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

package.json

@@ -8,7 +8,9 @@
   "type": "module",
   "allowScripts": {
     "electron": true,
-    "esbuild": true
+    "esbuild": true,
+    "ssh2@1.17.0": true,
+    "cpu-features@0.0.10": true
   },
   "scripts": {
     "dev": "electron-vite dev",
@@ -59,10 +61,12 @@
   "dependencies": {
     "electron-store": "^11.0.2",
     "ioredis": "^5.7.0",
-    "pinia": "^3.0.4"
+    "pinia": "^3.0.4",
+    "ssh2": "^1.17.0"
   },
   "devDependencies": {
     "@element-plus/icons-vue": "^2.3.1",
+    "@types/ssh2": "^1.15.5",
     "@vitejs/plugin-vue": "^5.2.0",
     "electron": "^43.0.0",
     "electron-builder": "^26.15.3",