remove zht language option

README.md

@@ -7,8 +7,7 @@
 </p>
 <p align="center">
     <a href="README.md">English</a> |
-    <a href="README.zh.md">简体中文</a> |
-    <a href="README.zht.md">繁體中文</a>
+    <a href="README.zh.md">简体中文</a>
 </p>
 
 echo is a native desktop music player and Spotify client written in Rust. echo brings your entire Spotify library — liked songs, playlists, albums, and the artists you follow — plus your local music files into one fast, keyboard-friendly app, with full playback control, synced lyrics, and dynamic theming. A companion terminal client (`spotify`) ships in the same install for when you'd rather live in the terminal.

README.zh.md

@@ -7,8 +7,7 @@
 </p>
 <p align="center">
     <a href="README.md">English</a> |
-    <a href="README.zh.md">简体中文</a> |
-    <a href="README.zht.md">繁體中文</a>
+    <a href="README.zh.md">简体中文</a>
 </p>
 
 echo 是一款用 Rust 编写的原生桌面音乐播放器和 Spotify 客户端。echo 将您的整个 Spotify 库——喜欢的歌曲、播放列表、专辑以及关注的艺术家——加上本地音乐文件汇集到一个快速、键盘友好的应用中，提供完整的播放控制、同步歌词和动态主题。同一安装包还附带一个终端客户端（`spotify`），在您想待在终端里时随时可用。

crates/echo-core/src/commands.rs

@@ -30,7 +30,7 @@ pub const COMMANDS: &[(&str, &str)] = &[
     ("vis", "Toggle the audio visualizer"),
     ("visbins <5-32>", "Visualizer frequency bands"),
     ("album", "Jump to the selected track's album"),
-    ("lang <en|zh-CN|zh-TW>", "Switch language"),
+    ("lang <en|zh|zh-CN>", "Switch language"),
     ("newplaylist <name>", "Create a Spotify playlist"),
     ("newlocalplaylist <name>", "Create a local playlist"),
     (
@@ -104,12 +104,7 @@ fn generate_command_suggestions(state: &AppState) -> Vec<String> {
                     .collect()
             }
             "lang" => {
-                let options = vec![
-                    "en".to_string(),
-                    "zh".to_string(),
-                    "zh-CN".to_string(),
-                    "zh-TW".to_string(),
-                ];
+                let options = vec!["en".to_string(), "zh".to_string(), "zh-CN".to_string()];
                 options
                     .into_iter()
                     .filter(|o| o.starts_with(arg_str))
@@ -565,11 +560,7 @@ fn execute(state: &mut AppState, cmd: &str) -> Option<AppEvent> {
             }
             "lang" => {
                 if let Some(lang_code) = args.next() {
-                    if lang_code == "en"
-                        || lang_code == "zh"
-                        || lang_code == "zh-CN"
-                        || lang_code == "zh-TW"
-                    {
+                    if lang_code == "en" || lang_code == "zh" || lang_code == "zh-CN" {
                         state.ui.library_config.language = lang_code.to_string();
                         state.save_library_config();
                         state.ui.status_message = Some(

crates/echo-core/src/i18n.rs

@@ -10,13 +10,10 @@ pub fn init() {
         serde_json::from_str(include_str!("../../../locales/en.json")).unwrap();
     let zh: serde_json::Value =
         serde_json::from_str(include_str!("../../../locales/zh-CN.json")).unwrap();
-    let zh_tw: serde_json::Value =
-        serde_json::from_str(include_str!("../../../locales/zh-TW.json")).unwrap();
 
     map.insert("en", en);
     map.insert("zh", zh.clone());
     map.insert("zh-CN", zh);
-    map.insert("zh-TW", zh_tw);
 
     let _ = TRANSLATIONS.set(map);
 }
@@ -56,7 +53,7 @@ mod tests {
     fn setup_uri_keys_present_in_all_locales() {
         init();
         let map = TRANSLATIONS.get().unwrap();
-        for lang in ["en", "zh-CN", "zh-TW"] {
+        for lang in ["en", "zh-CN"] {
             let setup = &map[lang]["desktop"]["setup"];
             for key in ["step2", "copy", "copied"] {
                 assert!(setup[key].is_string(), "{lang} missing desktop.setup.{key}");
@@ -68,7 +65,7 @@ mod tests {
     fn tray_keys_present_in_all_locales() {
         init();
         let map = TRANSLATIONS.get().unwrap();
-        for lang in ["en", "zh-CN", "zh-TW"] {
+        for lang in ["en", "zh-CN"] {
             let desktop = &map[lang]["desktop"];
             for key in ["window", "tray", "tray_desc"] {
                 assert!(

crates/echo-desktop/src/views.rs

@@ -5387,7 +5387,6 @@ pub fn settings_modal(
             vec![
                 ("English".into(), "lang en".into(), language == "en"),
                 ("简体".into(), "lang zh-CN".into(), language == "zh-CN"),
-                ("繁體".into(), "lang zh-TW".into(), language == "zh-TW"),
             ],
             cx,
         ),