feat: v0.3.0 版本 - SSH终端、SFTP、端口转发功能实现

核心功能:
- SSH终端: 密码/密钥认证、XTerm.js终端、多主题配色、IP高亮
- SFTP管理: 双栏文件管理、上传下载、传输队列
- 端口转发: 本地/远程转发、SOCKS5动态代理、规则管理

架构改进:
- 拆分大型组件 (SFTPView/TabBar/Sidebar)
- 添加统一日志和错误处理
- 修复React严格模式下的终端黑屏问题

UI更新:
- 新增端口转发视图
- 更新UI预览文档
- 左侧栏右键菜单支持SFTP快捷打开

electron/ipc/file.ipc.ts

@@ -0,0 +1,161 @@
+/**
+ * File IPC Handlers
+ * 处理本地文件操作和远程文件读写
+ */
+
+import { ipcMain, IpcMainInvokeEvent, app } from 'electron'
+import fs from 'fs'
+import path from 'path'
+
+// IPC channel names
+export const FILE_CHANNELS = {
+  // Remote file operations (for zmodem)
+  READ: 'file:read',
+  WRITE: 'file:write',
+  // Local file system operations
+  LOCAL_GET_HOME: 'local:getHome',
+  LOCAL_READ_DIR: 'local:readDir',
+  LOCAL_GET_STATS: 'local:getStats',
+  LOCAL_DELETE: 'local:delete',
+  LOCAL_RENAME: 'local:rename',
+  LOCAL_MKDIR: 'local:mkdir',
+} as const
+
+export function registerFileIPCHandlers(): void {
+  // Read file (for rz)
+  ipcMain.handle(FILE_CHANNELS.READ, async (_event: IpcMainInvokeEvent, filePath: string) => {
+    try {
+      const data = fs.readFileSync(filePath)
+      return { success: true, data: data.toString('base64') }
+    } catch (error: any) {
+      return { success: false, error: error.message }
+    }
+  })
+
+  // Write file (for sz)
+  ipcMain.handle(FILE_CHANNELS.WRITE, async (_event: IpcMainInvokeEvent, filePath: string, data: string) => {
+    try {
+      const buffer = Buffer.from(data, 'base64')
+      fs.writeFileSync(filePath, buffer)
+      return { success: true }
+    } catch (error: any) {
+      return { success: false, error: error.message }
+    }
+  })
+
+  // Get user home directory
+  ipcMain.handle(FILE_CHANNELS.LOCAL_GET_HOME, async () => {
+    try {
+      const homePath = app.getPath('home')
+      return { success: true, path: homePath }
+    } catch (error: any) {
+      return { success: false, error: error.message }
+    }
+  })
+
+  // Read directory contents
+  ipcMain.handle(FILE_CHANNELS.LOCAL_READ_DIR, async (_event: IpcMainInvokeEvent, dirPath: string) => {
+    try {
+      const entries = fs.readdirSync(dirPath, { withFileTypes: true })
+      const files = entries.map((entry) => {
+        const fullPath = path.join(dirPath, entry.name)
+        let stats: fs.Stats | null = null
+        try {
+          stats = fs.lstatSync(fullPath)
+        } catch {
+          // Skip files we can't stat
+        }
+
+        return {
+          name: entry.name,
+          path: fullPath,
+          type: entry.isDirectory() ? 'directory' : entry.isSymbolicLink() ? 'symlink' : 'file',
+          size: stats?.size || 0,
+          modified: stats?.mtime ? Math.floor(stats.mtime.getTime() / 1000) : 0,
+          permissions: formatPermissions(stats?.mode || 0),
+        }
+      })
+
+      // Sort: directories first, then by name
+      files.sort((a, b) => {
+        if (a.type !== 'file' && b.type === 'file') return -1
+        if (a.type === 'file' && b.type !== 'file') return 1
+        return a.name.localeCompare(b.name)
+      })
+
+      return { success: true, files }
+    } catch (error: any) {
+      return { success: false, error: error.message }
+    }
+  })
+
+  // Get file stats
+  ipcMain.handle(FILE_CHANNELS.LOCAL_GET_STATS, async (_event: IpcMainInvokeEvent, filePath: string) => {
+    try {
+      const stats = fs.lstatSync(filePath)
+      return {
+        success: true,
+        stats: {
+          name: path.basename(filePath),
+          path: filePath,
+          type: stats.isDirectory() ? 'directory' : stats.isSymbolicLink() ? 'symlink' : 'file',
+          size: stats.size,
+          modified: Math.floor(stats.mtime.getTime() / 1000),
+          permissions: formatPermissions(stats.mode),
+        },
+      }
+    } catch (error: any) {
+      return { success: false, error: error.message }
+    }
+  })
+
+  // Delete file or directory
+  ipcMain.handle(FILE_CHANNELS.LOCAL_DELETE, async (_event: IpcMainInvokeEvent, filePath: string) => {
+    try {
+      const stats = fs.lstatSync(filePath)
+      if (stats.isDirectory()) {
+        fs.rmSync(filePath, { recursive: true, force: true })
+      } else {
+        fs.unlinkSync(filePath)
+      }
+      return { success: true }
+    } catch (error: any) {
+      return { success: false, error: error.message }
+    }
+  })
+
+  // Rename file or directory
+  ipcMain.handle(FILE_CHANNELS.LOCAL_RENAME, async (_event: IpcMainInvokeEvent, oldPath: string, newPath: string) => {
+    try {
+      fs.renameSync(oldPath, newPath)
+      return { success: true }
+    } catch (error: any) {
+      return { success: false, error: error.message }
+    }
+  })
+
+  // Create directory
+  ipcMain.handle(FILE_CHANNELS.LOCAL_MKDIR, async (_event: IpcMainInvokeEvent, dirPath: string) => {
+    try {
+      fs.mkdirSync(dirPath, { recursive: true })
+      return { success: true }
+    } catch (error: any) {
+      return { success: false, error: error.message }
+    }
+  })
+}
+
+// Helper function to format Unix permissions
+function formatPermissions(mode: number): string {
+  const perms: string[] = []
+  const types = ['---', '--x', '-w-', '-wx', 'r--', 'r-x', 'rw-', 'rwx']
+
+  // Owner
+  perms.push(types[(mode >> 6) & 7])
+  // Group
+  perms.push(types[(mode >> 3) & 7])
+  // Other
+  perms.push(types[mode & 7])
+
+  return perms.join('')
+}