Backend updates

database.rules.json

@@ -1,5 +1,4 @@
 {
-  /* Visit https://firebase.google.com/docs/database/security to learn more about security rules. */
   "rules": {
     ".read": false,
     ".write": false

eslint.config.js

@@ -0,0 +1,50 @@
+import { includeIgnoreFile } from "@eslint/compat";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import vue from 'eslint-plugin-vue';
+import prettier from 'eslint-config-prettier';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const gitignorePath = path.resolve(__dirname, ".gitignore");
+
+export default [
+  includeIgnoreFile(gitignorePath),
+  ...vue.configs['flat/essential'],
+
+  {
+    files: ['**/*.{js,cjs,mjs,ts,tsx}'],
+    rules: {
+      'no-unused-vars': 'warn',
+      'no-console': 'off',
+    },
+    languageOptions: {
+      ecmaVersion: 'latest',
+    },
+  },
+
+  {
+    files: ['**/*.vue'],
+    plugins: {
+      vue,
+    },
+    rules: {
+      ...vue.configs['vue3-essential'].rules,
+      'vue/multi-word-component-names': 'off',
+    },
+    languageOptions: {
+      parserOptions: {
+        ecmaVersion: 'latest',
+      },
+    },
+  },
+
+  {
+    plugins: {
+      prettier,
+    },
+    rules: {
+      ...prettier.rules,
+    },
+  },
+];