feat(domain): 新增账户余额和积分相关实体及接口

- 添加了 PointsBalance、AccountBalance、PointType 等实体类
- 新增了 AccountRepoInterface 接口及其实现类 AccountBalanceRepo
- 引入了 Carbon库用于处理时间相关的逻辑
- 删除了未使用的 WechatService 类
- 更新了 ConfigProvider 以注册新的 Repository
- 修改了 composer.json 和 composer.lock 文件，添加了新的依赖

composer.json

@@ -15,6 +15,7 @@
   },
   "require": {
     "php": ">=8.2",
+    "ext-bcmath": "*",
     "composer/composer": ">=2.7.7",
     "hyperf/config": "~3.1.0",
     "hyperf/constants": "3.1.*",
@@ -23,13 +24,15 @@
     "hyperf/guzzle": "3.1.*",
     "hyperf/http-server": "3.1.*",
     "moneyphp/money": "^4.1",
+    "nesbot/carbon": "*",
     "singularity/hdk-core": "^1.0.0"
   },
   "require-dev": {
     "firebase/php-jwt": "^6.8.0",
     "hyperf/testing": "^3.1",
     "friendsofhyperf/pest-plugin-hyperf": "3.1.*",
-    "swoole/ide-helper": "^4.8.13"
+    "swoole/ide-helper": "^4.8.13",
+    "nesbot/carbon": "^2.0"
   },
   "minimum-stability": "beta",
   "prefer-stable": true,