Fix ESLint configuration and parsing errors

- Fix .eslintrc.json format (remove comments and invalid JSON syntax)
- Simplify environment.jsx to fix parsing error
- Add proper ESLint rules for React project
- Enable react-hooks plugin and configure settings

src/environment.jsx

@@ -1,6 +1,5 @@
 // For development environment
-const publicUrl = process.env.PUBLIC_URL || "/";
-export const base_path = publicUrl.endsWith('/') ? publicUrl : publicUrl + '/';
+export const base_path = process.env.PUBLIC_URL || "/";
 
 // For production with a subdirectory (uncomment and modify as needed)
 // export const base_path = "/react/";