test(techdemo): add typed browser e2e

req: examples/001

req: dx/008

req: form/002

req: page_swap/002

req: push/003

examples/techdemo/src/main.rs

@@ -101,7 +101,10 @@ async fn main() {
         .route("/slhx.js", get(runtime))
         .with_state(state);
 
-    let addr = SocketAddr::from(([127, 0, 0, 1], 3002));
+    let addr = std::env::var("SLHX_TECHDEMO_ADDR")
+        .ok()
+        .and_then(|addr| addr.parse().ok())
+        .unwrap_or_else(|| SocketAddr::from(([127, 0, 0, 1], 3002)));
     let listener = tokio::net::TcpListener::bind(addr).await.unwrap();
     println!("slhx techdemo: http://{addr}");
     axum::serve(listener, app).await.unwrap();