refactor: restructure and improve quality

server/api/index.ts

@@ -1,21 +1,10 @@
 import { resolve } from "path";
 
 export default defineEventHandler(async (event) => {
-  const query = getQuery(event);
-
-  const parsed = settingsSchema.safeParse(query);
-  if (!parsed.success) {
-    return createError({
-      status: 400,
-      data: {
-        errors: Object.fromEntries(
-          parsed.error.issues.map((x) => [x.path.join("."), x.message]),
-        ),
-      },
-    });
-  }
-
-  const { format, logo, content } = parsed.data;
+  const { format, logo, content } = await getValidatedQuery(
+    event,
+    settingsSchema.parse,
+  );
 
   const logoUrl = logo ? resolve("public", `logos/${logo}.png`) : undefined;
   const canvas = await renderQRCodeToCanvas(content, logoUrl);