添加配置文件浏览选择功能

- 在主进程添加文件选择对话框，支持选择 settings.json 配置文件
- 更新类型定义和预加载脚本，添加 selectConfigFile API
- 在界面底部配置路径区域添加"浏览"按钮
- 优化样式布局，使配置路径和浏览按钮水平排列
- 修复 React 导入警告，移除未使用的 React 导入

src/main/index.ts

@@ -1,4 +1,4 @@
-import { app, BrowserWindow, ipcMain } from 'electron'
+import { app, BrowserWindow, ipcMain, dialog } from 'electron'
 import path from 'path'
 import Store from 'electron-store'
 import { Provider, AppConfig } from '../shared/types'
@@ -99,3 +99,23 @@ ipcMain.handle('switchProvider', async (_, providerId: string) => {
 ipcMain.handle('getClaudeCodeConfigPath', () => {
   return getClaudeCodeConfig().path
 })
+
+ipcMain.handle('selectConfigFile', async () => {
+  if (!mainWindow) return null
+  
+  const result = await dialog.showOpenDialog(mainWindow, {
+    properties: ['openFile'],
+    title: '选择 Claude Code 配置文件',
+    filters: [
+      { name: 'JSON 文件', extensions: ['json'] },
+      { name: '所有文件', extensions: ['*'] }
+    ],
+    defaultPath: 'settings.json'
+  })
+  
+  if (result.canceled || result.filePaths.length === 0) {
+    return null
+  }
+  
+  return result.filePaths[0]
+})

src/main/preload.ts

@@ -9,5 +9,6 @@ contextBridge.exposeInMainWorld('electronAPI', {
   updateProvider: (provider: Provider) => ipcRenderer.invoke('updateProvider', provider),
   checkStatus: (provider: Provider) => ipcRenderer.invoke('checkStatus', provider),
   switchProvider: (providerId: string) => ipcRenderer.invoke('switchProvider', providerId),
-  getClaudeCodeConfigPath: () => ipcRenderer.invoke('getClaudeCodeConfigPath')
+  getClaudeCodeConfigPath: () => ipcRenderer.invoke('getClaudeCodeConfigPath'),
+  selectConfigFile: () => ipcRenderer.invoke('selectConfigFile')
 })

src/renderer/App.css

@@ -69,4 +69,23 @@
   border-radius: 4px;
   font-size: 0.9rem;
   color: #7f8c8d;
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+}
+
+.browse-btn {
+  padding: 0.5rem 1rem;
+  border: none;
+  border-radius: 4px;
+  background: #3498db;
+  color: white;
+  cursor: pointer;
+  font-size: 0.9rem;
+  transition: all 0.2s;
+  margin-left: 1rem;
+}
+
+.browse-btn:hover {
+  background: #2980b9;
 }

src/renderer/App.tsx

@@ -1,4 +1,4 @@
-import React, { useState, useEffect } from 'react'
+import { useState, useEffect } from 'react'
 import { Provider, ProviderStatus } from '../shared/types'
 import ProviderList from './components/ProviderList'
 import AddProviderModal from './components/AddProviderModal'
@@ -99,6 +99,13 @@ function App() {
     }
   }
 
+  const handleSelectConfigFile = async () => {
+    const selectedPath = await window.electronAPI.selectConfigFile()
+    if (selectedPath) {
+      setConfigPath(selectedPath)
+    }
+  }
+
   return (
     <div className="app">
       <header className="app-header">
@@ -133,7 +140,14 @@ function App() {
         
         {configPath && (
           <div className="config-path">
-            配置文件位置: {configPath}
+            <span>配置文件位置: {configPath}</span>
+            <button 
+              className="browse-btn" 
+              onClick={handleSelectConfigFile}
+              title="浏览选择配置文件"
+            >
+              浏览
+            </button>
           </div>
         )}
       </main>

src/shared/types.ts

@@ -29,6 +29,7 @@ declare global {
       checkStatus: (provider: Provider) => Promise<ProviderStatus>
       switchProvider: (providerId: string) => Promise<boolean>
       getClaudeCodeConfigPath: () => Promise<string>
+      selectConfigFile: () => Promise<string | null>
     }
   }
 }