refactor: migrate authentication system and update Drizzle schema.

eslint.config.js

@@ -1,17 +1,13 @@
-import { FlatCompat } from "@eslint/eslintrc";
+import nextCoreWebVitals from "eslint-config-next/core-web-vitals";
 import tseslint from "typescript-eslint";
 // @ts-ignore -- no types for this plugin
 import drizzle from "eslint-plugin-drizzle";
 
-const compat = new FlatCompat({
-  baseDirectory: import.meta.dirname,
-});
-
 export default tseslint.config(
   {
     ignores: [".next"],
   },
-  ...compat.extends("next/core-web-vitals"),
+  ...nextCoreWebVitals,
   {
     files: ["**/*.ts", "**/*.tsx"],
     plugins: {