feat: 位置字段改名为机房，移动到ID列后面；优化列表列宽和截断

assetapp/migrations/0008_alter_asset_location.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.2.13 on 2026-04-28 04:54
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('assetapp', '0007_asset_business_type_asset_gpu_count_asset_gpu_type_and_more'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='asset',
+            name='location',
+            field=models.CharField(blank=True, default='', help_text='楼层/房间/区域', max_length=200, verbose_name='机房'),
+        ),
+    ]