dudu MVP：五端语音输入法初始提交

- server：Go 网关（WS 流式识别中继/计费配额/微信登录支付 mock/反馈/埋点），gummy provider 已真实联调
- desktop：Tauri 2（全局快捷键 push-to-talk/浮层/托盘/设置/登录购买/反馈/首启引导）
- android：Compose 主 App + IME（键盘内录音直传）
- ios：App + 键盘扩展（1A spike 实证键盘内不可录音，走 deep link 听写）
- design/design-pipeline：设计系统 + token 导出 iOS/Android 主题
- doc：前后端设计文档（HTML）；web：官网宣传页；todo：任务看板

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

desktop/src-tauri/Cargo.toml

@@ -0,0 +1,30 @@
+[package]
+name = "dudu-desktop"
+version = "0.1.0"
+description = "dudu 语音输入法桌面端"
+edition = "2021"
+
+[lib]
+name = "dudu_desktop_lib"
+crate-type = ["staticlib", "cdylib", "rlib"]
+
+[build-dependencies]
+tauri-build = { version = "2", features = [] }
+
+[dependencies]
+tauri = { version = "2", features = ["tray-icon"] }
+tauri-plugin-global-shortcut = "2"
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+tokio = { version = "1", features = ["rt-multi-thread", "macros", "sync", "time"] }
+tokio-tungstenite = { version = "0.24", features = ["native-tls"] }
+futures-util = "0.3"
+cpal = "0.15"
+arboard = "3"
+enigo = "0.2"
+parking_lot = "0.12"
+uuid = { version = "1", features = ["v4"] }
+reqwest = { version = "0.12", features = ["json", "multipart", "rustls-tls"], default-features = false }
+base64 = "0.22"
+log = "0.4"
+env_logger = "0.11"