chore: prepare for web target

crates/coop_web/src/lib.rs

@@ -0,0 +1,26 @@
+use gpui::*;
+use wasm_bindgen::prelude::*;
+
+#[wasm_bindgen]
+pub fn run() -> Result<(), JsValue> {
+    console_error_panic_hook::set_once();
+
+    // Initialize logging to browser console
+    console_log::init_with_level(log::Level::Info).expect("Failed to initialize logger");
+
+    // Also initialize tracing for WASM
+    tracing_wasm::set_as_global_default();
+
+    #[cfg(target_family = "wasm")]
+    gpui_platform::web_init();
+
+    #[cfg(not(target_family = "wasm"))]
+    let app = gpui_platform::application();
+
+    #[cfg(target_family = "wasm")]
+    let app = gpui_platform::single_threaded_web();
+
+    app.run(|_cx| {});
+
+    Ok(())
+}