feat: 更新物料管理模块功能

1. 新增采购计划草稿存储功能
2. 优化出入库单和备件管理界面
3. 完善表单验证和交互逻辑
4. 调整表格列对齐方式
5. 移除冗余的审批备注字段
ps:出入口页面未完成

src/store/modules/procurementDraft.ts

@@ -0,0 +1,80 @@
+import { defineStore } from 'pinia';
+import { ref } from 'vue';
+import $cache from '@/plugins/cache';
+
+// 草稿数据类型
+export interface ProcurementDraft {
+  id: string;
+  draftNumber: string;
+  planName: string;
+  saveTime: string;
+  content: any;
+}
+
+// 保存草稿到本地存储
+const saveDraftsToStorage = (drafts: ProcurementDraft[]) => {
+  $cache.local.setJSON('procurementDrafts', drafts);
+};
+
+// 从本地存储获取草稿
+const getDraftsFromStorage = (): ProcurementDraft[] => {
+  const stored = $cache.local.getJSON('procurementDrafts');
+  return stored && Array.isArray(stored) ? stored : [];
+};
+
+export const useProcurementDraftStore = defineStore('procurementDraft', () => {
+  const draftList = ref<ProcurementDraft[]>(getDraftsFromStorage());
+
+  // 保存草稿
+  const saveDraft = (planName: string, content: any): ProcurementDraft => {
+    const today = new Date();
+    const dateStr = today.getFullYear() + '-' + 
+                   String(today.getMonth() + 1).padStart(2, '0') + '-' + 
+                   String(today.getDate()).padStart(2, '0');
+    const randomNum = Math.floor(100 + Math.random() * 900);
+    const draftNumber = `DRAFT-${dateStr}-${randomNum}`;
+    
+    const newDraft: ProcurementDraft = {
+      id: `draft_${Date.now()}_${randomNum}`,
+      draftNumber,
+      planName,
+      saveTime: new Date().toLocaleString(),
+      content: JSON.parse(JSON.stringify(content)) // 深拷贝内容
+    };
+    
+    // 添加到草稿列表并保存到本地存储
+    draftList.value.unshift(newDraft);
+    saveDraftsToStorage(draftList.value);
+    
+    return newDraft;
+  };
+
+  // 获取草稿列表
+  const getDraftList = (): ProcurementDraft[] => {
+    return draftList.value;
+  };
+
+  // 获取单个草稿
+  const getDraft = (draftId: string): ProcurementDraft | undefined => {
+    return draftList.value.find(draft => draft.id === draftId);
+  };
+
+  // 删除草稿
+  const deleteDraft = (draftId: string): boolean => {
+    const index = draftList.value.findIndex(draft => draft.id === draftId);
+    if (index !== -1) {
+      draftList.value.splice(index, 1);
+      saveDraftsToStorage(draftList.value);
+      return true;
+    }
+    return false;
+  };
+
+  return {
+    draftList,
+    saveDraft,
+    getDraftList,
+    getDraft,
+    deleteDraft
+  };
+});