feat(update-center): 实现集中式软件更新中心功能

新增更新中心模块，支持管理 APM 和传统 deb 软件更新任务
- 添加更新任务队列管理、状态跟踪和日志记录功能
- 实现更新项忽略配置持久化存储
- 新增更新确认对话框和迁移提示
- 优化主窗口关闭时的任务保护机制
- 添加单元测试覆盖核心逻辑

src/components/UpdateCenterModal.vue

@@ -0,0 +1,93 @@
+<template>
+  <Transition
+    enter-active-class="duration-200 ease-out"
+    enter-from-class="opacity-0 scale-95"
+    enter-to-class="opacity-100 scale-100"
+    leave-active-class="duration-150 ease-in"
+    leave-from-class="opacity-100 scale-100"
+    leave-to-class="opacity-0 scale-95"
+  >
+    <div
+      v-if="show"
+      class="fixed inset-0 z-50 flex items-start justify-center bg-slate-900/70 px-4 py-6 lg:py-10"
+    >
+      <div
+        class="flex max-h-[90vh] w-full max-w-6xl flex-col overflow-hidden rounded-3xl border border-white/10 bg-white/95 shadow-2xl dark:border-slate-800 dark:bg-slate-900"
+      >
+        <UpdateCenterToolbar
+          :search-query="store.searchQuery.value"
+          :selected-count="selectedCount"
+          @refresh="store.refresh"
+          @start-selected="emit('request-start-selected')"
+          @request-close="store.requestClose"
+          @update:search-query="emit('update:search-query', $event)"
+        />
+
+        <div
+          v-if="store.snapshot.value.warnings.length > 0"
+          class="mx-6 mt-4 rounded-2xl border border-amber-200 bg-amber-50/80 px-4 py-3 text-sm text-amber-900 dark:border-amber-500/30 dark:bg-amber-500/10 dark:text-amber-100"
+        >
+          <p
+            v-for="warning in store.snapshot.value.warnings"
+            :key="warning"
+            class="leading-6"
+          >
+            {{ warning }}
+          </p>
+        </div>
+
+        <div
+          class="grid min-h-0 flex-1 gap-0 lg:grid-cols-[minmax(0,2fr)_minmax(320px,1fr)]"
+        >
+          <UpdateCenterList
+            :items="store.filteredItems.value"
+            :tasks="store.snapshot.value.tasks"
+            :selected-task-keys="store.selectedTaskKeys.value"
+            @toggle-selection="emit('toggle-selection', $event)"
+          />
+          <UpdateCenterLogPanel :tasks="store.snapshot.value.tasks" />
+        </div>
+
+        <UpdateCenterMigrationConfirm
+          :show="store.showMigrationConfirm.value"
+          @close="emit('dismiss-migration-confirm')"
+          @confirm="emit('confirm-migration-start')"
+        />
+        <UpdateCenterCloseConfirm
+          :show="store.showCloseConfirm.value"
+          @close="emit('dismiss-close-confirm')"
+          @confirm="emit('confirm-close')"
+        />
+      </div>
+    </div>
+  </Transition>
+</template>
+
+<script setup lang="ts">
+import { computed } from "vue";
+
+import type { UpdateCenterStore } from "@/modules/updateCenter";
+
+import UpdateCenterCloseConfirm from "./update-center/UpdateCenterCloseConfirm.vue";
+import UpdateCenterList from "./update-center/UpdateCenterList.vue";
+import UpdateCenterLogPanel from "./update-center/UpdateCenterLogPanel.vue";
+import UpdateCenterMigrationConfirm from "./update-center/UpdateCenterMigrationConfirm.vue";
+import UpdateCenterToolbar from "./update-center/UpdateCenterToolbar.vue";
+
+const emit = defineEmits<{
+  (e: "update:search-query", value: string): void;
+  (e: "toggle-selection", taskKey: string): void;
+  (e: "request-start-selected"): void;
+  (e: "confirm-migration-start"): void;
+  (e: "dismiss-migration-confirm"): void;
+  (e: "confirm-close"): void;
+  (e: "dismiss-close-confirm"): void;
+}>();
+
+const props = defineProps<{
+  show: boolean;
+  store: UpdateCenterStore;
+}>();
+
+const selectedCount = computed(() => props.store.getSelectedItems().length);
+</script>