feat: 重构战报弹窗与模拟器视图，优化UI与逻辑

重构BattleReportDialog和BattleSimulatorView相关静态资源，替换旧版JS/CSS文件，提升界面一致性和交互体验。新增和优化空状态、滚动区域等通用UI组件，移除部分冗余composable，完善多语言内容。引入导弹逻辑，补充版本检测工具，提升整体代码结构和可维护性。

src/views/FleetView.vue

@@ -332,7 +332,7 @@
   import { useNPCStore } from '@/stores/npcStore'
   import { useI18n } from '@/composables/useI18n'
   import { useGameConfig } from '@/composables/useGameConfig'
-  import { computed, ref, onMounted, onUnmounted } from 'vue'
+  import { computed, ref, onMounted, onUnmounted, watch } from 'vue'
   import { useRoute, useRouter } from 'vue-router'
   import { ShipType, MissionType, BuildingType } from '@/types/game'
   import type { Fleet, Resources } from '@/types/game'
@@ -473,6 +473,13 @@
   // 是否为赠送模式
   const isGiftMode = ref(false)
 
+  // 监听目标NPC变化，当目标不再是NPC时自动禁用赠送模式
+  watch(targetNpc, newValue => {
+    if (!newValue && isGiftMode.value) {
+      isGiftMode.value = false
+    }
+  })
+
   // 计算赠送的预估好感度增加值
   const calculateGiftReputation = (): number => {
     return diplomaticLogic.calculateGiftReputationGain(cargo.value)