fix(server): füge statische Datei-Serving für Production-Build hinzu

src/server/index.ts

@@ -1,5 +1,6 @@
 import { Hono } from "hono";
 import { serve } from '@hono/node-server';
+import { serveStatic } from '@hono/node-server/serve-static';
 
 import { rpcApp } from "./routes/rpc.js";
 import { clientEntry } from "./routes/client-entry.js";
@@ -54,6 +55,11 @@ Canonical: https://${process.env.DOMAIN || 'localhost:5173'}/.well-known/securit
   });
 });
 
+// Serve static files
+app.use('/static/*', serveStatic({ root: './dist' }));
+app.use('/assets/*', serveStatic({ root: './dist' }));
+app.use('/favicon.png', serveStatic({ path: './public/favicon.png' }));
+
 app.route("/rpc", rpcApp);
 app.get("/*", clientEntry);