feat: finalize shadcn integration with portal-based context menu and clean build

backend/src/main.rs

@@ -346,10 +346,7 @@ async fn main() {
 
                     match diff::diff_torrents(&previous_torrents, &new_torrents) {
                         diff::DiffResult::FullUpdate => {
-                            let _ = event_bus_tx.send(AppEvent::FullList {
-                                torrents: new_torrents.clone(),
-                                timestamp: now,
-                            });
+                            let _ = event_bus_tx.send(AppEvent::FullList(new_torrents.clone(), now));
                         }
                         diff::DiffResult::Partial(updates) => {
                             for update in updates {

backend/src/sse.rs

@@ -210,10 +210,7 @@ pub async fn sse_handler(
             .unwrap()
             .as_secs();
 
-        let event_data = AppEvent::FullList {
-            torrents: initial_torrents,
-            timestamp,
-        };
+        let event_data = AppEvent::FullList(initial_torrents, timestamp);
 
         match rmp_serde::to_vec(&event_data) {
             Ok(bytes) => Event::default().data(BASE64.encode(bytes)),
@@ -250,7 +247,7 @@ pub async fn sse_handler(
         .keep_alive(axum::response::sse::KeepAlive::default());
 
     (
-        [("content-type", "application/x-msgpack")],
+        [("content-type", "text/event-stream")],
         sse
     )
 }