feat:1.数据库存储功能添加（初版）2.后端REST API版本代码清理

frontend/src/layout/components/Main/index.vue

@@ -3,6 +3,7 @@ import Task from './Task.vue'
 import TaskTemplate from './TaskTemplate/index.vue'
 import { nextTick, ref } from 'vue'
 
+const taskRef = ref<{ currentTaskID: string }>()
 const taskTemplateRef = ref<{ changeTask: () => void; clear: () => void }>()
 
 function handleSearch() {
@@ -10,12 +11,21 @@ function handleSearch() {
     taskTemplateRef.value?.changeTask()
   })
 }
+
+// 获取当前任务的 TaskID
+function getTaskID(): string {
+  return taskRef.value?.currentTaskID || ''
+}
+
+defineExpose({
+  getTaskID
+})
 </script>
 
 <template>
   <div class="p-[24px] h-[calc(100%-60px)]">
-    <Task @search="handleSearch" @search-start="taskTemplateRef?.clear" />
-    <TaskTemplate ref="taskTemplateRef" />
+    <Task ref="taskRef" @search="handleSearch" @search-start="taskTemplateRef?.clear" />
+    <TaskTemplate ref="taskTemplateRef" :TaskID="taskRef?.currentTaskID" />
   </div>
 </template>