fix: Add missing closing brace and fix indentation in server.ts

src/server.ts

@@ -71,12 +71,13 @@ export class WebhookServer {
   }
 
   static start() {
-  if (process.env.NODE_ENV !== 'test') {
-    const server = Bun.serve({
-      port: PORT,
-      fetch: WebhookServer.handleRequest,
-    });
-    console.log(`Server running on port ${PORT}`);
-    return server;
+    if (process.env.NODE_ENV !== 'test') {
+      const server = Bun.serve({
+        port: PORT,
+        fetch: WebhookServer.handleRequest,
+      });
+      console.log(`Server running on port ${PORT}`);
+      return server;
+    }
   }
-}
+} // <-- This closing brace was missing