feat: 小程序客服话术表与自动回复接口

- 新增 MiniappScriptScene / MiniappScriptAutoReply 模型与迁移
- 新增 /peizhi/huashuhq、/peizhi/huashu_match 接口及 Admin 配置

Co-authored-by: Cursor <cursoragent@cursor.com>

config/admin.py

@@ -1 +1,16 @@
 from django.contrib import admin
+from .models import MiniappScriptScene, MiniappScriptAutoReply
+
+
+@admin.register(MiniappScriptScene)
+class MiniappScriptSceneAdmin(admin.ModelAdmin):
+    list_display = ('club_id', 'scene_key', 'title', 'enabled', 'UpdateTime')
+    list_filter = ('club_id', 'enabled')
+    search_fields = ('scene_key', 'title', 'content')
+
+
+@admin.register(MiniappScriptAutoReply)
+class MiniappScriptAutoReplyAdmin(admin.ModelAdmin):
+    list_display = ('club_id', 'keyword', 'reply_type', 'sort_order', 'enabled', 'UpdateTime')
+    list_filter = ('club_id', 'reply_type', 'enabled')
+    search_fields = ('keyword', 'reply_content')