feat: 新增战报弹窗与舰队模拟器，重构UI组件

新增 BattleReportDialog、SpyReportDialog、NumberWithTooltip 等组件，完善舰队模拟器功能。重构并引入 Sheet、Sidebar、Tooltip、Skeleton 等 UI 组件，优化界面结构。实现 battle.worker 支持战斗计算，增加 universeStore、fleetStorageLogic 等核心逻辑，完善多语言与类型定义。

src/components/ui/separator/Separator.vue

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+<script setup lang="ts">
+import type { SeparatorProps } from "reka-ui"
+import type { HTMLAttributes } from "vue"
+import { reactiveOmit } from "@vueuse/core"
+import { Separator } from "reka-ui"
+import { cn } from "@/lib/utils"
+
+const props = withDefaults(defineProps<
+  SeparatorProps & { class?: HTMLAttributes["class"] }
+>(), {
+  orientation: "horizontal",
+  decorative: true,
+})
+
+const delegatedProps = reactiveOmit(props, "class")
+</script>
+
+<template>
+  <Separator
+    data-slot="separator"
+    v-bind="delegatedProps"
+    :class="
+      cn(
+        'bg-border shrink-0 data-[orientation=horizontal]:h-px data-[orientation=horizontal]:w-full data-[orientation=vertical]:h-full data-[orientation=vertical]:w-px',
+        props.class,
+      )
+    "
+  />
+</template>

src/components/ui/separator/index.ts

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+export { default as Separator } from "./Separator.vue"