feat: new module for daily settlement

settlement/admin.py

@@ -0,0 +1,27 @@
+"""日结模块管理后台配置"""
+from django.contrib import admin
+from .models import DailySettlementConfig, NotificationChannelEnum, SettlementModuleEnum
+
+
+@admin.register(DailySettlementConfig)
+class DailySettlementConfigAdmin(admin.ModelAdmin):
+    list_display = ['id', 'merchant', 'notification_enabled', 'notification_channel', 'created_at']
+    list_filter = ['notification_enabled', 'notification_channel']
+    search_fields = ['merchant__name', 'description']
+    
+    fieldsets = (
+        ('基本信息', {
+            'fields': ('merchant', 'description')
+        }),
+        ('统计配置', {
+            'fields': ('settlement_modules',)
+        }),
+        ('通知配置', {
+            'fields': ('notification_enabled', 'notification_channel')
+        }),
+    )
+    
+    def get_readonly_fields(self, request, obj=None):
+        if obj:
+            return ['merchant']
+        return []