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/sidebar/utils.ts

@@ -0,0 +1,19 @@
+import type { ComputedRef, Ref } from 'vue'
+import { createContext } from 'reka-ui'
+
+export const SIDEBAR_COOKIE_NAME = 'sidebar_state'
+export const SIDEBAR_COOKIE_MAX_AGE = 60 * 60 * 24 * 7
+export const SIDEBAR_WIDTH = '16rem'
+export const SIDEBAR_WIDTH_MOBILE = '18rem'
+export const SIDEBAR_WIDTH_ICON = '3rem'
+export const SIDEBAR_KEYBOARD_SHORTCUT = 'b'
+
+export const [useSidebar, provideSidebarContext] = createContext<{
+  state: ComputedRef<'expanded' | 'collapsed'>
+  open: Ref<boolean>
+  setOpen: (value: boolean) => void
+  isMobile: Ref<boolean>
+  openMobile: Ref<boolean>
+  setOpenMobile: (value: boolean) => void
+  toggleSidebar: () => void
+}>('Sidebar')