chore: 清理敏感与开发文档，仅同步代码

- 永久忽略并从仓库移除 开发文档/
- 移除并忽略 .env 与小程序私有配置
- 同步小程序/管理端/API与脚本改动

Made-with: Cursor

scripts/test/miniapp/test_config.py

@@ -0,0 +1,17 @@
+# -*- coding: utf-8 -*-
+"""
+小程序公开接口测试。GET /api/miniprogram/config 无需鉴权。
+"""
+import pytest
+import requests
+
+
+def test_config_public(base_url):
+    """GET /api/miniprogram/config 返回配置"""
+    r = requests.get(f"{base_url}/api/miniprogram/config", timeout=10)
+    assert r.status_code == 200
+    data = r.json()
+    assert data.get("success") is True
+    assert "prices" in data
+    assert "features" in data
+    assert "mpConfig" in data or "mp_config" in data