chore(frontend): Update icons and migrate ESLint config

.husky/pre-commit

@@ -1,10 +1,27 @@
 #!/bin/sh
 
+# Exit if any command fails
+set -e
+
 # Navigate to the root directory of the repository
 cd "$(git rev-parse --show-toplevel)"
 
-# Navigate to frontend directory and run linting
-(cd frontend && npm run lint:fix)
+# Ensure node modules are installed before running linting
+if [ ! -d "frontend/node_modules" ]; then
+  echo "Node modules not found in frontend. Installing..."
+  cd frontend && npm install
+fi
+
+# Navigate to frontend directory and run linting with explicit paths
+(cd frontend && ./node_modules/.bin/eslint --fix 'src/**/*.{js,jsx}' && ./node_modules/.bin/prettier --write 'src/**/*.{js,jsx}')
+
+# Ensure node modules are installed in backend if necessary
+if [ -d "backend" ] && [ ! -d "backend/node_modules" ]; then
+  echo "Node modules not found in backend. Installing..."
+  cd backend && npm install
+fi
 
-# Navigate to backend directory and run linting
-(cd backend && npm run lint:fix)
+# Navigate to backend directory and run linting (if it exists)
+if [ -d "backend" ]; then
+  (cd backend && ./node_modules/.bin/eslint --fix 'src/**/*.{js,jsx}')
+fi

backend/eslint.config.mjs

@@ -0,0 +1,38 @@
+import globals from "globals";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import js from "@eslint/js";
+import { FlatCompat } from "@eslint/eslintrc";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const compat = new FlatCompat({
+    baseDirectory: __dirname,
+    recommendedConfig: js.configs.recommended,
+    allConfig: js.configs.all
+});
+
+export default [...compat.extends("eslint:recommended"), {
+    languageOptions: {
+        globals: {
+            ...globals.node,
+            ...globals.jest,
+        },
+
+        ecmaVersion: "latest",
+        sourceType: "module",
+    },
+
+    rules: {},
+}, {
+    files: ["**/.eslintrc.{js,cjs}"],
+
+    languageOptions: {
+        globals: {
+            ...globals.node,
+        },
+
+        ecmaVersion: 5,
+        sourceType: "commonjs",
+    },
+}];

backend/package.json

@@ -25,8 +25,11 @@
     "mongoose": "^8.1.1"
   },
   "devDependencies": {
+    "@eslint/eslintrc": "^3.1.0",
+    "@eslint/js": "^9.14.0",
     "eslint": "^8.57.0",
     "eslint-plugin-react": "^7.34.0",
+    "globals": "^15.12.0",
     "jest": "^29.7.0",
     "nodemon": "^3.1.0",
     "prettier": "^3.2.5",