fix(i18n): 补充页面缺失的中英文翻译并修复登录重定向循环

- 补充 login/signup/dictionary/srt-player/alphabet 页面的翻译
- 修复登录页面邮箱登录时 password 参数错误
- 修复登录/注册页面的无限重定向循环问题
- 调整登录/注册卡片宽度为 w-96

messages/en-US.json

@@ -1,6 +1,7 @@
 {
   "alphabet": {
     "chooseCharacters": "Please select the characters you want to learn",
+    "chooseAlphabetHint": "Select an alphabet to start learning",
     "japanese": "Japanese Kana",
     "english": "English Alphabet",
     "uyghur": "Uyghur Alphabet",
@@ -14,7 +15,11 @@
     "roman": "Romanization",
     "letter": "Letter",
     "random": "Random Mode",
-    "randomNext": "Random Next"
+    "randomNext": "Random Next",
+    "previousLetter": "Previous letter",
+    "nextLetter": "Next letter",
+    "keyboardHint": "Use left/right arrow keys or space for random, ESC to go back",
+    "swipeHint": "Use left/right arrow keys or swipe to navigate, ESC to go back"
   },
   "folders": {
     "title": "Folders",
@@ -107,7 +112,8 @@
     }
   },
   "auth": {
-    "title": "Authentication",
+    "title": "Sign In",
+    "signUpTitle": "Sign Up",
     "signIn": "Sign In",
     "signUp": "Sign Up",
     "email": "Email",
@@ -133,7 +139,18 @@
     "identifierRequired": "Please enter your email or username",
     "passwordRequired": "Please enter your password",
     "confirmPasswordRequired": "Please confirm your password",
-    "loading": "Loading..."
+    "loading": "Loading...",
+    "confirm": "Confirm",
+    "noAccountLink": "Don't have an account? Sign up",
+    "hasAccountLink": "Already have an account? Sign in",
+    "usernamePlaceholder": "Username",
+    "emailPlaceholder": "Email address",
+    "passwordPlaceholder": "Password",
+    "usernameOrEmailPlaceholder": "Username or email",
+    "loginFailed": "Login failed",
+    "signUpFailed": "Sign up failed",
+    "fillAllFields": "Please fill in all fields",
+    "enterCredentials": "Please enter username and password"
   },
   "memorize": {
     "folder_selector": {
@@ -187,11 +204,17 @@
     "uploaded": "Uploaded",
     "notUploaded": "Not Uploaded",
     "upload": "Upload",
+    "uploadVideoButton": "Upload Video",
+    "uploadSubtitleButton": "Upload Subtitle",
+    "subtitleUploaded": "Subtitle Uploaded ({count} entries)",
+    "subtitleNotUploaded": "Subtitle Not Uploaded",
     "autoPauseStatus": "Auto Pause: {enabled}",
     "on": "On",
     "off": "Off",
     "videoUploadFailed": "Video upload failed",
-    "subtitleUploadFailed": "Subtitle upload failed"
+    "subtitleUploadFailed": "Subtitle upload failed",
+    "subtitleLoadSuccess": "Subtitle loaded successfully",
+    "subtitleLoadFailed": "Subtitle load failed"
   },
   "text_speaker": {
     "generateIPA": "Generate IPA",
@@ -256,7 +279,9 @@
     "pleaseLogin": "Please log in first",
     "pleaseCreateFolder": "Please create a folder first",
     "savedToFolder": "Saved to folder: {folderName}",
-    "saveFailed": "Save failed, please try again later"
+    "saveFailed": "Save failed, please try again later",
+    "definition": "Definition",
+    "example": "Example"
   },
   "explore": {
     "title": "Explore",
@@ -291,6 +316,7 @@
     "displayName": "Display Name",
     "notSet": "Not Set",
     "memberSince": "Member Since",
+    "logout": "Logout",
     "folders": {
       "title": "Folders",
       "noFolders": "No folders yet",

messages/zh-CN.json

@@ -1,6 +1,7 @@
 {
   "alphabet": {
     "chooseCharacters": "请选择您想学习的字符",
+    "chooseAlphabetHint": "选择一种语言的字母表开始学习",
     "japanese": "日语假名",
     "english": "英文字母",
     "uyghur": "维吾尔字母",
@@ -14,7 +15,11 @@
     "roman": "罗马音",
     "letter": "字母",
     "random": "随机模式",
-    "randomNext": "随机下一个"
+    "randomNext": "随机下一个",
+    "previousLetter": "上一个字母",
+    "nextLetter": "下一个字母",
+    "keyboardHint": "使用左右箭头键或空格键随机切换，ESC键返回",
+    "swipeHint": "使用左右箭头键或滑动切换字母"
   },
   "folders": {
     "title": "文件夹",
@@ -108,6 +113,7 @@
   },
   "auth": {
     "title": "登录",
+    "signUpTitle": "注册",
     "signIn": "登录",
     "signUp": "注册",
     "email": "邮箱",
@@ -133,7 +139,18 @@
     "identifierRequired": "请输入邮箱或用户名",
     "passwordRequired": "请输入密码",
     "confirmPasswordRequired": "请确认密码",
-    "loading": "加载中..."
+    "loading": "加载中...",
+    "confirm": "确认",
+    "noAccountLink": "没有账号？去注册",
+    "hasAccountLink": "已有账号？去登录",
+    "usernamePlaceholder": "用户名",
+    "emailPlaceholder": "邮箱地址",
+    "passwordPlaceholder": "密码",
+    "usernameOrEmailPlaceholder": "用户名或邮箱地址",
+    "loginFailed": "登录失败",
+    "signUpFailed": "注册失败",
+    "fillAllFields": "请填写所有字段",
+    "enterCredentials": "请输入用户名和密码"
   },
   "memorize": {
     "folder_selector": {
@@ -187,11 +204,17 @@
     "subtitleFile": "字幕文件",
     "uploaded": "已上传",
     "notUploaded": "未上传",
+    "uploadVideoButton": "上传视频",
+    "uploadSubtitleButton": "上传字幕",
+    "subtitleUploaded": "字幕已上传 ({count} 条)",
+    "subtitleNotUploaded": "字幕未上传",
     "autoPauseStatus": "自动暂停: {enabled}",
     "on": "开",
     "off": "关",
     "videoUploadFailed": "视频上传失败",
-    "subtitleUploadFailed": "字幕上传失败"
+    "subtitleUploadFailed": "字幕上传失败",
+    "subtitleLoadSuccess": "字幕加载成功",
+    "subtitleLoadFailed": "字幕加载失败"
   },
   "text_speaker": {
     "generateIPA": "生成IPA",
@@ -256,7 +279,9 @@
     "pleaseLogin": "请先登录",
     "pleaseCreateFolder": "请先创建文件夹",
     "savedToFolder": "已保存到文件夹：{folderName}",
-    "saveFailed": "保存失败，请稍后重试"
+    "saveFailed": "保存失败，请稍后重试",
+    "definition": "释义",
+    "example": "例句"
   },
   "explore": {
     "title": "探索",
@@ -272,14 +297,6 @@
     "sortByFavorites": "按收藏数排序",
     "sortByFavoritesActive": "取消按收藏数排序"
   },
-  "favorites": {
-    "title": "收藏",
-    "subtitle": "我收藏的文件夹",
-    "loading": "加载中...",
-    "noFavorites": "还没有收藏",
-    "folderInfo": "{userName} • {totalPairs} 个文本对",
-    "unknownUser": "未知用户"
-  },
   "favorites": {
     "title": "我的收藏",
     "subtitle": "收藏的公开文件夹",
@@ -299,6 +316,7 @@
     "displayName": "显示名称",
     "notSet": "未设置",
     "memberSince": "注册时间",
+    "logout": "登出",
     "folders": {
       "title": "文件夹",
       "noFolders": "还没有文件夹",