feat(models): add Chinese verbose_name to all 74 models (Phase 4.0)

为所有 Django 模型添加 Meta.verbose_name 和 verbose_name_plural（中文表名），
覆盖 10 个 app 的全部 74 个业务模型。

Phase 4.0 范围：
- 仅 Meta 类级别中文名（用于 Django Admin、drf-spectacular OpenAPI title、错误信息）
- 字段级 verbose_name= 和 help_text= 留待 Phase 4.1（待 PM 补全 DATA_MODEL 后同步）

变更：
- 20 个 models 文件改动（每个模型 +2 行）
- 8 个 0002/0003 迁移文件（Meta options 变更）
- apps/tenant/migrations/0001_initial.py（之前漏生成的 tenant 模型迁移）

manage.py check: 0 issues。

apps/setting/migrations/0002_alter_fieldrequirementrule_options_and_more.py

@@ -0,0 +1,29 @@
+# Generated by Django 4.2.16 on 2026-04-29 11:07
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('setting', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='fieldrequirementrule',
+            options={'verbose_name': '字段必填规则', 'verbose_name_plural': '字段必填规则'},
+        ),
+        migrations.AlterModelOptions(
+            name='lookupgroup',
+            options={'verbose_name': '查找组', 'verbose_name_plural': '查找组'},
+        ),
+        migrations.AlterModelOptions(
+            name='lookupitem',
+            options={'verbose_name': '查找项', 'verbose_name_plural': '查找项'},
+        ),
+        migrations.AlterModelOptions(
+            name='tenantsetting',
+            options={'verbose_name': '租户设置', 'verbose_name_plural': '租户设置'},
+        ),
+    ]

apps/setting/models/lookup.py

@@ -14,6 +14,8 @@ class LookupGroup(UUIDPrimaryKeyModel):
 
     class Meta:
         db_table = "lookup_groups"
+        verbose_name = "查找组"
+        verbose_name_plural = "查找组"
         constraints = [
             models.UniqueConstraint(
                 fields=["module", "key"], name="uq_lookup_groups_module_key"
@@ -42,6 +44,8 @@ class LookupItem(UUIDPrimaryKeyModel):
 
     class Meta:
         db_table = "lookup_items"
+        verbose_name = "查找项"
+        verbose_name_plural = "查找项"
         constraints = [
             models.UniqueConstraint(
                 fields=["group", "value"], name="uq_lookup_items_group_value"

apps/setting/models/setting.py

@@ -32,6 +32,8 @@ class TenantSetting(UUIDPrimaryKeyModel):
 
     class Meta:
         db_table = "tenant_settings"
+        verbose_name = "租户设置"
+        verbose_name_plural = "租户设置"
         constraints = [
             models.UniqueConstraint(
                 fields=["category", "key"], name="uq_tenant_settings_cat_key"
@@ -61,6 +63,8 @@ class FieldRequirementRule(UUIDPrimaryKeyModel):
 
     class Meta:
         db_table = "field_requirement_rules"
+        verbose_name = "字段必填规则"
+        verbose_name_plural = "字段必填规则"
         constraints = [
             models.UniqueConstraint(
                 fields=["module", "entity_type", "trade_status", "field_key"],