feat: 新增NPC与外交逻辑，优化UI组件结构

重构并精简了部分UI组件，移除冗余弹窗与详情组件，新增NPC相关逻辑（npcBehaviorLogic、npcGrowthLogic、npcStore等）及外交逻辑（diplomaticLogic、DiplomacyView）。完善分页、标签、复选框等通用UI组件。优化战报弹窗，调整README下载链接为相对路径，修复部分国际化内容。

src/components/ui/checkbox/Checkbox.vue

@@ -0,0 +1,35 @@
+<template>
+  <CheckboxRoot
+    v-slot="slotProps"
+    data-slot="checkbox"
+    v-bind="forwarded"
+    :class="
+      cn(
+        'peer border-input data-[state=checked]:bg-primary data-[state=checked]:text-primary-foreground data-[state=checked]:border-primary focus-visible:border-ring focus-visible:ring-ring/50 aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive size-4 shrink-0 rounded-[4px] border shadow-xs transition-shadow outline-none focus-visible:ring-[3px] disabled:cursor-not-allowed disabled:opacity-50',
+        props.class
+      )
+    "
+  >
+    <CheckboxIndicator data-slot="checkbox-indicator" class="grid place-content-center text-current transition-none">
+      <slot v-bind="slotProps">
+        <Check class="size-3.5" />
+      </slot>
+    </CheckboxIndicator>
+  </CheckboxRoot>
+</template>
+
+<script setup lang="ts">
+  import type { CheckboxRootEmits, CheckboxRootProps } from 'reka-ui'
+  import type { HTMLAttributes } from 'vue'
+  import { reactiveOmit } from '@vueuse/core'
+  import { Check } from 'lucide-vue-next'
+  import { CheckboxIndicator, CheckboxRoot, useForwardPropsEmits } from 'reka-ui'
+  import { cn } from '@/lib/utils'
+
+  const props = defineProps<CheckboxRootProps & { class?: HTMLAttributes['class'] }>()
+  const emits = defineEmits<CheckboxRootEmits>()
+
+  const delegatedProps = reactiveOmit(props, 'class')
+
+  const forwarded = useForwardPropsEmits(delegatedProps, emits)
+</script>