refactor(pages,i18n): M99 纯搬移 —— 导航表抽 pages/nav.rs、设置页拆目录、catalog 按域拆开

- pages/mod.rs 400 -> 356 行：NAV 表与组件版 rail 搬进 pages/nav.rs（NAV 可见性变 pub(crate)，
  只为让 pages/tests.rs 的三条断言原样保留）
- pages/settings.rs -> pages/settings/{mod,frame,general,appearance,java,download,ai,tests}.rs：
  mod.rs 只留「分组注册表 + 选中分组 + 内容分发」，一组一个文件，为四条 section 线各留位置
- i18n catalog.rs 310 -> 273 行：条目表按域拆到 catalog/<域>.rs，catalog.rs 留 catalog! 宏、
  装配链、Catalog 与对外 API；新增 catalog/golden.rs（拆分前 key->译文 全量快照）守门
- 行为/文案/样式零变化：pages_demo 的 instances/settings × 浅/深 四张图逐字节相同

crates/i18n/src/catalog.rs

@@ -23,6 +23,44 @@
 //!    表格是手写的，缺条目的风险回来了；
 //! 2. **回归守门**：万一有人把这张表改回「两套各写一遍」，[`Catalog::missing`] 的守卫测试立刻红。
 //!
+//! ## 按域拆开（M99 `SETTINGSFRAME`）
+//!
+//! 条目表原先整张写在本文件里，而**设置页正文接下来由四条 mission 并行接**（java / download /
+//! language+appearance / ai+about），每条都要往这张表里加一批 key——同一张表就是四条线的冲突点。
+//! 现在一个域一个文件（`catalog/<域>.rs`），本文件只留：`catalog!` 宏、装配链、[`Catalog`] 与对外 API。
+//!
+//! | 文件 | 域 | 谁会长它 |
+//! |---|---|---|
+//! | [`nav`] / [`instances`] / [`loader`] / [`launch`] / [`font`] / [`core_text`] | 页面与运行时文案 | 各自页面 |
+//! | [`download`] / [`logs`] | 下载页 / 日志页（M94 / M95） | 那两页 |
+//! | `settings/`（`general` / `appearance` / `java` / `download` / `ai`） | 设置页，**一个分组一个文件** | 设置页四条线 |
+//!
+//! ### 域文件的形状（加 key 时照抄）
+//!
+//! ```ignore
+//! macro_rules! <域>_entries {
+//!     ($next:ident, $($rest:ident,)* { $($acc:tt)* }) => {
+//!         $next! { $($rest,)* {
+//!             $($acc)*
+//!             NavInstances => ("Instances", "实例"),
+//!         } }
+//!     };
+//! }
+//! pub(super) use <域>_entries;
+//! ```
+//!
+//! 它把本域条目**追加**到累积表 `$acc` 之后，再把「还没装配的域」原样交给 `$next`——最后交给
+//! [`finish`]，由它把整张表喂给 [`catalog!`]。**为什么非得这么绕**：`macro_rules!` 不能在
+//! 宏参数里展开另一个宏（`catalog! { nav_entries!() }` 只会把 `nav_entries!()` 当成普通 token），
+//! 也不能用元变量当宏名（`macro_rules! $name` 非法），所以只能「回调链」式累积。代价是每个域文件
+//! 都要重抄上面那 6 行签名——这是 `macro_rules!` 的固有成本，不是可以省掉的样板。
+//!
+//! ### 拆开之后仍然只有一个真相源
+//!
+//! 装配顺序写在下面那条调用里，**它等于 `Key` 的声明顺序**；[`golden`] 把拆分前那份
+//! `key -> (en, zh-CN)` 全量逐字节钉住（连顺序一起钉），所以「搬丢一条 / 两条互抄 / 顺序被调换」
+//! 都会红。
+//!
 //! ## 缺译时给什么
 //!
 //! **不回落**（绝不拿另一种语言顶替，用户会看到「一半英文一半中文」的界面而不自知）：
@@ -66,132 +104,59 @@ macro_rules! catalog {
     };
 }
 
-catalog! {
-    // ── 导航轨（`pages::Route` 的四项）
-    NavInstances => ("Instances", "实例"),
-    NavDownload => ("Downloads", "下载"),
-    NavLogs => ("Logs", "日志"),
-    NavSettings => ("Settings", "设置"),
+// --------------------------------------------------------------- 域装配
 
-    // ── 实例页
-    InstancesNew => ("New instance", "新建实例"),
-    InstancesImport => ("Import", "导入"),
-    InstancesBack => ("Back to instances", "返回实例列表"),
-    InstancesPlay => ("Play", "启动"),
-    InstancesLastPlayed => ("Last played {when}", "上次游玩 {when}"),
-    InstancesEmptyTitle => ("No instance selected", "未选择实例"),
-    InstancesEmptyBody => ("Pick an instance to see its details.", "选择一个实例查看详情。"),
+/// 链的终点：把累积起来的所有条目交给 [`catalog!`]，生成 `Key` 与两张表。
+macro_rules! finish {
+    ({ $($acc:tt)* }) => { catalog! { $($acc)* } };
+}
 
-    // ── 加载器（品牌名不翻译：Fabric / Forge / Quilt 一律原样，只有「原版」是词）
-    LoaderVanilla => ("Vanilla", "原版"),
+mod core_text;
+mod download;
+mod font;
+mod instances;
+mod launch;
+mod loader;
+mod logs;
+mod nav;
+mod settings;
 
-    // ── 启动结局（原来 UI 把 "Launch failed" 与 core 的「静默失败」拼成一句话，现在一句话 = 一个 key）
-    LaunchOutcomeNormal => ("Finished normally", "正常结束"),
-    LaunchOutcomeCrash => ("The game crashed", "游戏崩溃"),
-    LaunchOutcomeSilent => (
-        "Suspected silent failure: exit code 0, but the game never really started",
-        "疑似静默失败：退出码 0，但游戏没真正跑起来"
-    ),
-    LaunchFailedWithCode => ("Launch failed (exit {code}): {reason}", "启动失败（退出码 {code}）：{reason}"),
+#[cfg(test)]
+mod golden;
 
-    // ── 中文字体（D28：中文环境缺字体时的下载提示 / 失败回退）
-    FontCjkNeedsDownload => (
-        "No Chinese font found on this system. Download an open-source (OFL) Chinese font?",
-        "系统里没找到中文字体。要下载一套开源（OFL）中文字体吗？"
-    ),
-    FontCjkDownloading => ("Downloading Chinese font… {percent}%", "正在下载中文字体… {percent}%"),
-    FontCjkDownloadFailed => (
-        "Chinese font download failed; the interface stays in English.",
-        "中文字体下载失败，界面暂时保持英文。"
-    ),
-    FontCjkReady => ("Chinese font ready: {family}", "中文字体已就绪：{family}"),
+#[cfg(test)]
+mod tests;
 
-    // ── 设置
-    SettingsLanguage => ("Language", "界面语言"),
-    SettingsLanguageHint => (
-        "Switches the interface language. Chinese text needs a Chinese font.",
-        "切换界面语言。显示中文需要中文字体。"
-    ),
+use core_text::core_text_entries;
+use download::download_entries;
+use font::font_entries;
+use instances::instances_entries;
+use launch::launch_entries;
+use loader::loader_entries;
+use logs::logs_entries;
+use nav::nav_entries;
+use settings::{
+    settings_ai_entries, settings_appearance_entries, settings_download_entries,
+    settings_general_entries, settings_java_entries,
+};
 
-    // ── core / presenter 只给了中文串、UI 又不许画原文时的兜底（见 `bridge`）
-    CoreTextUntranslated => ("[system text not translated]", "［未翻译的系统文案］"),
-
-    // --- download page (M94) ---
-    // 下载页（`crates/app-iced/src/pages/download`）。一句话一个 key：带变量的句子用 `{name}`，
-    // 页面只做 `Catalog::render`，不拼片段（`bridge` 的规矩 1）。
-    //
-    // 文案口径（M94 r1 / P2-2）：**只说这个页面真能做到的动作**（切分类、刷新、看日志），
-    // 不写「稍后会自动重试」这类 UI 没有的能力，也不拿文案去补功能。
-    DownloadTitle => ("Downloads", "下载"),
-    DownloadSubtitle => ("Versions you can install", "可以安装的版本"),
-    DownloadRefresh => ("Refresh", "刷新"),
-    DownloadInstall => ("Install", "安装"),
-    DownloadCancel => ("Cancel install", "取消安装"),
-    DownloadInstalled => ("Installed", "已安装"),
-    DownloadCount => ("{count} versions", "{count} 个版本"),
-    DownloadRowSupporting => ("{kind} · released {date}", "{kind} · 发布于 {date}"),
-    DownloadSelectHint => ("Pick a version, then install", "选一个版本再安装"),
-    DownloadLoading => ("Loading versions…", "正在加载版本列表…"),
-    DownloadLoadingHint => (
-        "If this stays here, press Refresh in the top right.",
-        "如果一直停在这里，点右上角的刷新。"
-    ),
-    DownloadEmptyTitle => ("No versions to show", "没有可显示的版本"),
-    DownloadEmptyBody => (
-        "Pick another category, or refresh the list.",
-        "换一个分类，或刷新一次列表。"
-    ),
-    DownloadCategoryAll => ("All", "全部"),
-    DownloadCategoryRelease => ("Release", "正式版"),
-    DownloadCategorySnapshot => ("Snapshot", "预览版"),
-    DownloadCategoryAncient => ("Ancient", "远古版"),
-    DownloadStagePlanning => ("Planning", "解析版本"),
-    DownloadStageDownloading => ("Downloading files", "下载文件"),
-    DownloadStageInstalling => ("Building the version", "生成版本"),
-    DownloadStageRegistering => ("Registering the instance", "登记实例"),
-    DownloadStageDone => ("Done", "已完成"),
-    DownloadStageFailed => ("Install failed", "安装失败"),
-    DownloadStageCancelled => ("Install cancelled", "安装已取消"),
-    DownloadProgress => (
-        "{done}/{total} files",
-        "{done}/{total} 文件"
-    ),
-    DownloadProgressUnknown => ("Waiting for the first file…", "等第一个文件…"),
-    // 速率与剩余时间是两个独立短语，各占一个 key（`DownloadRate` 只负责把它们排成一行）
-    DownloadRate => ("{speed} · {eta}", "{speed}，{eta}"),
-    DownloadEtaSecs => ("{secs}s left", "剩 {secs}s"),
-    DownloadEtaMins => ("{mins}m{secs}s left", "剩 {mins}m{secs}s"),
-    DownloadFailedHint => (
-        "The Logs page has the full reason.",
-        "完整原因在日志页。"
-    ),
-    DownloadOpenLogs => ("Open logs", "打开日志"),
-    DownloadDismiss => ("Dismiss", "关闭"),
-    // --- logs page (M95) ---
-    // 日志页的**界面文案**（标题 / 按钮 / 分组名 / 空态）。诊断结论的正文不在这里：
-    // 那是规则表 `rules.d/*.yaml` 的输出（数据），见 `pages/logs/diagnostic.rs` 的模块文档。
-    // `LogsStatus` 是**模板**：中英差别落在分隔符上（中文用全角竖线——`·` 是外来符号，
-    // 中文正文里偏挤；这也让「中文目录必须与英文不同」这条守卫成立，不是为过测试硬造差异）。
-    LogsSubtitleIdle => ("Nothing is running right now", "当前没有运行中的实例"),
-    LogsStatus => ("{instance} · {when} · {outcome}", "{instance}｜{when}｜{outcome}"),
-    LogsOpenFolder => ("Open folder", "打开目录"),
-    LogsClear => ("Clear", "清空"),
-    LogsOutputTitle => ("OUTPUT", "输出"),
-    LogsDiagnosisTitle => ("DIAGNOSIS", "诊断"),
-    LogsConfidenceHigh => ("HIGH CONFIDENCE", "高置信度"),
-    LogsConfidenceMedium => ("MEDIUM CONFIDENCE", "中置信度"),
-    LogsConfidenceLow => ("LOW CONFIDENCE", "低置信度"),
-    LogsSubtitleLive => ("Running now — logs stream as they arrive", "正在运行 — 日志实时滚动"),
-    LogsConfidence => ("Confidence {percent}%", "置信度 {percent}%"),
-    LogsSuggestedFix => ("Suggested fix", "建议动作"),
-    LogsSummaryLabel => ("One-line summary", "一行摘要"),
-    LogsCopySummary => ("Copy summary", "复制摘要"),
-    LogsEmptyTitle => ("No output yet", "还没有输出"),
-    LogsEmptyBody => (
-        "Logs stream here while the launcher or the game is running. Pick an instance and start it to see the first lines.",
-        "启动器或游戏运行时，日志会实时出现在这里。选择一个实例并启动，就能看到第一批日志。"
-    ),
-    LogsEmptyAction => ("Choose an instance", "选择实例"),
+// 装配顺序 = `Key` 的声明顺序。**与拆分前逐条一致**，动它等于动 `Key` 的 `Ord` 与导出表顺序，
+// 金表（`catalog/golden.rs`）会红。设置页那五个域按页面上的分组顺序排，中间三个现在是空的。
+nav_entries! {
+    instances_entries,
+    loader_entries,
+    launch_entries,
+    font_entries,
+    settings_general_entries,
+    settings_appearance_entries,
+    settings_java_entries,
+    settings_download_entries,
+    settings_ai_entries,
+    core_text_entries,
+    download_entries,
+    logs_entries,
+    finish,
+    {}
 }
 
 /// 一套语言的目录（不可变；`Copy`，随手传值）。
@@ -306,5 +271,3 @@ pub fn placeholders(text: &str) -> Vec<&str> {
     }
     found
 }
-#[cfg(test)]
-mod tests;

crates/i18n/src/catalog/core_text.rs

@@ -0,0 +1,15 @@
+//! core / presenter 只给了中文串、UI 又不许画原文时的兜底文案（口径见 [`crate::bridge`]）。
+//!
+//! 域文件的形状见 [`crate::catalog`] 的「域装配」一节。
+
+macro_rules! core_text_entries {
+    ($next:ident, $($rest:ident,)* { $($acc:tt)* }) => {
+        $next! { $($rest,)* {
+            $($acc)*
+            // ── core / presenter 只给了中文串、UI 又不许画原文时的兜底（见 `bridge`）
+            CoreTextUntranslated => ("[system text not translated]", "［未翻译的系统文案］"),
+        } }
+    };
+}
+
+pub(crate) use core_text_entries;

crates/i18n/src/catalog/download.rs

@@ -0,0 +1,65 @@
+//! 下载页文案（M94）。
+//!
+//! 一句话一个 key：带变量的句子用 `{name}`，页面只做 [`crate::Catalog::render`]，不拼片段
+//! （[`crate::bridge`] 的规矩 1）。
+//!
+//! 文案口径（M94 r1 / P2-2）：**只说这个页面真能做到的动作**（切分类、刷新、看日志），
+//! 不写「稍后会自动重试」这类 UI 没有的能力，也不拿文案去补功能。
+//!
+//! 域文件的形状见 [`crate::catalog`] 的「域装配」一节。
+
+macro_rules! download_entries {
+    ($next:ident, $($rest:ident,)* { $($acc:tt)* }) => {
+        $next! { $($rest,)* {
+            $($acc)*
+            // --- download page (M94) ---
+            DownloadTitle => ("Downloads", "下载"),
+            DownloadSubtitle => ("Versions you can install", "可以安装的版本"),
+            DownloadRefresh => ("Refresh", "刷新"),
+            DownloadInstall => ("Install", "安装"),
+            DownloadCancel => ("Cancel install", "取消安装"),
+            DownloadInstalled => ("Installed", "已安装"),
+            DownloadCount => ("{count} versions", "{count} 个版本"),
+            DownloadRowSupporting => ("{kind} · released {date}", "{kind} · 发布于 {date}"),
+            DownloadSelectHint => ("Pick a version, then install", "选一个版本再安装"),
+            DownloadLoading => ("Loading versions…", "正在加载版本列表…"),
+            DownloadLoadingHint => (
+                "If this stays here, press Refresh in the top right.",
+                "如果一直停在这里，点右上角的刷新。"
+            ),
+            DownloadEmptyTitle => ("No versions to show", "没有可显示的版本"),
+            DownloadEmptyBody => (
+                "Pick another category, or refresh the list.",
+                "换一个分类，或刷新一次列表。"
+            ),
+            DownloadCategoryAll => ("All", "全部"),
+            DownloadCategoryRelease => ("Release", "正式版"),
+            DownloadCategorySnapshot => ("Snapshot", "预览版"),
+            DownloadCategoryAncient => ("Ancient", "远古版"),
+            DownloadStagePlanning => ("Planning", "解析版本"),
+            DownloadStageDownloading => ("Downloading files", "下载文件"),
+            DownloadStageInstalling => ("Building the version", "生成版本"),
+            DownloadStageRegistering => ("Registering the instance", "登记实例"),
+            DownloadStageDone => ("Done", "已完成"),
+            DownloadStageFailed => ("Install failed", "安装失败"),
+            DownloadStageCancelled => ("Install cancelled", "安装已取消"),
+            DownloadProgress => (
+                "{done}/{total} files",
+                "{done}/{total} 文件"
+            ),
+            DownloadProgressUnknown => ("Waiting for the first file…", "等第一个文件…"),
+            // 速率与剩余时间是两个独立短语，各占一个 key（`DownloadRate` 只负责把它们排成一行）
+            DownloadRate => ("{speed} · {eta}", "{speed}，{eta}"),
+            DownloadEtaSecs => ("{secs}s left", "剩 {secs}s"),
+            DownloadEtaMins => ("{mins}m{secs}s left", "剩 {mins}m{secs}s"),
+            DownloadFailedHint => (
+                "The Logs page has the full reason.",
+                "完整原因在日志页。"
+            ),
+            DownloadOpenLogs => ("Open logs", "打开日志"),
+            DownloadDismiss => ("Dismiss", "关闭"),
+        } }
+    };
+}
+
+pub(crate) use download_entries;

crates/i18n/src/catalog/font.rs

@@ -0,0 +1,24 @@
+//! 中文字体文案（D28）：中文环境缺字体时的下载提示 / 失败回退。
+//!
+//! 域文件的形状见 [`crate::catalog`] 的「域装配」一节。
+
+macro_rules! font_entries {
+    ($next:ident, $($rest:ident,)* { $($acc:tt)* }) => {
+        $next! { $($rest,)* {
+            $($acc)*
+            // ── 中文字体（D28：中文环境缺字体时的下载提示 / 失败回退）
+            FontCjkNeedsDownload => (
+                "No Chinese font found on this system. Download an open-source (OFL) Chinese font?",
+                "系统里没找到中文字体。要下载一套开源（OFL）中文字体吗？"
+            ),
+            FontCjkDownloading => ("Downloading Chinese font… {percent}%", "正在下载中文字体… {percent}%"),
+            FontCjkDownloadFailed => (
+                "Chinese font download failed; the interface stays in English.",
+                "中文字体下载失败，界面暂时保持英文。"
+            ),
+            FontCjkReady => ("Chinese font ready: {family}", "中文字体已就绪：{family}"),
+        } }
+    };
+}
+
+pub(crate) use font_entries;

crates/i18n/src/catalog/golden.rs

@@ -0,0 +1,97 @@
+//! 拆分前的 `key -> (en, zh-CN)` **逐字快照**（金表）。
+//!
+//! ## 它是什么
+//!
+//! M99 把 `catalog.rs` 的单张条目表按域拆到 `catalog/<域>.rs` 之后，这 72 行就是「拆分前那一份」
+//! 的原样导出：由拆分前的 `Catalog::of(En)` / `Catalog::of(ZhCn)` 逐条 `println!` 出来，
+//! 再原封不动抄进来（生成方式见 `catalog/tests.rs` 里 `split_keeps_every_translation` 的注释）。
+//!
+//! ## 为什么不是「数条数」
+//!
+//! 条数相等抓不住任何一种真会发生的坏法：某条译文在搬移时被漏掉、另一条被复制两次，条数照旧。
+//! 这张表比的是**全量、逐字节、按声明顺序**的三元组，于是下面四种坏法都会红：
+//!
+//! | 坏法 | 红在哪 |
+//! |---|---|
+//! | 某个 key 整条被搬丢 | 条数不等 / 该行 key 名对不上 |
+//! | 两条 key 的译文互抄（同 key 被覆盖到别的译文） | 该行 en 或 zh 不等 |
+//! | 某条译文改了一个字符 | 该行不等（`assert_eq!` 带原文） |
+//! | 域的顺序被调换（`Key` 的 `Ord` 与导出表顺序都靠它） | 该行 key 名对不上 |
+//!
+//! **抓不住**：译文本身翻得对不对（金表是「拆分前」的快照，它只能证明「没变」）。
+
+/// 拆分前 `Key::ALL` 的顺序 × (en, zh-CN)。第一列是变体名（`Key::name()` 的返回值）。
+pub(super) const GOLDEN: &[(&str, &str, &str)] = &[
+    ("NavInstances", "Instances", "实例"),
+    ("NavDownload", "Downloads", "下载"),
+    ("NavLogs", "Logs", "日志"),
+    ("NavSettings", "Settings", "设置"),
+    ("InstancesNew", "New instance", "新建实例"),
+    ("InstancesImport", "Import", "导入"),
+    ("InstancesBack", "Back to instances", "返回实例列表"),
+    ("InstancesPlay", "Play", "启动"),
+    ("InstancesLastPlayed", "Last played {when}", "上次游玩 {when}"),
+    ("InstancesEmptyTitle", "No instance selected", "未选择实例"),
+    ("InstancesEmptyBody", "Pick an instance to see its details.", "选择一个实例查看详情。"),
+    ("LoaderVanilla", "Vanilla", "原版"),
+    ("LaunchOutcomeNormal", "Finished normally", "正常结束"),
+    ("LaunchOutcomeCrash", "The game crashed", "游戏崩溃"),
+    ("LaunchOutcomeSilent", "Suspected silent failure: exit code 0, but the game never really started", "疑似静默失败：退出码 0，但游戏没真正跑起来"),
+    ("LaunchFailedWithCode", "Launch failed (exit {code}): {reason}", "启动失败（退出码 {code}）：{reason}"),
+    ("FontCjkNeedsDownload", "No Chinese font found on this system. Download an open-source (OFL) Chinese font?", "系统里没找到中文字体。要下载一套开源（OFL）中文字体吗？"),
+    ("FontCjkDownloading", "Downloading Chinese font… {percent}%", "正在下载中文字体… {percent}%"),
+    ("FontCjkDownloadFailed", "Chinese font download failed; the interface stays in English.", "中文字体下载失败，界面暂时保持英文。"),
+    ("FontCjkReady", "Chinese font ready: {family}", "中文字体已就绪：{family}"),
+    ("SettingsLanguage", "Language", "界面语言"),
+    ("SettingsLanguageHint", "Switches the interface language. Chinese text needs a Chinese font.", "切换界面语言。显示中文需要中文字体。"),
+    ("CoreTextUntranslated", "[system text not translated]", "［未翻译的系统文案］"),
+    ("DownloadTitle", "Downloads", "下载"),
+    ("DownloadSubtitle", "Versions you can install", "可以安装的版本"),
+    ("DownloadRefresh", "Refresh", "刷新"),
+    ("DownloadInstall", "Install", "安装"),
+    ("DownloadCancel", "Cancel install", "取消安装"),
+    ("DownloadInstalled", "Installed", "已安装"),
+    ("DownloadCount", "{count} versions", "{count} 个版本"),
+    ("DownloadRowSupporting", "{kind} · released {date}", "{kind} · 发布于 {date}"),
+    ("DownloadSelectHint", "Pick a version, then install", "选一个版本再安装"),
+    ("DownloadLoading", "Loading versions…", "正在加载版本列表…"),
+    ("DownloadLoadingHint", "If this stays here, press Refresh in the top right.", "如果一直停在这里，点右上角的刷新。"),
+    ("DownloadEmptyTitle", "No versions to show", "没有可显示的版本"),
+    ("DownloadEmptyBody", "Pick another category, or refresh the list.", "换一个分类，或刷新一次列表。"),
+    ("DownloadCategoryAll", "All", "全部"),
+    ("DownloadCategoryRelease", "Release", "正式版"),
+    ("DownloadCategorySnapshot", "Snapshot", "预览版"),
+    ("DownloadCategoryAncient", "Ancient", "远古版"),
+    ("DownloadStagePlanning", "Planning", "解析版本"),
+    ("DownloadStageDownloading", "Downloading files", "下载文件"),
+    ("DownloadStageInstalling", "Building the version", "生成版本"),
+    ("DownloadStageRegistering", "Registering the instance", "登记实例"),
+    ("DownloadStageDone", "Done", "已完成"),
+    ("DownloadStageFailed", "Install failed", "安装失败"),
+    ("DownloadStageCancelled", "Install cancelled", "安装已取消"),
+    ("DownloadProgress", "{done}/{total} files", "{done}/{total} 文件"),
+    ("DownloadProgressUnknown", "Waiting for the first file…", "等第一个文件…"),
+    ("DownloadRate", "{speed} · {eta}", "{speed}，{eta}"),
+    ("DownloadEtaSecs", "{secs}s left", "剩 {secs}s"),
+    ("DownloadEtaMins", "{mins}m{secs}s left", "剩 {mins}m{secs}s"),
+    ("DownloadFailedHint", "The Logs page has the full reason.", "完整原因在日志页。"),
+    ("DownloadOpenLogs", "Open logs", "打开日志"),
+    ("DownloadDismiss", "Dismiss", "关闭"),
+    ("LogsSubtitleIdle", "Nothing is running right now", "当前没有运行中的实例"),
+    ("LogsStatus", "{instance} · {when} · {outcome}", "{instance}｜{when}｜{outcome}"),
+    ("LogsOpenFolder", "Open folder", "打开目录"),
+    ("LogsClear", "Clear", "清空"),
+    ("LogsOutputTitle", "OUTPUT", "输出"),
+    ("LogsDiagnosisTitle", "DIAGNOSIS", "诊断"),
+    ("LogsConfidenceHigh", "HIGH CONFIDENCE", "高置信度"),
+    ("LogsConfidenceMedium", "MEDIUM CONFIDENCE", "中置信度"),
+    ("LogsConfidenceLow", "LOW CONFIDENCE", "低置信度"),
+    ("LogsSubtitleLive", "Running now — logs stream as they arrive", "正在运行 — 日志实时滚动"),
+    ("LogsConfidence", "Confidence {percent}%", "置信度 {percent}%"),
+    ("LogsSuggestedFix", "Suggested fix", "建议动作"),
+    ("LogsSummaryLabel", "One-line summary", "一行摘要"),
+    ("LogsCopySummary", "Copy summary", "复制摘要"),
+    ("LogsEmptyTitle", "No output yet", "还没有输出"),
+    ("LogsEmptyBody", "Logs stream here while the launcher or the game is running. Pick an instance and start it to see the first lines.", "启动器或游戏运行时，日志会实时出现在这里。选择一个实例并启动，就能看到第一批日志。"),
+    ("LogsEmptyAction", "Choose an instance", "选择实例"),
+];

crates/i18n/src/catalog/instances.rs

@@ -0,0 +1,21 @@
+//! 实例页文案：页头动作、返回、上次游玩时间、空态。
+//!
+//! 域文件的形状见 [`crate::catalog`] 的「域装配」一节。
+
+macro_rules! instances_entries {
+    ($next:ident, $($rest:ident,)* { $($acc:tt)* }) => {
+        $next! { $($rest,)* {
+            $($acc)*
+            // ── 实例页
+            InstancesNew => ("New instance", "新建实例"),
+            InstancesImport => ("Import", "导入"),
+            InstancesBack => ("Back to instances", "返回实例列表"),
+            InstancesPlay => ("Play", "启动"),
+            InstancesLastPlayed => ("Last played {when}", "上次游玩 {when}"),
+            InstancesEmptyTitle => ("No instance selected", "未选择实例"),
+            InstancesEmptyBody => ("Pick an instance to see its details.", "选择一个实例查看详情。"),
+        } }
+    };
+}
+
+pub(crate) use instances_entries;

crates/i18n/src/catalog/launch.rs

@@ -0,0 +1,21 @@
+//! 启动结局文案：一句话 = 一个 key（原来 UI 把 `"Launch failed"` 与 core 的「静默失败」拼成一句话）。
+//!
+//! 域文件的形状见 [`crate::catalog`] 的「域装配」一节。
+
+macro_rules! launch_entries {
+    ($next:ident, $($rest:ident,)* { $($acc:tt)* }) => {
+        $next! { $($rest,)* {
+            $($acc)*
+            // ── 启动结局（原来 UI 把 "Launch failed" 与 core 的「静默失败」拼成一句话，现在一句话 = 一个 key）
+            LaunchOutcomeNormal => ("Finished normally", "正常结束"),
+            LaunchOutcomeCrash => ("The game crashed", "游戏崩溃"),
+            LaunchOutcomeSilent => (
+                "Suspected silent failure: exit code 0, but the game never really started",
+                "疑似静默失败：退出码 0，但游戏没真正跑起来"
+            ),
+            LaunchFailedWithCode => ("Launch failed (exit {code}): {reason}", "启动失败（退出码 {code}）：{reason}"),
+        } }
+    };
+}
+
+pub(crate) use launch_entries;

crates/i18n/src/catalog/loader.rs

@@ -0,0 +1,15 @@
+//! 加载器文案：品牌名不翻译（Fabric / Forge / Quilt 一律原样），只有「原版」是一个词。
+//!
+//! 域文件的形状见 [`crate::catalog`] 的「域装配」一节。
+
+macro_rules! loader_entries {
+    ($next:ident, $($rest:ident,)* { $($acc:tt)* }) => {
+        $next! { $($rest,)* {
+            $($acc)*
+            // ── 加载器（品牌名不翻译：Fabric / Forge / Quilt 一律原样，只有「原版」是词）
+            LoaderVanilla => ("Vanilla", "原版"),
+        } }
+    };
+}
+
+pub(crate) use loader_entries;

crates/i18n/src/catalog/logs.rs

@@ -0,0 +1,40 @@
+//! 日志页文案（M95）。
+//!
+//! 日志页的**界面文案**（标题 / 按钮 / 分组名 / 空态）。诊断结论的正文不在这里：
+//! 那是规则表 `rules.d/*.yaml` 的输出（数据），见 `pages/logs/diagnostic.rs` 的模块文档。
+//!
+//! `LogsStatus` 是**模板**：中英差别落在分隔符上（中文用全角竖线——`·` 是外来符号，
+//! 中文正文里偏挤；这也让「中文目录必须与英文不同」这条守卫成立，不是为过测试硬造差异）。
+//!
+//! 域文件的形状见 [`crate::catalog`] 的「域装配」一节。
+
+macro_rules! logs_entries {
+    ($next:ident, $($rest:ident,)* { $($acc:tt)* }) => {
+        $next! { $($rest,)* {
+            $($acc)*
+            // --- logs page (M95) ---
+            LogsSubtitleIdle => ("Nothing is running right now", "当前没有运行中的实例"),
+            LogsStatus => ("{instance} · {when} · {outcome}", "{instance}｜{when}｜{outcome}"),
+            LogsOpenFolder => ("Open folder", "打开目录"),
+            LogsClear => ("Clear", "清空"),
+            LogsOutputTitle => ("OUTPUT", "输出"),
+            LogsDiagnosisTitle => ("DIAGNOSIS", "诊断"),
+            LogsConfidenceHigh => ("HIGH CONFIDENCE", "高置信度"),
+            LogsConfidenceMedium => ("MEDIUM CONFIDENCE", "中置信度"),
+            LogsConfidenceLow => ("LOW CONFIDENCE", "低置信度"),
+            LogsSubtitleLive => ("Running now — logs stream as they arrive", "正在运行 — 日志实时滚动"),
+            LogsConfidence => ("Confidence {percent}%", "置信度 {percent}%"),
+            LogsSuggestedFix => ("Suggested fix", "建议动作"),
+            LogsSummaryLabel => ("One-line summary", "一行摘要"),
+            LogsCopySummary => ("Copy summary", "复制摘要"),
+            LogsEmptyTitle => ("No output yet", "还没有输出"),
+            LogsEmptyBody => (
+                "Logs stream here while the launcher or the game is running. Pick an instance and start it to see the first lines.",
+                "启动器或游戏运行时，日志会实时出现在这里。选择一个实例并启动，就能看到第一批日志。"
+            ),
+            LogsEmptyAction => ("Choose an instance", "选择实例"),
+        } }
+    };
+}
+
+pub(crate) use logs_entries;

crates/i18n/src/catalog/nav.rs

@@ -0,0 +1,19 @@
+//! 导航轨文案：四个一级页。AI 独立页没有导航高亮项（`Route::Agent.nav()` 是 `None`），所以没有 key。
+//!
+//! 域文件的形状见 [`crate::catalog`] 的「域装配」一节：本宏把条目**追加**到 `$acc` 之后，
+//! 再把「还没装配的域」原样交给 `$next`。条目顺序 = `Key` 的声明顺序（金表 `catalog::golden` 守门）。
+
+macro_rules! nav_entries {
+    ($next:ident, $($rest:ident,)* { $($acc:tt)* }) => {
+        $next! { $($rest,)* {
+            $($acc)*
+            // ── 导航轨（`pages::Route` 的四项）
+            NavInstances => ("Instances", "实例"),
+            NavDownload => ("Downloads", "下载"),
+            NavLogs => ("Logs", "日志"),
+            NavSettings => ("Settings", "设置"),
+        } }
+    };
+}
+
+pub(crate) use nav_entries;

crates/i18n/src/catalog/settings/ai.rs

@@ -0,0 +1,13 @@
+//! 设置页「AI / About」分组文案：**预留**（页面上还没有这个分组，见 `pages/settings/mod.rs` 的
+//! 分组注册表）。
+//!
+//! 加 key 时把条目写进 `$($acc)*` 后面即可（形状见 [`crate::catalog`] 的「域装配」一节）。
+//! 现在没有条目，所以本宏是**空转移器**：只把累积表原样交给下一个域。
+
+macro_rules! settings_ai_entries {
+    ($next:ident, $($rest:ident,)* { $($acc:tt)* }) => {
+        $next! { $($rest,)* { $($acc)* } }
+    };
+}
+
+pub(crate) use settings_ai_entries;

crates/i18n/src/catalog/settings/appearance.rs

@@ -0,0 +1,12 @@
+//! 设置页「Appearance」分组文案：**预留**（真控件在 `pages/appearance/section.rs`，文案还没接 i18n）。
+//!
+//! 加 key 时把条目写进 `$($acc)*` 后面即可（形状见 [`crate::catalog`] 的「域装配」一节）。
+//! 现在没有条目，所以本宏是**空转移器**：只把累积表原样交给下一个域。
+
+macro_rules! settings_appearance_entries {
+    ($next:ident, $($rest:ident,)* { $($acc:tt)* }) => {
+        $next! { $($rest,)* { $($acc)* } }
+    };
+}
+
+pub(crate) use settings_appearance_entries;

crates/i18n/src/catalog/settings/download.rs

@@ -0,0 +1,12 @@
+//! 设置页「Downloads」分组文案：**预留**（页面侧的真控件还没接）。
+//!
+//! 加 key 时把条目写进 `$($acc)*` 后面即可（形状见 [`crate::catalog`] 的「域装配」一节）。
+//! 现在没有条目，所以本宏是**空转移器**：只把累积表原样交给下一个域。
+
+macro_rules! settings_download_entries {
+    ($next:ident, $($rest:ident,)* { $($acc:tt)* }) => {
+        $next! { $($rest,)* { $($acc)* } }
+    };
+}
+
+pub(crate) use settings_download_entries;

crates/i18n/src/catalog/settings/general.rs

@@ -0,0 +1,19 @@
+//! 设置页「General」分组文案：语言（Theme / Startup page / Close button 的 key 还没建）。
+//!
+//! 域文件的形状见 [`crate::catalog`] 的「域装配」一节。
+
+macro_rules! settings_general_entries {
+    ($next:ident, $($rest:ident,)* { $($acc:tt)* }) => {
+        $next! { $($rest,)* {
+            $($acc)*
+            // ── 设置
+            SettingsLanguage => ("Language", "界面语言"),
+            SettingsLanguageHint => (
+                "Switches the interface language. Chinese text needs a Chinese font.",
+                "切换界面语言。显示中文需要中文字体。"
+            ),
+        } }
+    };
+}
+
+pub(crate) use settings_general_entries;

crates/i18n/src/catalog/settings/java.rs

@@ -0,0 +1,12 @@
+//! 设置页「Java」分组文案：**预留**（页面侧的真控件还没接）。
+//!
+//! 加 key 时把条目写进 `$($acc)*` 后面即可（形状见 [`crate::catalog`] 的「域装配」一节）。
+//! 现在没有条目，所以本宏是**空转移器**：只把累积表原样交给下一个域。
+
+macro_rules! settings_java_entries {
+    ($next:ident, $($rest:ident,)* { $($acc:tt)* }) => {
+        $next! { $($rest,)* { $($acc)* } }
+    };
+}
+
+pub(crate) use settings_java_entries;

crates/i18n/src/catalog/settings/mod.rs

@@ -0,0 +1,28 @@
+//! 设置页文案：**一个分组一个文件**，与页面侧的 `pages/settings/**` 同构。
+//!
+//! 为什么拆到这个粒度：设置页正文接下来由四条并行 mission 分别接（java / download /
+//! language+appearance / ai+about），它们都会往设置页加 key。一个分组一个文件之后，每条线只改
+//! 自己那个文件，`catalog.rs` 的装配链一行都不用动（链里已经把这五个域接好了）。
+//!
+//! | 文件 | 分组（`pages/settings` 的 `GROUPS`） | 现状 |
+//! |---|---|---|
+//! | [`general`] | General（Language / Theme / Startup page / Close button） | 2 条 key（语言） |
+//! | [`appearance`] | Appearance（Density / Corner style / Motion / Text scale） | 预留，暂无 key |
+//! | [`java`] | Java（Runtime / Default memory / JVM arguments） | 预留，暂无 key |
+//! | [`download`] | Downloads（Preferred source / Concurrency / Verify checksums） | 预留，暂无 key |
+//! | [`ai`] | AI / About（页面上还没有这个分组） | 预留，暂无 key |
+//!
+//! 「预留」的文件里是**空转移器**（只把累积表原样交给下一个域）：加 key 时把条目写进它
+//! `$($acc)*` 后面即可——签名不用改，`catalog.rs` 不用碰，跨线零冲突。
+
+mod ai;
+mod appearance;
+mod download;
+mod general;
+mod java;
+
+pub(crate) use ai::settings_ai_entries;
+pub(crate) use appearance::settings_appearance_entries;
+pub(crate) use download::settings_download_entries;
+pub(crate) use general::settings_general_entries;
+pub(crate) use java::settings_java_entries;

crates/i18n/src/catalog/tests.rs

@@ -162,3 +162,40 @@ fn render_substitutes_and_keeps_unfilled_placeholders_visible() {
     assert_eq!(zh.text(Key::InstancesNew), "新建实例");
     assert_eq!(zh.lang(), Lang::ZhCn);
 }
+
+/// M99：把单张条目表按域拆到 `catalog/<域>.rs` 之后，`key -> (en, zh-CN)` 必须**逐条逐字节**不变。
+///
+/// **抓得住**：① 某个 key 整条被搬丢（金表有、现在没有 ⇒ 条数或 key 名对不上）；② 两条 key 的译文
+/// 互抄 / 同 key 被覆盖成别人的译文（该行 en 或 zh 不等）；③ 某条译文改了一个字符（逐字节比，
+/// **不是**数条数——「A 丢了一条、B 复制成两条」条数照旧）；④ 域的顺序被调换（`Key` 的 `Ord` 与
+/// `entries()` 的声明顺序都靠它，金表按原顺序比）。
+/// **抓不住**：译文本身翻得对不对——金表是「拆分前那一份」的快照，只能证明没变，不能证明翻得好。
+///
+/// 金表怎么来的：拆分前在这里临时加过一条 `println!("GOLD\t{}\t{}\t{}", …)` 的用例，把
+/// `Key::ALL` ×（`Catalog::of(En)`, `Catalog::of(ZhCn)`）导出成 72 行 TSV，再原样抄成
+/// `catalog/golden.rs`；那条导出用例随后已删除（不在提交里）。
+#[test]
+fn split_keeps_every_translation() {
+    let en = Catalog::of(Lang::En);
+    let zh = Catalog::of(Lang::ZhCn);
+    let actual = Key::ALL
+        .iter()
+        .map(|key| (key.name(), en.text(*key), zh.text(*key)))
+        .collect::<Vec<_>>();
+
+    assert_eq!(
+        actual.len(),
+        super::golden::GOLDEN.len(),
+        "key 条数与拆分前不一致（某条被搬丢，或多出来一条）"
+    );
+
+    for (index, expected) in super::golden::GOLDEN.iter().enumerate() {
+        let got = actual[index];
+        assert_eq!(
+            got.0, expected.0,
+            "第 {index} 条的 key 变了：拆分的域顺序被打乱，或某条被搬到了别处"
+        );
+        assert_eq!(got.1, expected.1, "{} 的英文译文变了", expected.0);
+        assert_eq!(got.2, expected.2, "{} 的中文译文变了", expected.0);
+    }
+}