feat: 邮件已读/未读状态持久化与 Web 页面增强 (0.2.8)

- 邮件列表/详情页显示已读/未读状态，支持按状态筛选
- 邮件 API GET /v1/mail/messages 支持 seen 过滤
- 数据库 ias_mail_messages 新增 seen 字段
- 新增邮件查询 YAML 工具 query_mail_messages
- 新增 /tools 和 /configs Web 页面
- 新增 ias-http shell 和 ias-service console 模块
- 补充历史版本升级日志迁移 SQL

ias-http/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ias-http"
-version = "0.1.1"
+version = "0.1.4"
 edition = "2024"
 
 [dependencies]
@@ -16,4 +16,5 @@ sqlx = { version = "0.9.0", features = [
     "chrono",
 ] }
 tokio = { version = "1.0", features = ["net", "sync"] }
+tower-http = { version = "0.6", features = ["cors"] }
 uuid = { version = "1", features = ["v4", "serde"] }