refactor: update ESLint configuration to use Linter.FlatConfig and enhance max-len rule settings

Author: tomast1337

eslint.config.ts

@@ -1,12 +1,12 @@
 import js from '@eslint/js';
-import type { ESLint } from 'eslint';
+import type { Linter } from 'eslint';
 import tseslint from '@typescript-eslint/eslint-plugin';
 import tsparser from '@typescript-eslint/parser';
 import prettierConfig from 'eslint-config-prettier';
 import prettierPlugin from 'eslint-plugin-prettier';
 import globals from 'globals';
 
-const config: ESLint.ConfigData = [
+const config: Linter.FlatConfig[] = [
   // Base JavaScript configuration
   js.configs.recommended,
 
@@ -56,7 +56,7 @@ const config: ESLint.ConfigData = [
       },
     },
     plugins: {
-      '@typescript-eslint': tseslint,
+      '@typescript-eslint': tseslint as any,
       prettier: prettierPlugin,
     },
     rules: {
@@ -99,6 +99,20 @@ const config: ESLint.ConfigData = [
       'prefer-const': 'warn',
       'no-constant-condition': 'warn',
       'no-constant-binary-expression': 'warn',
+
+      // Line length limit
+      'max-len': [
+        'warn',
+        {
+          code: 512,
+          tabWidth: 2,
+          ignoreUrls: true,
+          ignoreStrings: true,
+          ignoreTemplateLiterals: true,
+          ignoreRegExpLiterals: true,
+          ignoreComments: false,
+        },
+      ],
     },
     settings: {
       react: {