feat(providers): expand OAuth account management

Add Claude Code manual and cookie authorization, including redacted batch tasks. Harden OAuth imports, duplicate replacement, provider dialogs, and related account-management tests.

frontend/src/i18n/messages.ts

@@ -1401,7 +1401,7 @@ const legacyExactEnglishMessages: Record<string, string> = {
   '例如: OpenAI 主账号': 'Example: OpenAI primary account',
   '提供商类型': 'Provider type',
   '请选择': 'Select',
-  'ClaudeCode（暂不可用）': 'ClaudeCode (temporarily unavailable)',
+  'Claude Code（实验性功能）': 'Claude Code (experimental feature)',
   '反代使用固定端点且不可修改': 'Reverse proxy providers use fixed endpoints that cannot be modified.',
   '主站链接': 'Website URL',
   'https://example.com（可选）': 'https://example.com (optional)',
@@ -1427,7 +1427,6 @@ const legacyExactEnglishMessages: Record<string, string> = {
   '启用后仅对 Kiro 请求模拟 prompt cache 读写计量。': 'When enabled, only Kiro requests simulate prompt cache read/write accounting.',
   '请前往模块管理-敏感信息保护中配置详细规则。': 'Configure detailed rules in Modules - Sensitive information protection.',
   '验证失败': 'Validation failed',
-  'ClaudeCode 提供商类型暂时禁用': 'ClaudeCode provider type is temporarily disabled',
   '月卡类型必须设置周期开始时间': 'Monthly quota billing requires a cycle start time',
   '周期开始时间必须是合法时间': 'Cycle start time must be a valid time',
   '过期时间必须是合法时间': 'Expiration time must be a valid time',
@@ -1585,6 +1584,14 @@ const legacyExactEnglishMessages: Record<string, string> = {
   '添加账号': 'Add account',
   '授权': 'Authorization',
   '获取授权': 'Authorize',
+  'Cookie授权': 'Cookie authorization',
+  'Claude sessionKey Cookie': 'Claude sessionKey cookie',
+  '粘贴 sessionKey Cookie 值或完整 Cookie 请求头': 'Paste a sessionKey cookie value or a complete Cookie header',
+  '每行粘贴一个 sessionKey Cookie 值或完整 Cookie 请求头，最多 20 个': 'Paste one sessionKey cookie value or complete Cookie header per line, up to 20',
+  '每行一个，最多 20 个': 'One per line, up to 20',
+  '批量授权': 'Batch authorize',
+  'Cookie 授权失败': 'Cookie authorization failed',
+  '授权中...': 'Authorizing...',
   '浏览器登录': 'Browser sign-in',
   '设备授权': 'Device authorization',
   '导入授权': 'Import authorization',
@@ -1612,6 +1619,8 @@ const legacyExactEnglishMessages: Record<string, string> = {
   '打开': 'Open',
   '开始': 'Start',
   '粘贴回调 URL': 'Paste callback URL',
+  '粘贴回调 URL 或授权码': 'Paste callback URL or authorization code',
+  '粘贴完整回调 URL 或授权码（code#state）': 'Paste the full callback URL or authorization code (code#state)',
   '粘贴回调 URL 或 token': 'Paste callback URL or token',
   '粘贴包含 token=...&state=... 的回调 URL；session token/apiKey 也可直接粘贴，普通 token 请用导入授权': 'Paste a callback URL containing token=...&state=...; session token/apiKey can also be pasted directly. Use import authorization for regular tokens.',
   '在浏览器中完成授权': 'Complete authorization in the browser',
@@ -1633,6 +1642,7 @@ const legacyExactEnglishMessages: Record<string, string> = {
   '支持 .json / .txt，可多选': 'Supports .json / .txt and multiple selection',
   '粘贴 Grok sso/session token，支持每行一个；或粘贴包含 token、sso_token、access_token、plan_type、pool_tier 的 JSON': 'Paste Grok sso/session tokens, one per line, or paste JSON containing token, sso_token, access_token, plan_type, and pool_tier.',
   '粘贴 show-auth-token Token、API key 或 JSON 内容': 'Paste a show-auth-token token, API key, or JSON content',
+  '粘贴 Claude Refresh Token 或 Claude Code .credentials.json 内容': 'Paste a Claude refresh token or Claude Code .credentials.json',
   '粘贴 Refresh Token / Access Token / Agent Identity JSON 内容': 'Paste a Refresh Token, Access Token, or Agent Identity JSON',
   'plan_type / pool_tier 会作为账号套餐与能力特征保存，不是路由池选择。': 'plan_type / pool_tier are saved as account plan and capability traits, not as routing pool selection.',
   '或手动粘贴 Grok Token': 'Or manually paste a Grok token',