feat: 初始化项目结构与核心功能

引入项目基础目录结构，包含多语言支持、主要页面与组件、核心游戏逻辑、UI 组件库、加密与本地持久化、自动化 Docker 构建流程、GitHub issue 模板（中英文）、README（中英文）、LICENSE 及开发配置文件。实现 OGame 单机版主要功能模块，为后续开发和扩展奠定基础。

src/components/ui/alert-dialog/AlertDialogContent.vue

@@ -0,0 +1,39 @@
+<template>
+  <AlertDialogPortal>
+    <AlertDialogOverlay
+      data-slot="alert-dialog-overlay"
+      class="data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 fixed inset-0 z-50 bg-black/80"
+    />
+    <AlertDialogContent
+      data-slot="alert-dialog-content"
+      v-bind="{ ...$attrs, ...forwarded }"
+      :class="
+        cn(
+          'bg-background data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 fixed top-[50%] left-[50%] z-50 grid w-full max-w-[calc(100%-2rem)] translate-x-[-50%] translate-y-[-50%] gap-4 rounded-lg border p-6 shadow-lg duration-200 sm:max-w-lg',
+          props.class
+        )
+      "
+    >
+      <slot />
+    </AlertDialogContent>
+  </AlertDialogPortal>
+</template>
+
+<script setup lang="ts">
+  import type { AlertDialogContentEmits, AlertDialogContentProps } from 'reka-ui'
+  import type { HTMLAttributes } from 'vue'
+  import { reactiveOmit } from '@vueuse/core'
+  import { AlertDialogContent, AlertDialogOverlay, AlertDialogPortal, useForwardPropsEmits } from 'reka-ui'
+  import { cn } from '@/lib/utils'
+
+  defineOptions({
+    inheritAttrs: false
+  })
+
+  const props = defineProps<AlertDialogContentProps & { class?: HTMLAttributes['class'] }>()
+  const emits = defineEmits<AlertDialogContentEmits>()
+
+  const delegatedProps = reactiveOmit(props, 'class')
+
+  const forwarded = useForwardPropsEmits(delegatedProps, emits)
+</script>