feat: add proxy import flow

frontend/src/i18n/locales/en.ts

@@ -165,6 +165,7 @@ export default {
     selectedCount: '({count} selected)',
     refresh: 'Refresh',
     settings: 'Settings',
+    chooseFile: 'Choose File',
     notAvailable: 'N/A',
     now: 'Now',
     unknown: 'Unknown',
@@ -1190,7 +1191,7 @@ export default {
       syncFromCrs: 'Sync from CRS',
       dataExport: 'Export',
       dataExportSelected: 'Export Selected',
-      dataExportIncludeProxies: 'Include proxies (unchecked = no proxy linkage on import)',
+      dataExportIncludeProxies: 'Include proxies linked to the exported accounts',
       dataImport: 'Import',
       dataExportConfirmMessage: 'The exported data contains sensitive account and proxy information. Store it securely.',
       dataExportConfirm: 'Confirm Export',
@@ -1198,7 +1199,7 @@ export default {
       dataExportFailed: 'Failed to export data',
       dataImportTitle: 'Import Data',
       dataImportHint: 'Upload the exported JSON file to import accounts and proxies.',
-      dataImportWarning: 'Import will create new accounts/proxies; groups must be bound manually. Ensure no conflicts in the target instance.',
+      dataImportWarning: 'Import will create new accounts/proxies; groups must be bound manually. Ensure existing data does not conflict.',
       dataImportFile: 'Data file',
       dataImportButton: 'Start Import',
       dataImporting: 'Importing...',
@@ -1901,6 +1902,21 @@ export default {
       createProxy: 'Create Proxy',
       editProxy: 'Edit Proxy',
       deleteProxy: 'Delete Proxy',
+      dataImport: 'Import',
+      dataImportTitle: 'Import Proxies',
+      dataImportHint: 'Upload the exported proxy JSON file to import proxies in bulk.',
+      dataImportWarning: 'Import will create or reuse proxies, keep their status, and trigger latency checks after completion.',
+      dataImportFile: 'Data File',
+      dataImportButton: 'Start Import',
+      dataImporting: 'Importing...',
+      dataImportSelectFile: 'Please select a data file',
+      dataImportParseFailed: 'Failed to parse data',
+      dataImportFailed: 'Failed to import data',
+      dataImportResult: 'Import Result',
+      dataImportResultSummary: 'Created {proxy_created}, reused {proxy_reused}, failed {proxy_failed}',
+      dataImportErrors: 'Failure Details',
+      dataImportSuccess: 'Import completed: created {proxy_created}, reused {proxy_reused}',
+      dataImportCompletedWithErrors: 'Import completed with errors: failed {proxy_failed}',
       dataExport: 'Export',
       dataExportConfirmMessage: 'The exported data contains sensitive proxy information. Store it securely.',
       dataExportConfirm: 'Confirm Export',

frontend/src/i18n/locales/zh.ts

@@ -162,6 +162,7 @@ export default {
     selectedCount: '（已选 {count} 个）',
     refresh: '刷新',
     settings: '设置',
+    chooseFile: '选择文件',
     notAvailable: '不可用',
     now: '现在',
     unknown: '未知',
@@ -1275,7 +1276,7 @@ export default {
       syncFromCrs: '从 CRS 同步',
       dataExport: '导出',
       dataExportSelected: '导出选中',
-      dataExportIncludeProxies: '导出代理（取消后导入时不关联代理）',
+      dataExportIncludeProxies: '导出代理（导出账号关联的代理）',
       dataImport: '导入',
       dataExportConfirmMessage: '导出的数据包含账号与代理的敏感信息，请妥善保存。',
       dataExportConfirm: '确认导出',
@@ -1283,7 +1284,7 @@ export default {
       dataExportFailed: '数据导出失败',
       dataImportTitle: '导入数据',
       dataImportHint: '上传导出的 JSON 文件以批量导入账号与代理。',
-      dataImportWarning: '导入将创建新账号与代理，分组需手工绑定；请确认目标实例已有数据不会冲突。',
+      dataImportWarning: '导入将创建新账号与代理，分组需手工绑定；请确认已有数据不会冲突。',
       dataImportFile: '数据文件',
       dataImportButton: '开始导入',
       dataImporting: '导入中...',
@@ -2010,6 +2011,21 @@ export default {
       deleteProxy: '删除代理',
       deleteConfirmMessage: "确定要删除代理 '{name}' 吗？",
       testProxy: '测试代理',
+      dataImport: '导入',
+      dataImportTitle: '导入代理',
+      dataImportHint: '上传代理导出的 JSON 文件以批量导入代理。',
+      dataImportWarning: '导入将创建或复用代理，保留状态并在完成后自动触发延迟检测。',
+      dataImportFile: '数据文件',
+      dataImportButton: '开始导入',
+      dataImporting: '导入中...',
+      dataImportSelectFile: '请选择数据文件',
+      dataImportParseFailed: '数据解析失败',
+      dataImportFailed: '数据导入失败',
+      dataImportResult: '导入结果',
+      dataImportResultSummary: '创建 {proxy_created}，复用 {proxy_reused}，失败 {proxy_failed}',
+      dataImportErrors: '失败详情',
+      dataImportSuccess: '导入完成：创建 {proxy_created}，复用 {proxy_reused}',
+      dataImportCompletedWithErrors: '导入完成但有错误：失败 {proxy_failed}',
       dataExport: '导出',
       dataExportConfirmMessage: '导出的数据包含代理的敏感信息，请妥善保存。',
       dataExportConfirm: '确认导出',