chore: update ESLint configuration and improve TypeScript type handling

- Added additional test file patterns to ESLint configuration for better coverage.
- Introduced new rule to ignore unused TypeScript variables starting with an underscore.
- Updated `PermissionController` to set approval mode correctly.
- Refactored timeout constants in `Query` class for better maintainability.
- Enhanced E2E tests for permission control and multi-turn conversations with clearer prompts and expectations.
- Removed outdated simple query test file and added new single-turn test suite for better organization.

eslint.config.js

@@ -150,7 +150,7 @@ export default tseslint.config(
     },
   },
   {
-    files: ['packages/*/src/**/*.test.{ts,tsx}'],
+    files: ['packages/*/src/**/*.test.{ts,tsx}', 'packages/**/test/**/*.test.{ts,tsx}'],
     plugins: {
       vitest,
     },
@@ -158,6 +158,14 @@ export default tseslint.config(
       ...vitest.configs.recommended.rules,
       'vitest/expect-expect': 'off',
       'vitest/no-commented-out-tests': 'off',
+      '@typescript-eslint/no-unused-vars': [
+        'error',
+        {
+          argsIgnorePattern: '^_',
+          varsIgnorePattern: '^_',
+          caughtErrorsIgnorePattern: '^_',
+        },
+      ],
     },
   },
   // extra settings for scripts that we run directly with node