],
-  );
+  };
 
   return (
     <div className="flex h-screen flex-col bg-gray-50 dark:bg-gray-950">
@@ -271,9 +152,9 @@ function App() {
             currentProviderId={currentProviderId}
             appType={activeApp}
             isLoading={isLoading}
-            onSwitch={handleSwitchProvider}
+            onSwitch={switchProvider}
             onEdit={setEditingProvider}
-            onDelete={handleRequestDelete}
+            onDelete={setConfirmDelete}
             onConfigureUsage={setUsageProvider}
             onOpenWebsite={handleOpenWebsite}
             onCreate={() => setIsAddOpen(true)}
@@ -285,7 +166,7 @@ function App() {
         open={isAddOpen}
         onOpenChange={setIsAddOpen}
         appType={activeApp}
-        onSubmit={handleAddProvider}
+        onSubmit={addProvider}
       />
 
       <EditProviderDialog
@@ -307,9 +188,8 @@ function App() {
           isOpen={Boolean(usageProvider)}
           onClose={() => setUsageProvider(null)}
           onSave={(script) => {
-            void handleSaveUsageScript(usageProvider, script);
+            void saveUsageScript(usageProvider, script);
           }}
-          onNotify={handleNotify}
         />
       )}
 
@@ -338,7 +218,6 @@ function App() {
         open={isMcpOpen}
         onOpenChange={setIsMcpOpen}
         appType={activeApp}
-        onNotify={handleNotify}
       />
     </div>
   );

src/components/UsageScriptModal.tsx

@@ -1,5 +1,6 @@
 import React, { useState } from "react";
 import { Play, Wand2 } from "lucide-react";
+import { toast } from "sonner";
 import { Provider, UsageScript } from "../types";
 import { usageApi, type AppType } from "@/lib/api";
 import JsonEditor from "./JsonEditor";
@@ -21,11 +22,6 @@ interface UsageScriptModalProps {
   isOpen: boolean;
   onClose: () => void;
   onSave: (script: UsageScript) => void;
-  onNotify?: (
-    message: string,
-    type: "success" | "error",
-    duration?: number,
-  ) => void;
 }
 
 // 预设模板（JS 对象字面量格式）
@@ -91,7 +87,6 @@ const UsageScriptModal: React.FC<UsageScriptModalProps> = ({
   isOpen,
   onClose,
   onSave,
-  onNotify,
 }) => {
   const [script, setScript] = useState<UsageScript>(() => {
     return (
@@ -109,19 +104,18 @@ const UsageScriptModal: React.FC<UsageScriptModalProps> = ({
   const handleSave = () => {
     // 验证脚本格式
     if (script.enabled && !script.code.trim()) {
-      onNotify?.("脚本配置不能为空", "error");
+      toast.error("脚本配置不能为空");
       return;
     }
 
     // 基本的 JS 语法检查（检查是否包含 return 语句）
     if (script.enabled && !script.code.includes("return")) {
-      onNotify?.("脚本必须包含 return 语句", "error", 5000);
+      toast.error("脚本必须包含 return 语句", { duration: 5000 });
       return;
     }
 
     onSave(script);
     onClose();
-    onNotify?.("用量查询配置已保存", "success", 2000);
   };
 
   const handleTest = async () => {
@@ -136,12 +130,16 @@ const UsageScriptModal: React.FC<UsageScriptModalProps> = ({
             return `${planInfo} 剩余: ${plan.remaining} ${plan.unit}`;
           })
           .join(", ");
-        onNotify?.(`测试成功！${summary}`, "success", 3000);
+        toast.success(`测试成功！${summary}`, { duration: 3000 });
       } else {
-        onNotify?.(`测试失败: ${result.error || "无数据返回"}`, "error", 5000);
+        toast.error(`测试失败: ${result.error || "无数据返回"}`, {
+          duration: 5000,
+        });
       }
     } catch (error: any) {
-      onNotify?.(`测试失败: ${error?.message || "未知错误"}`, "error", 5000);
+      toast.error(`测试失败: ${error?.message || "未知错误"}`, {
+        duration: 5000,
+      });
     } finally {
       setTesting(false);
     }
@@ -158,9 +156,11 @@ const UsageScriptModal: React.FC<UsageScriptModalProps> = ({
         printWidth: 80,
       });
       setScript({ ...script, code: formatted.trim() });
-      onNotify?.("格式化成功", "success", 1000);
+      toast.success("格式化成功", { duration: 1000 });
     } catch (error: any) {
-      onNotify?.(`格式化失败: ${error?.message || "语法错误"}`, "error", 3000);
+      toast.error(`格式化失败: ${error?.message || "语法错误"}`, {
+        duration: 3000,
+      });
     }
   };
 

src/components/mcp/McpFormModal.tsx

@@ -1,5 +1,6 @@
 import React, { useMemo, useState, useEffect } from "react";
 import { useTranslation } from "react-i18next";
+import { toast } from "sonner";
 import {
   Save,
   AlertCircle,
@@ -36,11 +37,6 @@ interface McpFormModalProps {
   ) => Promise<void>;
   onClose: () => void;
   existingIds?: string[];
-  onNotify?: (
-    message: string,
-    type: "success" | "error",
-    duration?: number,
-  ) => void;
 }
 
 /**
@@ -55,7 +51,6 @@ const McpFormModal: React.FC<McpFormModalProps> = ({
   onSave,
   onClose,
   existingIds = [],
-  onNotify,
 }) => {
   const { t } = useTranslation();
   const { formatTomlError, validateTomlConfig, validateJsonConfig } =
@@ -278,7 +273,7 @@ const McpFormModal: React.FC<McpFormModalProps> = ({
   const handleSubmit = async () => {
     const trimmedId = formId.trim();
     if (!trimmedId) {
-      onNotify?.(t("mcp.error.idRequired"), "error", 3000);
+      toast.error(t("mcp.error.idRequired"), { duration: 3000 });
       return;
     }
 
@@ -296,7 +291,7 @@ const McpFormModal: React.FC<McpFormModalProps> = ({
       const tomlError = validateTomlConfig(formConfig);
       setConfigError(tomlError);
       if (tomlError) {
-        onNotify?.(t("mcp.error.tomlInvalid"), "error", 3000);
+        toast.error(t("mcp.error.tomlInvalid"), { duration: 3000 });
         return;
       }
 
@@ -313,7 +308,7 @@ const McpFormModal: React.FC<McpFormModalProps> = ({
         } catch (e: any) {
           const msg = e?.message || String(e);
           setConfigError(formatTomlError(msg));
-          onNotify?.(t("mcp.error.tomlInvalid"), "error", 4000);
+          toast.error(t("mcp.error.tomlInvalid"), { duration: 4000 });
           return;
         }
       }
@@ -322,7 +317,7 @@ const McpFormModal: React.FC<McpFormModalProps> = ({
       const jsonError = validateJsonConfig(formConfig);
       setConfigError(jsonError);
       if (jsonError) {
-        onNotify?.(t("mcp.error.jsonInvalid"), "error", 3000);
+        toast.error(t("mcp.error.jsonInvalid"), { duration: 3000 });
         return;
       }
 
@@ -338,7 +333,7 @@ const McpFormModal: React.FC<McpFormModalProps> = ({
           serverSpec = JSON.parse(formConfig) as McpServerSpec;
         } catch (e: any) {
           setConfigError(t("mcp.error.jsonInvalid"));
-          onNotify?.(t("mcp.error.jsonInvalid"), "error", 4000);
+          toast.error(t("mcp.error.jsonInvalid"), { duration: 4000 });
           return;
         }
       }
@@ -346,11 +341,11 @@ const McpFormModal: React.FC<McpFormModalProps> = ({
 
     // 前置必填校验
     if (serverSpec?.type === "stdio" && !serverSpec?.command?.trim()) {
-      onNotify?.(t("mcp.error.commandRequired"), "error", 3000);
+      toast.error(t("mcp.error.commandRequired"), { duration: 3000 });
       return;
     }
     if (serverSpec?.type === "http" && !serverSpec?.url?.trim()) {
-      onNotify?.(t("mcp.wizard.urlRequired"), "error", 3000);
+      toast.error(t("mcp.wizard.urlRequired"), { duration: 3000 });
       return;
     }
 
@@ -408,7 +403,7 @@ const McpFormModal: React.FC<McpFormModalProps> = ({
       const detail = extractErrorMessage(error);
       const mapped = translateMcpBackendError(detail, t);
       const msg = mapped || detail || t("mcp.error.saveFailed");
-      onNotify?.(msg, "error", mapped || detail ? 6000 : 4000);
+      toast.error(msg, { duration: mapped || detail ? 6000 : 4000 });
     } finally {
       setSaving(false);
     }
@@ -678,7 +673,6 @@ const McpFormModal: React.FC<McpFormModalProps> = ({
         isOpen={isWizardOpen}
         onClose={() => setIsWizardOpen(false)}
         onApply={handleWizardApply}
-        onNotify={onNotify}
         initialTitle={formId}
         initialServer={wizardInitialSpec}
       />

src/components/mcp/McpPanel.tsx

@@ -1,5 +1,6 @@
 import React, { useEffect, useMemo, useState } from "react";
 import { useTranslation } from "react-i18next";
+import { toast } from "sonner";
 import { Plus, Server, Check } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import {
@@ -13,16 +14,14 @@ import { McpServer } from "@/types";
 import McpListItem from "./McpListItem";
 import McpFormModal from "./McpFormModal";
 import { ConfirmDialog } from "../ConfirmDialog";
-import { extractErrorMessage, translateMcpBackendError } from "@/utils/errorUtils";
+import {
+  extractErrorMessage,
+  translateMcpBackendError,
+} from "@/utils/errorUtils";
 
 interface McpPanelProps {
   open: boolean;
   onOpenChange: (open: boolean) => void;
-  onNotify?: (
-    message: string,
-    type: "success" | "error",
-    duration?: number,
-  ) => void;
   appType: AppType;
 }
 
@@ -33,7 +32,6 @@ interface McpPanelProps {
 const McpPanel: React.FC<McpPanelProps> = ({
   open,
   onOpenChange,
-  onNotify,
   appType,
 }) => {
   const { t } = useTranslation();
@@ -91,20 +89,18 @@ const McpPanel: React.FC<McpPanelProps> = ({
     try {
       // 后台调用 API
       await mcpApi.setEnabled(appType, id, enabled);
-      onNotify?.(
+      toast.success(
         enabled ? t("mcp.msg.enabled") : t("mcp.msg.disabled"),
-        "success",
-        1500,
+        { duration: 1500 },
       );
     } catch (e: any) {
       // 失败时回滚
       setServers(previousServers);
       const detail = extractErrorMessage(e);
       const mapped = translateMcpBackendError(detail, t);
-      onNotify?.(
+      toast.error(
         mapped || detail || t("mcp.error.saveFailed"),
-        "error",
-        mapped || detail ? 6000 : 5000,
+        { duration: mapped || detail ? 6000 : 5000 },
       );
     }
   };
@@ -129,14 +125,13 @@ const McpPanel: React.FC<McpPanelProps> = ({
           await mcpApi.deleteServerInConfig(appType, id);
           await reload();
           setConfirmDialog(null);
-          onNotify?.(t("mcp.msg.deleted"), "success", 1500);
+          toast.success(t("mcp.msg.deleted"), { duration: 1500 });
         } catch (e: any) {
           const detail = extractErrorMessage(e);
           const mapped = translateMcpBackendError(detail, t);
-          onNotify?.(
+          toast.error(
             mapped || detail || t("mcp.error.deleteFailed"),
-            "error",
-            mapped || detail ? 6000 : 5000,
+            { duration: mapped || detail ? 6000 : 5000 },
           );
         }
       },
@@ -156,14 +151,13 @@ const McpPanel: React.FC<McpPanelProps> = ({
       await reload();
       setIsFormOpen(false);
       setEditingId(null);
-      onNotify?.(t("mcp.msg.saved"), "success", 1500);
+      toast.success(t("mcp.msg.saved"), { duration: 1500 });
     } catch (e: any) {
       const detail = extractErrorMessage(e);
       const mapped = translateMcpBackendError(detail, t);
-      onNotify?.(
+      toast.error(
         mapped || detail || t("mcp.error.saveFailed"),
-        "error",
-        mapped || detail ? 6000 : 5000,
+        { duration: mapped || detail ? 6000 : 5000 },
       );
       // 继续抛出错误，让表单层可以给到直观反馈（避免被更高层遮挡）
       throw e;
@@ -283,7 +277,6 @@ const McpPanel: React.FC<McpPanelProps> = ({
           existingIds={Object.keys(servers)}
           onSave={handleSave}
           onClose={handleCloseForm}
-          onNotify={onNotify}
         />
       )}
 

src/components/mcp/McpWizardModal.tsx

@@ -1,5 +1,6 @@
 import React, { useEffect, useState } from "react";
 import { useTranslation } from "react-i18next";
+import { toast } from "sonner";
 import { Save } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import {
@@ -15,11 +16,6 @@ interface McpWizardModalProps {
   isOpen: boolean;
   onClose: () => void;
   onApply: (title: string, json: string) => void;
-  onNotify?: (
-    message: string,
-    type: "success" | "error",
-    duration?: number,
-  ) => void;
   initialTitle?: string;
   initialServer?: McpServerSpec;
 }
@@ -80,7 +76,6 @@ const McpWizardModal: React.FC<McpWizardModalProps> = ({
   isOpen,
   onClose,
   onApply,
-  onNotify,
   initialTitle,
   initialServer,
 }) => {
@@ -137,15 +132,15 @@ const McpWizardModal: React.FC<McpWizardModalProps> = ({
 
   const handleApply = () => {
     if (!wizardTitle.trim()) {
-      onNotify?.(t("mcp.error.idRequired"), "error", 3000);
+      toast.error(t("mcp.error.idRequired"), { duration: 3000 });
       return;
     }
     if (wizardType === "stdio" && !wizardCommand.trim()) {
-      onNotify?.(t("mcp.error.commandRequired"), "error", 3000);
+      toast.error(t("mcp.error.commandRequired"), { duration: 3000 });
       return;
     }
     if (wizardType === "http" && !wizardUrl.trim()) {
-      onNotify?.(t("mcp.wizard.urlRequired"), "error", 3000);
+      toast.error(t("mcp.wizard.urlRequired"), { duration: 3000 });
       return;
     }
 

src/hooks/useProviderActions.ts

@@ -0,0 +1,147 @@
+import { useCallback } from "react";
+import { useQueryClient } from "@tanstack/react-query";
+import { toast } from "sonner";
+import { useTranslation } from "react-i18next";
+import { providersApi, settingsApi, type AppType } from "@/lib/api";
+import type { Provider, UsageScript } from "@/types";
+import {
+  useAddProviderMutation,
+  useUpdateProviderMutation,
+  useDeleteProviderMutation,
+  useSwitchProviderMutation,
+} from "@/lib/query";
+import { extractErrorMessage } from "@/utils/errorUtils";
+
+/**
+ * Hook for managing provider actions (add, update, delete, switch)
+ * Extracts business logic from App.tsx
+ */
+export function useProviderActions(activeApp: AppType) {
+  const { t } = useTranslation();
+  const queryClient = useQueryClient();
+
+  const addProviderMutation = useAddProviderMutation(activeApp);
+  const updateProviderMutation = useUpdateProviderMutation(activeApp);
+  const deleteProviderMutation = useDeleteProviderMutation(activeApp);
+  const switchProviderMutation = useSwitchProviderMutation(activeApp);
+
+  // Claude 插件同步逻辑
+  const syncClaudePlugin = useCallback(
+    async (provider: Provider) => {
+      if (activeApp !== "claude") return;
+
+      try {
+        const settings = await settingsApi.get();
+        if (!settings?.enableClaudePluginIntegration) {
+          return;
+        }
+
+        const isOfficial = provider.category === "official";
+        await settingsApi.applyClaudePluginConfig({ official: isOfficial });
+
+        toast.success(
+          isOfficial
+            ? t("notifications.appliedToClaudePlugin", {
+                defaultValue: "已同步为官方配置",
+              })
+            : t("notifications.removedFromClaudePlugin", {
+                defaultValue: "已移除 Claude 插件配置",
+              }),
+          { duration: 2200 },
+        );
+      } catch (error) {
+        const detail =
+          extractErrorMessage(error) ||
+          t("notifications.syncClaudePluginFailed", {
+            defaultValue: "同步 Claude 插件失败",
+          });
+        toast.error(detail, { duration: 4200 });
+      }
+    },
+    [activeApp, t],
+  );
+
+  // 添加供应商
+  const addProvider = useCallback(
+    async (provider: Omit<Provider, "id">) => {
+      await addProviderMutation.mutateAsync(provider);
+    },
+    [addProviderMutation],
+  );
+
+  // 更新供应商
+  const updateProvider = useCallback(
+    async (provider: Provider) => {
+      await updateProviderMutation.mutateAsync(provider);
+      await providersApi.updateTrayMenu();
+    },
+    [updateProviderMutation],
+  );
+
+  // 切换供应商
+  const switchProvider = useCallback(
+    async (provider: Provider) => {
+      try {
+        await switchProviderMutation.mutateAsync(provider.id);
+        await syncClaudePlugin(provider);
+      } catch {
+        // 错误提示由 mutation 与同步函数处理
+      }
+    },
+    [switchProviderMutation, syncClaudePlugin],
+  );
+
+  // 删除供应商
+  const deleteProvider = useCallback(
+    async (id: string) => {
+      await deleteProviderMutation.mutateAsync(id);
+    },
+    [deleteProviderMutation],
+  );
+
+  // 保存用量脚本
+  const saveUsageScript = useCallback(
+    async (provider: Provider, script: UsageScript) => {
+      try {
+        const updatedProvider: Provider = {
+          ...provider,
+          meta: {
+            ...provider.meta,
+            usage_script: script,
+          },
+        };
+
+        await providersApi.update(updatedProvider, activeApp);
+        await queryClient.invalidateQueries({
+          queryKey: ["providers", activeApp],
+        });
+        toast.success(
+          t("provider.usageSaved", {
+            defaultValue: "用量查询配置已保存",
+          }),
+        );
+      } catch (error) {
+        const detail =
+          extractErrorMessage(error) ||
+          t("provider.usageSaveFailed", {
+            defaultValue: "用量查询配置保存失败",
+          });
+        toast.error(detail);
+      }
+    },
+    [activeApp, queryClient, t],
+  );
+
+  return {
+    addProvider,
+    updateProvider,
+    switchProvider,
+    deleteProvider,
+    saveUsageScript,
+    isLoading:
+      addProviderMutation.isPending ||
+      updateProviderMutation.isPending ||
+      deleteProviderMutation.isPending ||
+      switchProviderMutation.isPending,
+  };
+}