Fix tests to run independently without external services

Add custom favicon, fix LinkedIn URL, improve Mermaid diagrams

Update README with live demo links and tech badges

Add /history endpoint for analysis history

Configure for Hugging Face Spaces deployment

Add React frontend for Sentiment Analysis API

Add Docker Compose setup with PostgreSQL, Redis, and Nginx; implement caching and database models

Improve Mermaid diagram visibility with vibrant colors and black text

Add Mermaid architecture diagrams

Merge pull request #1 from simplyarfan/feature/add-tests

Add GitHub Actions CI/CD pipeline

Refactor README.md for improved formatting and clarity

Update README.md to enhance project description, features, and usage instructions

Add Docker containerization support

Add README with project goals

Add README with project goals

Initial project structure