feat: SSH tunnel support

- Add ssh2 dependency for SSH port forwarding
- NewConnectionDialog: SSH toggle + host/port/user/password/privateKey/passphrase form
- connection.ts: createSshTunnel() with local port forwarding
- Connect ioredis through SSH tunnel when sshEnabled
- Clean up SSH client + tunnel server on disconnect
- i18n keys for all SSH fields (zh-CN + en)
- Add sshPassphrase to all ConnectionConfig types

src/stores/connection.ts

@@ -19,6 +19,7 @@ export interface ConnectionConfig {
   sshUsername: string
   sshPassword: string
   sshPrivateKeyPath: string
+  sshPassphrase: string
   cluster: boolean
   sentinelMasterName: string
   separator: string
@@ -82,6 +83,13 @@ export const useConnectionStore = defineStore('connection', () => {
         password: auth || undefined,
         username: conn.username || undefined,
         tls: conn.tls,
+        sshEnabled: conn.sshEnabled,
+        sshHost: conn.sshHost,
+        sshPort: conn.sshPort,
+        sshUsername: conn.sshUsername,
+        sshPassword: conn.sshPassword,
+        sshPrivateKeyPath: conn.sshPrivateKeyPath,
+        sshPassphrase: conn.sshPassphrase,
       })
       if (result.success) {
         activeId.value = conn.id
@@ -143,6 +151,8 @@ export const useConnectionStore = defineStore('connection', () => {
 
   async function testConnection(opts: {
     host: string; port: number; auth?: string; username?: string; tls?: boolean
+    sshEnabled?: boolean; sshHost?: string; sshPort?: number; sshUsername?: string
+    sshPassword?: string; sshPrivateKeyPath?: string; sshPassphrase?: string
   }): Promise<{ success: boolean; error?: string }> {
     if (!window.electronAPI) {
       return { success: false, error: 'Electron API not ready' }
@@ -155,6 +165,13 @@ export const useConnectionStore = defineStore('connection', () => {
         password: opts.auth || undefined,
         username: opts.username || undefined,
         tls: opts.tls,
+        sshEnabled: opts.sshEnabled,
+        sshHost: opts.sshHost,
+        sshPort: opts.sshPort,
+        sshUsername: opts.sshUsername,
+        sshPassword: opts.sshPassword,
+        sshPrivateKeyPath: opts.sshPrivateKeyPath,
+        sshPassphrase: opts.sshPassphrase,
       })
       if (result.success) {
         await window.electronAPI.redis.disconnect(testId)