refactor(game): 重构项目结构,优化链路, 移动端适配

- 移除 useGameBoardVm 数据层实施说明文档
- 移除核心玩法与前端规则摘要文档
- 移除游戏模块数据与界面分层第一阶段实施稿文档
- 清理与数据层重构相关的技术方案说明
- 删除关于 PC 和 Mobile 界面分离的设计规划
- 移除 view-model hooks 架构设计相关内容

src/hooks/use-send-sms-code.ts

@@ -0,0 +1,50 @@
+import { useMutation } from '@tanstack/react-query'
+import { useEffect, useState } from 'react'
+import { sendSmsCode } from '@/api'
+import { SMS_CODE_COOLDOWN_FALLBACK_SECONDS } from '@/constants'
+import i18n from '@/i18n'
+import { notify } from '@/lib/notify'
+import { toAuthSubmitErrorKey } from './auth-error-key'
+
+export function useSendSmsCode() {
+  const [remainingSeconds, setRemainingSeconds] = useState(0)
+  const mutation = useMutation({
+    mutationFn: (mobile: string) => sendSmsCode({ mobile: mobile.trim() }),
+    onError: (error) => {
+      const errorKey = toAuthSubmitErrorKey(error, 'register')
+
+      notify.error(
+        errorKey
+          ? i18n.t(errorKey)
+          : i18n.t('auth.register.sms.errors.submitFailed'),
+      )
+    },
+    onSuccess: (result) => {
+      setRemainingSeconds(
+        result.expiresIn > 0
+          ? result.expiresIn
+          : SMS_CODE_COOLDOWN_FALLBACK_SECONDS,
+      )
+      notify.success(i18n.t('auth.register.sms.success'))
+    },
+  })
+
+  useEffect(() => {
+    if (remainingSeconds <= 0) {
+      return
+    }
+
+    const timer = window.setTimeout(() => {
+      setRemainingSeconds((value) => Math.max(0, value - 1))
+    }, 1000)
+
+    return () => window.clearTimeout(timer)
+  }, [remainingSeconds])
+
+  return {
+    canSend: !mutation.isPending && remainingSeconds <= 0,
+    isSending: mutation.isPending,
+    remainingSeconds,
+    send: mutation.mutateAsync,
+  }
+}