fix(sterilization, strain): 格式化日期字段只保留年月日

统一处理两个页面的日期数据，截取日期字符串前10位来移除时分秒信息

src/view/sterilization/add.vue

@@ -168,7 +168,7 @@ const loadData = async (id: number) => {
   if (d) {
     state.form = {
       id: d.id || 0,
-      recordDate: d.recordDate || '',
+      recordDate: d.recordDate ? d.recordDate.slice(0, 10) : '',
       operatorId: d.operatorId || 0,
       operator: d.operator || '',
       sterilizationItems: d.sterilizationItems || '',

src/view/strain/usage/add.vue

@@ -120,7 +120,7 @@ const loadData = async (id: number) => {
     state.form = {
       id: d.id || 0,
       strainName: d.strainName || '',
-      usageDate: d.usageDate || '',
+      usageDate: d.usageDate ? d.usageDate.slice(0, 10) : '',
       usagePersonId: d.usagePersonId || 0,
       usagePerson: d.usagePerson || '',
       usageQuantity: d.usageQuantity || '',