fix ：日常监督结果日期为空

server/apps/supervision/migrations/0067_auto_20240507_1751.py

@@ -0,0 +1,23 @@
+# Generated by Django 3.2.12 on 2024-05-07 09:51
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('supervision', '0066_auto_20240401_1641'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='oinspect',
+            name='result_date',
+            field=models.DateField(blank=True, default='', null=True, verbose_name='检查结果日期'),
+        ),
+        migrations.AlterField(
+            model_name='pt',
+            name='certificate_date',
+            field=models.DateField(blank=True, null=True, verbose_name='证书日期'),
+        ),
+    ]