FWI-FE-502: Update frontend README.md with ML prediction features and real data visualization

[donkasun]

Description

Update frontend documentation to describe ML prediction features, scenario building capabilities, and result visualization. Include screenshots, user guides, and feature walkthroughs. Add troubleshooting section for common UI issues and performance optimization tips.

Dependencies

• FWI-FE-501 (Production deployment)

Acceptance Criteria

• Update documentation with ML prediction features
• Include scenario building capabilities documentation
• Add result visualization documentation
• Include screenshots and user guides
• Add feature walkthroughs
• Include troubleshooting section for UI issues
• Add performance optimization tips
• Include user interaction guides

Technical Notes

• Document ML prediction features and capabilities
• Include screenshots and user guides
• Add troubleshooting section for common UI issues
• Include performance optimization tips