refactor: migrate to Tencent Cloud backend

miniprogram/config/env.js

@@ -0,0 +1,12 @@
+var ENV = 'test'
+
+var API_BASES = {
+  local: 'http://localhost:3000',
+  test: 'https://1426323813-ilxkhlxf4p.ap-guangzhou.tencentscf.com',
+  prod: 'https://replace-with-scf-prod-url'
+}
+
+module.exports = {
+  ENV: ENV,
+  API_BASE: API_BASES[ENV]
+}