build: scaffold axum api server entry

server-rs/apps/api-server/src/main.rs

@@ -0,0 +1,20 @@
+mod app;
+mod state;
+
+use std::net::SocketAddr;
+
+use tokio::net::TcpListener;
+
+use crate::{app::build_router, state::AppState};
+
+#[tokio::main]
+async fn main() -> Result<(), std::io::Error> {
+    // 当前阶段先用固定地址启动最小骨架，后续再切到统一配置加载。
+    let bind_address = SocketAddr::from(([127, 0, 0, 1], 3000));
+    let listener = TcpListener::bind(bind_address).await?;
+
+    let state = AppState::new();
+    let router = build_router(state);
+
+    axum::serve(listener, router).await
+}