feat: 目录结构迁移优化

- 将 MirrorRegistry MirrorTarget 迁移到 model.rs
- TargetConfig 独立实现 FromLua，解耦反序列化与业务校验
- mirror—shim 新增 command.rs 并将 to_command 移动到 command.rs
- 其他优化

mirror-cli/Cargo.toml

@@ -11,6 +11,8 @@ path = "src/main.rs"
 [dependencies]
 mirror-core = { path = "../mirror-core" }
 clap = { version = "4.6.6", features = ["cargo", "color", "derive","string"] }
+inquire="0.9.4"
+tempfile="3.27.0"# 用于安全原子写入
 mlua = { workspace = true }
 anyhow = { workspace = true }
 tracing = { workspace = true }