feat: 补齐客户端/管理端服务模块与数据库 schema，完善登录短信、法大大签署及公共函数

uniCloud-tcb/database/opendb-tempdata.schema.json

@@ -0,0 +1 @@
+{"bsonType":"object","required":["value","expired"],"permission":{"read":false,"create":false,"update":false,"delete":false},"properties":{"_id":{"description":"ID，系统自动生成"},"value":{"description":"值"},"expired":{"description":"过期时间","bsonType":"timestamp"}},"version":"0.0.1"}