init: 本地静态页面托管服务

- 初始化

stash-core/src/lib.rs

@@ -0,0 +1,9 @@
+pub mod config;
+pub mod error;
+pub mod listing;
+pub mod server;
+
+pub use config::Config;
+pub use error::StashError;
+pub use listing::{scan_projects, AppProject};
+pub use server::{start, ServerHandle};