feat(app-iced): M114 账户页三轨登录（微软正版 / 第三方皮肤站 / 本地档案）

- 账户页：当前账户卡 + 全部账户列表 + 空态三入口 + 皮肤区；五项动作（添加/切换/删除/重新登录/校验）
- 三轨添加流程：设备码（用户码+链接+倒计时+过期重试+取消）、授权码（浏览器+可复制链接+取消）、
  本地档案（名字校验）、第三方站（服务地址 + 服务发现校验 + 密码登录，密码掩码且用完即弃）
- 导航：账户为一等页，入口是轨底头像位（未登录=描边剪影 / 已登录=首字母块+名字；窄高收成图标条）
- 凭据红线：DTO 侧形状脱敏 + 状态层二次脱敏 + 密码掩码；Inject-JWT 测试断言视图模型干净（已做变异取证）
- presenter：authlib 登录/服务发现/皮肤抓取（复用下载引擎的 HTTP 客户端，无新增依赖）、
  皮肤原图经 DTO 到 UI 裁剪成头像（既有 image 依赖，未改 Cargo.toml）
- i18n：新增 account 域 51 条中英文案（离线档案口径全量写入），金表同步

crates/i18n/src/catalog/golden.rs

@@ -304,4 +304,61 @@ pub(super) const GOLDEN: &[(&str, &str, &str)] = &[
     ("PackReasonSymlink", "symbolic link, skipped", "符号链接，已跳过"),
     ("PackReasonUnsafePath", "path fails the pack path rules, skipped", "路径过不了包内规整，已跳过"),
     ("PackReasonUnreadable", "cannot read it, skipped", "读不出来，已跳过"),
+    // ── M114 账户页：追加在 main 的全部域之后（金表只追加不重排）
+    ("AccountTitle", "Accounts", "账户"),
+    ("AccountSubtitle", "Microsoft, third-party skin servers and local profiles", "微软正版、第三方皮肤站与本地档案"),
+    ("AccountListTitle", "All accounts", "全部账户"),
+    ("AccountAddedOn", "Added {date}", "添加于 {date}"),
+    ("AccountActiveChip", "Active", "当前"),
+    ("AccountSwitch", "Use for launch", "切换为启动账户"),
+    ("AccountRelogin", "Sign in again", "重新登录"),
+    ("AccountRemove", "Remove", "删除"),
+    ("AccountKindMicrosoft", "Microsoft", "微软正版"),
+    ("AccountKindAuthlib", "Third-party skin server", "第三方皮肤站"),
+    ("AccountKindOffline", "Local profile", "本地档案"),
+    ("AccountServer", "Server {server}", "服务器 {server}"),
+    ("AccountEmptyTitle", "No accounts yet", "还没有账户"),
+    ("AccountEmptyBody", "Add a Microsoft account, a third-party skin server account, or a local profile.", "添加微软正版账户、第三方皮肤站账户，或建一个本地档案。"),
+    ("AccountEmptyAction", "Add an account", "添加账户"),
+    ("AccountTrackMicrosoftTitle", "Microsoft account", "微软正版"),
+    ("AccountTrackMicrosoftBody", "Sign in with a device code or in your browser. Online servers require this kind of account.", "用设备码或浏览器登录。联机服务器必须用这种账户。"),
+    ("AccountTrackAuthlibTitle", "Third-party skin server", "第三方皮肤站"),
+    ("AccountTrackAuthlibBody", "An authlib-injector compatible server (LittleSkin and friends) brings its own skins and capes.", "兼容 authlib-injector 的皮肤站（如 LittleSkin）自带皮肤与披风。"),
+    ("AccountTrackOfflineTitle", "Local profile", "本地档案"),
+    ("AccountTrackOfflineBody", "Local / isolated-network testing only — it cannot join servers that require a genuine Minecraft account.", "仅本地/隔离网络测试用，无法连接启用正版验证的服务器。"),
+    ("AccountTrackOpen", "Sign in", "登录"),
+    ("AccountTrackCreate", "Create profile", "创建档案"),
+    ("AccountDialogClose", "Close", "关闭"),
+    ("AccountOfflineNameLabel", "Profile name", "档案名"),
+    ("AccountOfflineNameHint", "3–16 letters, digits or underscore", "3–16 位字母、数字或下划线"),
+    ("AccountOfflineSubmit", "Create profile", "创建档案"),
+    ("AccountOfflineWarning", "Local / isolated-network testing only — it cannot join servers that require a genuine Minecraft account.", "仅本地/隔离网络测试用，无法连接启用正版验证的服务器。"),
+    ("AccountDeviceCodeLabel", "Enter this code", "输入这个用户码"),
+    ("AccountDeviceCodeCopy", "Copy code", "复制用户码"),
+    ("AccountDeviceLinkCopy", "Copy link", "复制链接"),
+    ("AccountDeviceOpenLink", "Open link", "打开链接"),
+    ("AccountDeviceCountdown", "{secs}s left", "剩 {secs}s"),
+    ("AccountDeviceExpired", "This code has expired. Start again for a fresh one.", "这个用户码已过期，重新开始换一个新的。"),
+    ("AccountDeviceRetry", "Try again", "重试"),
+    ("AccountDeviceCancel", "Cancel", "取消"),
+    ("AccountDeviceBrowser", "Sign in with browser", "用浏览器登录"),
+    ("AccountDeviceUseCode", "Use a device code instead", "改用设备码"),
+    ("AccountServerLabel", "Server address", "服务器地址"),
+    ("AccountServerHint", "API root, e.g. https://littleskin.cn/api/yggdrasil/", "API 根，例：https://littleskin.cn/api/yggdrasil/"),
+    ("AccountServerProbe", "Check server", "校验服务器"),
+    ("AccountLoginNameLabel", "Email or username", "邮箱或用户名"),
+    ("AccountPasswordLabel", "Password", "密码"),
+    ("AccountPasswordHint", "Used once for this sign-in. It is never stored.", "只在这次登录里用一次，不会保存。"),
+    ("AccountAuthlibSubmit", "Sign in", "登录"),
+    ("AccountAuthlibIdleHint", "Check the server address first; signing in only starts after the check passes.", "先校验服务器地址，通过之后才能登录。"),
+    ("AccountSkinTitle", "Skin", "皮肤"),
+    ("AccountSkinNone", "No skin available", "没有可用皮肤"),
+    ("AccountSkinHint", "Skins come from the account's own server; nothing is generated locally.", "皮肤来自账户自己的服务器，本地不生成任何假皮肤。"),
+    ("AccountRailSignedOut", "Not signed in", "未登录"),
+    ("AccountDeviceHint", "Open the link in your browser and enter the code above.", "在浏览器里打开链接，输入上面的用户码。"),
+    ("AccountDeviceBrowserHint", "Finish the sign-in in the browser window we just opened; the link below also works.", "在我们刚打开的浏览器窗口里完成登录；下面的链接也能手动打开。"),
+    ("AccountServerChecking", "Checking the server…", "正在校验服务器…"),
+    ("AccountServerOk", "Server {server} is ready", "服务器 {server} 可用"),
+    ("AccountLoginFailed", "Sign-in failed", "登录失败"),
+    ("AccountCurrentTitle", "Current account", "当前账户"),
 ];