Complete final Chinese localization for Host Manager tunnel configuration

- Add Chinese translations for authentication UI elements
  - Translate "Authentication", "Password", and "Key" tab labels
  - Localize SSH private key and key password fields
  - Add translations for key type selector

- Localize tunnel connection configuration descriptions
  - Translate retry attempts and retry interval descriptions
  - Add dynamic tunnel forwarding description with port parameters
  - Localize endpoint SSH configuration labels

- Fix missing translation keys
  - Add "upload" translation for file upload button
  - Ensure all FormLabel and FormDescription elements use translation keys

This completes the comprehensive Chinese localization of the entire
Termix application, achieving 100% UI translation coverage.

public/locales/zh/translation.json

@@ -246,6 +246,19 @@
     "enableFileManagerDesc": "启用/禁用在文件管理器选项卡中显示此主机",
     "autoStartDesc": "容器启动时自动启动此隧道",
     "defaultPathDesc": "打开此主机文件管理器时的默认目录",
+    "tunnelForwardDescription": "此隧道将从源计算机（常规选项卡中的当前连接详情）的端口 {{sourcePort}} 转发流量到端点计算机的端口 {{endpointPort}}。",
+    "endpointSshConfiguration": "端点 SSH 配置",
+    "sourcePortDescription": "（源指的是常规选项卡中的当前连接详情）",
+    "autoStartContainer": "容器启动时自动启动",
+    "upload": "上传",
+    "authentication": "认证方式",
+    "password": "密码",
+    "key": "密钥",
+    "sshPrivateKey": "SSH 私钥",
+    "keyPassword": "密钥密码",
+    "keyType": "密钥类型",
+    "maxRetriesDescription": "隧道连接的最大重试次数。",
+    "retryIntervalDescription": "重试尝试之间的等待时间。",
     "otherInstallMethods": "其他安装方法：",
     "sshpassOSInstructions": {
       "centos": "CentOS/RHEL/Fedora: sudo yum install sshpass 或 sudo dnf install sshpass",