fix: resolve ESLint sourceType mismatch for cypress.config.js (issue #31) (#64)

Add overrides block in .eslintrc.js to parse cypress.config.js as CommonJS
(sourceType: 'script') rather than ESM. The global sourceType: 'module' caused
ESLint to flag require() as undefined, since require is not available in ESM
scope. The project has no 'type: module' in package.json, so CommonJS is correct.

Closes #31

.eslintrc.js

@@ -19,6 +19,19 @@ module.exports = {
     'no-console': 'warn',
     'no-unused-vars': 'warn'
   },
+  overrides: [
+    {
+      // cypress.config.js uses CommonJS (require/module.exports).
+      // Override sourceType to 'script' so ESLint does not flag require as undefined.
+      files: ['cypress.config.js', 'cypress.config.cjs'],
+      parserOptions: {
+        sourceType: 'script'
+      },
+      env: {
+        node: true
+      }
+    }
+  ],
   globals: {
     cy: 'readonly',
     Cypress: 'readonly',