docs(webrtc_controller_flutter): 更新项目文档以反映重构后的架构

AGENTS.md 与 README.md 同步更新：根据实际代码结构重写目录树、技术栈、架构分层及编码规范，移除旧版内联示例并补充新的开发约定与代码生成命令。

webrtc_controller_flutter/lib/l10n/app_zh.arb

@@ -0,0 +1,67 @@
+{
+  "@@locale": "zh",
+  "appTitle": "WebRTC 控制端",
+  "login": "登录",
+  "logout": "退出登录",
+  "cancel": "取消",
+  "confirm": "确定",
+  "connect": "连接",
+  "connecting": "正在连接...",
+  "loginAccount": "登录账号",
+  "connectDevice": "连接被控设备",
+  "serverUrl": "信令服务器地址:",
+  "serverUrlPlaceholder": "wss://www.ttstd.com/signal",
+  "deviceId": "本机设备ID（连接后由服务端下发，无需填写）:",
+  "deviceIdPlaceholder": "连接后由服务端下发",
+  "targetDeviceId": "目标被控设备ID:",
+  "targetDeviceIdPlaceholder": "被控端设备ID",
+  "username": "用户名",
+  "password": "密码",
+  "loginFailed": "登录失败：{error}",
+  "usernamePasswordRequired": "请输入用户名和密码",
+  "serverAndTargetRequired": "请填写服务器地址和目标设备ID",
+  "authTitle": "连接鉴权",
+  "authNone": "免密连接",
+  "authNoneDesc": "被控端弹出手动确认框，无需验证码或密码",
+  "authCode": "动态验证码",
+  "authCodeDesc": "使用一次性动态验证码鉴权",
+  "authPassword": "固定密码",
+  "authPasswordDesc": "使用固定连接密码鉴权",
+  "authNonePlaceholder": "免密连接，无需填写",
+  "authPasswordPlaceholder": "请输入固定密码",
+  "authCodePlaceholder": "请输入动态验证码",
+  "authValueRequired": "请输入验证码或密码",
+  "statusStopped": "状态: 已停止",
+  "statusConnectingSignal": "状态: 正在连接信令服务器...",
+  "statusConnected": "状态: 已连接 - 远程控制中",
+  "statusDisconnected": "状态: 远端已断开",
+  "statusSignalConnected": "状态: 已连接信令服务器，等待注册...",
+  "statusRegistered": "状态: 已注册 ({deviceId})，正在发起连接...",
+  "statusAuthFailed": "状态: 认证失败 - {error}",
+  "statusConnectError": "状态: 连接错误 - {error}",
+  "statusTargetAccept": "状态: 被控端已接受连接，正在建立连接...",
+  "statusTokenRefreshFailed": "状态: 令牌刷新失败 - {error}",
+  "statusForceLogout": "状态: 账号已在其他位置登录，已强制下线",
+  "connectedBindings": "已绑定设备: {uids}",
+  "resolutionSwitch": "切换分辨率",
+  "fpsSwitch": "切换帧率",
+  "selfCodec": "自编码",
+  "record": "录制",
+  "stop": "停止",
+  "recording": "录制中...",
+  "recordSaved": "已保存：{path}",
+  "recordStopped": "录制已停止",
+  "recordNoStream": "尚未连接或没有视频画面，无法录制",
+  "recordSwitchToStd": "正在切回标准模式以开始录制...",
+  "recordStartFailed": "开始录制失败：{error}",
+  "recordNoVideoTrack": "尚未接收到视频画面，无法录制",
+  "selfCodecNotSupported": "当前平台不支持自编码硬解，已回退到 WebRTC 媒体流。",
+  "iceDisconnected": "ICE 连接已断开",
+  "targetOffline": "目标被控端不在线，请确认设备已开启并连接服务器",
+  "connectionFailed": "连接失败：{error}",
+  "tokenExpired": "登录已失效，请重新登录后再连接。",
+  "forceLogout": "账号已在其他位置登录，已强制下线。",
+  "loginFirst": "请先登录后再连接",
+  "pleaseFillAuth": "请输入验证码或密码",
+  "streamModeSelfCodecDesc": "当前平台不支持自编码硬解。"
+}