fix: use websocket from createBunWebSocket instead of injectWebSocket

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

apps/server/src/index.ts

@@ -2,7 +2,7 @@ import { env } from "@haushaltsApp/env/server";
 import { Hono } from "hono";
 import { cors } from "hono/cors";
 import { logger } from "hono/logger";
-import { injectWebSocket } from "./ws/bun-ws";
+import { websocket } from "./ws/bun-ws";
 import { registerRoutes } from "./routes";
 
 const app = new Hono();
@@ -21,12 +21,12 @@ app.use(
 registerRoutes(app);
 
 if (typeof Bun !== "undefined" && !process.env.BUN_TEST) {
-  const server = Bun.serve({
+  Bun.serve({
     port: Number(process.env.PORT ?? 3000),
     hostname: "0.0.0.0",
     fetch: app.fetch,
+    websocket,
   });
-  injectWebSocket(server);
 }
 
 export default app;

apps/server/src/ws/bun-ws.ts

@@ -1,3 +1,3 @@
 import { createBunWebSocket } from "hono/bun";
 
-export const { upgradeWebSocket, injectWebSocket } = createBunWebSocket();
+export const { upgradeWebSocket, websocket } = createBunWebSocket();