heavily simplify server and app content. unify styling

server/plugins/db.init.js

@@ -1,9 +1,5 @@
 import { getDb, closeDb } from '../utils/db.js'
 
-/**
- * Initialize DB at server startup.
- * Close DB on server shutdown to avoid native sqlite3 crashes in worker teardown.
- */
 export default defineNitroPlugin((nitroApp) => {
   void getDb()
   nitroApp.hooks.hook('close', () => {