add eslint configuration for cypress code

cypress/eslint.config.mjs

@@ -0,0 +1,95 @@
+import js from '@eslint/js'
+import tseslint from 'typescript-eslint'
+import pluginCypress from 'eslint-plugin-cypress'
+
+export default tseslint.config(
+  js.configs.recommended,
+  ...tseslint.configs.recommended,
+  {
+    files: ['**/*.cy.{js,jsx,ts,tsx}', 'cypress/**/*.{js,jsx,ts,tsx}'],
+    plugins: {
+      cypress: pluginCypress,
+    },
+    languageOptions: {
+      globals: {
+        cy: 'readonly',
+        Cypress: 'readonly',
+        expect: 'readonly',
+        assert: 'readonly',
+        chai: 'readonly',
+        describe: 'readonly',
+        it: 'readonly',
+        beforeEach: 'readonly',
+        afterEach: 'readonly',
+        before: 'readonly',
+        after: 'readonly',
+      },
+    },
+    rules: {
+      'cypress/no-assigning-return-values': 'error',
+      'cypress/no-unnecessary-waiting': 'error',
+      'cypress/no-async-tests': 'error',
+      'cypress/unsafe-to-chain-command': 'error',
+
+      '@typescript-eslint/no-unused-vars': ['error', {
+        'argsIgnorePattern': '^_',
+        'varsIgnorePattern': '^_'
+      }],
+      '@typescript-eslint/no-explicit-any': 'warn',
+
+      'no-console': 'warn',
+      'no-debugger': 'error',
+      'no-unused-vars': 'warn',
+      'prefer-const': 'error',
+      'no-var': 'error',
+      'eqeqeq': ['error', 'always'],
+      'curly': ['error', 'all'],
+
+      'indent': ['error', 2],
+      'quotes': ['error', 'single', { 'avoidEscape': true }],
+      'semi': ['error', 'never'],
+      'comma-dangle': ['error', 'never'],
+      'object-curly-spacing': ['error', 'always'],
+      'array-bracket-spacing': ['error', 'never'],
+      'space-before-function-paren': ['error', 'never'],
+      'keyword-spacing': ['error', { 'before': true, 'after': true }],
+      'space-infix-ops': 'error',
+      'eol-last': ['error', 'always'],
+      'no-trailing-spaces': 'error',
+      'max-len': ['warn', { 
+        'code': 100, 
+        'ignoreUrls': true, 
+        'ignoreStrings': true,
+        'ignoreTemplateLiterals': true 
+      }]
+    }
+  },
+
+  {
+    files: ['cypress/support/**/*.{js,ts}'],
+    rules: {
+      // Allow console in support files for debugging
+      'no-console': 'off'
+    }
+  },
+
+  {
+    files: ['cypress.config.{js,ts}', 'eslint.config.js'],
+    rules: {
+      'no-console': 'off',
+      '@typescript-eslint/no-require-imports': 'off'
+    }
+  },
+
+  {
+    ignores: [
+      'node_modules/**',
+      'cypress/downloads/**',
+      'cypress/screenshots/**',
+      'cypress/videos/**',
+      'dist/**',
+      'build/**',
+      '*.min.js'
+    ]
+  }
+)