chore(i18n): add new localization strings for jump host functionality

- Introduced new keys for detecting jump host cycles and displaying jump host chains in both English and Chinese locales.
- Enhanced user feedback for missing jump hosts and potential loop scenarios in proxy configurations.

src/i18n/locales/en.json

@@ -320,6 +320,7 @@
     "privateKeyRequired": "Select a key",
     "proxyJump": "Jump Host",
     "proxyJumpAlreadyConfigured": "Already uses a jump host",
+    "proxyJumpCycleDetected": "Would create a jump loop",
     "proxyJumpSshOnly": "SSH only",
     "proxySelect": "Proxy",
     "quickConnectLocal": "Quick Connect",
@@ -937,6 +938,9 @@
     "importSelectSource": "Select import source",
     "importSessions": "Import",
     "importSuccess": "Imported {{count}} sessions",
+    "jumpHostChain": "Jump chain",
+    "jumpHostCycle": "Loop detected",
+    "jumpHostMissing": "Missing jump host",
     "newConnection": "New Conn.",
     "newFolder": "New Folder",
     "newSubfolder": "New Subfolder",

src/i18n/locales/zh-CN.json

@@ -320,6 +320,7 @@
     "privateKeyRequired": "请选择私钥",
     "proxyJump": "跳板机",
     "proxyJumpAlreadyConfigured": "该连接已配置跳板机，不能再作为跳板机",
+    "proxyJumpCycleDetected": "会形成跳板机循环",
     "proxyJumpSshOnly": "仅显示 SSH 连接",
     "proxySelect": "代理",
     "quickConnectLocal": "快速连接 (不保存)",
@@ -937,6 +938,9 @@
     "importSelectSource": "请选择要导入的配置来源",
     "importSessions": "导入配置",
     "importSuccess": "成功导入 {{count}} 个会话",
+    "jumpHostChain": "跳板链路",
+    "jumpHostCycle": "检测到循环",
+    "jumpHostMissing": "跳板机已缺失",
     "newConnection": "新建连接",
     "newFolder": "新建文件夹",
     "newSubfolder": "新建子文件夹",