Initialize Cargo workspace with wraith-core, wraith, and wraith-napi crates

- Workspace root Cargo.toml with three crate members
- wraith-core: library with feature flags (tls, iroh, acme), core deps (russh, tokio, tracing, anyhow, thiserror, tokio-util), module skeleton (transport, client, server, auth, socks5, error)
- wraith: binary crate depending on wraith-core with clap derive
- wraith-napi: cdylib crate depending on wraith-core, napi, napi-derive
- .gitignore for target/ and node_modules/

crates/wraith-napi/Cargo.toml

@@ -0,0 +1,12 @@
+[package]
+name = "wraith-napi"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+wraith-core = { path = "../wraith-core" }
+napi = "3"
+napi-derive = "3"

crates/wraith-napi/src/lib.rs

@@ -0,0 +1,3 @@
+#[allow(unused_imports)]
+#[macro_use]
+extern crate napi_derive;