Extend Chinese localization coverage to Host Manager components

- Added comprehensive translations for HostManagerHostViewer component
- Localized all host management UI text including import/export features
- Translated error messages and confirmation dialogs for host operations
- Added translations for HostManagerHostEditor validation messages
- Localized connection details, organization settings, and form labels
- Fixed syntax error in FileManagerOperations component
- Achieved near-complete localization of SSH host management interface
- Updated placeholders and tooltips for better user guidance

Co-Authored-By: Claude <noreply@anthropic.com>

public/locales/en/translation.json

@@ -100,6 +100,40 @@
   },
   "hosts": {
     "title": "Host Manager",
+    "sshHosts": "SSH Hosts",
+    "noHosts": "No SSH Hosts",
+    "noHostsMessage": "You haven't added any SSH hosts yet. Click \"Add Host\" to get started.",
+    "loadingHosts": "Loading hosts...",
+    "failedToLoadHosts": "Failed to load hosts",
+    "retry": "Retry",
+    "refresh": "Refresh",
+    "hostsCount": "{{count}} hosts",
+    "importJson": "Import JSON",
+    "importing": "Importing...",
+    "importJsonTitle": "Import SSH Hosts from JSON",
+    "importJsonDesc": "Upload a JSON file to bulk import multiple SSH hosts (max 100).",
+    "downloadSample": "Download Sample",
+    "formatGuide": "Format Guide",
+    "uncategorized": "Uncategorized",
+    "confirmDelete": "Are you sure you want to delete \"{{name}}\"?",
+    "failedToDeleteHost": "Failed to delete host",
+    "jsonMustContainHosts": "JSON must contain a \"hosts\" array or be an array of hosts",
+    "noHostsInJson": "No hosts found in JSON file",
+    "maxHostsAllowed": "Maximum 100 hosts allowed per import",
+    "importCompleted": "Import completed: {{success}} successful, {{failed}} failed",
+    "importFailed": "Import failed",
+    "importError": "Import error",
+    "failedToImportJson": "Failed to import JSON file",
+    "connectionDetails": "Connection Details",
+    "organization": "Organization",
+    "ipAddress": "IP Address",
+    "port": "Port",
+    "hostName": "Host Name",
+    "folder": "Folder",
+    "tags": "Tags",
+    "passwordRequired": "Password is required when using password authentication",
+    "sshKeyRequired": "SSH Private Key is required when using key authentication",
+    "keyTypeRequired": "Key Type is required when using key authentication",
     "addHost": "Add Host",
     "editHost": "Edit Host",
     "deleteHost": "Delete Host",