```

feat(base): 添加邮箱注册码功能及用户注册接口

- 在 `sessionManager` 中新增邮件注册码缓存管理实例和相关方法
- 实现生成、保存、验证、删除邮件注册码的逻辑
- 新增 `/reg` 和 `/email` 接口用于用户注册和发送验证码
- 引入 `golang-lru` 依赖以支持限流缓存功能
- 调整包导入顺序，优化代码结构
```

common/utils/golang-lru-main/.github/dependabot.yml

@@ -0,0 +1,36 @@
+# Copyright (c) HashiCorp, Inc.
+# SPDX-License-Identifier: MPL-2.0
+
+version: 2
+
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "sunday"
+    commit-message:
+      prefix: "[chore] : "
+    groups:
+      actions:
+        patterns:
+          - "*"
+
+  - package-ecosystem: "gomod"
+    directories:
+      - "/"
+      - "/arc"
+    schedule:
+      interval: "weekly"
+      day: "sunday"
+    commit-message:
+      prefix: "[chore] : "
+    groups:
+      go:
+        patterns:
+          - "*"
+        applies-to: "version-updates"
+      go-security:
+        patterns:
+          - "*"
+        applies-to: "security-updates"