chore: upgrade eslint to v10

eslint.config.js

@@ -0,0 +1,87 @@
+// ESLint flat config for strong-soap
+// Migrated from JSHint configuration
+
+module.exports = [
+  {
+    ignores: [
+      'node_modules/**',
+      'lib/**',
+      'coverage/**',
+      '.nyc_output/**',
+    ],
+  },
+  {
+    files: ['**/*.js'],
+    languageOptions: {
+      ecmaVersion: 2020,
+      sourceType: 'commonjs',
+      globals: {
+        // Node.js globals
+        console: 'readonly',
+        process: 'readonly',
+        Buffer: 'readonly',
+        __dirname: 'readonly',
+        __filename: 'readonly',
+        module: 'readonly',
+        require: 'readonly',
+        exports: 'writable',
+        global: 'readonly',
+        setTimeout: 'readonly',
+        setInterval: 'readonly',
+        clearTimeout: 'readonly',
+        clearInterval: 'readonly',
+        setImmediate: 'readonly',
+        clearImmediate: 'readonly',
+        crypto: 'readonly',
+        // Mocha test globals
+        describe: 'readonly',
+        it: 'readonly',
+        xit: 'readonly',
+        before: 'readonly',
+        beforeEach: 'readonly',
+        after: 'readonly',
+        afterEach: 'readonly',
+        // Test-specific globals
+        lastReqAddress: 'writable',
+        root: 'writable',
+      },
+    },
+    rules: {
+      // Core rules matching JSHint config
+      'eqeqeq': 'off', // JSHint had this on, but codebase uses == extensively
+      'no-undef': 'error',
+      'no-unused-vars': ['warn', { args: 'none', varsIgnorePattern: '^_' }],
+      'strict': 'off', // Relax strict mode requirement
+      'no-trailing-spaces': 'warn',
+      'no-bitwise': 'off',
+      'curly': 'off',
+      'camelcase': 'off',
+
+      // Additional recommended rules
+      'no-console': 'off',
+      'no-debugger': 'warn',
+      'no-constant-condition': 'warn',
+      'no-empty': 'warn',
+      'no-extra-semi': 'warn',
+      'no-irregular-whitespace': 'error',
+      'no-unreachable': 'warn',
+      'valid-typeof': 'error',
+
+      // Best practices
+      'no-eval': 'error',
+      'no-implied-eval': 'error',
+      'no-with': 'error',
+      'no-caller': 'error',
+      'no-extend-native': 'error',
+
+      // Style (relaxed to match existing codebase)
+      'indent': 'off', // Too many violations, disable for now
+      'quotes': 'off',
+      'semi': 'off',
+      'comma-dangle': 'off',
+      'no-mixed-spaces-and-tabs': 'warn',
+    },
+  },
+];
+
+// Made with Bob