CodeChronicle is an advanced data visualization platform designed to analyze and bring to life the entire history of a large open-source GitHub repository. Instead of a static view of code, users can explore the dynamic, evolving story of its creation, collaboration, and architecture.

This project is a "Cathedral-Class" portfolio piece designed to showcase elite skills in data-intensive backend processing and high-end frontend data visualization with D3.js.

• Data Ingestion & Processing Pipeline: A powerful Node.js backend service that uses the GitHub API to fetch the entire commit and pull request history of a target repository, processing and storing the massive dataset in a highly optimized PostgreSQL database.
• Interactive Commit History Graph: The visual centerpiece. A stunning, interactive force-directed graph of the repository's commit tree, built with D3.js, allowing users to pan, zoom, and explore the branching history.
• Contributor & Code Heatmaps: Visual dashboards showing which contributors have had the most impact on which files and how collaboration patterns have evolved.
• Architectural Time-Lapse: A feature that visualizes the growth and changes in the repository's file structure over time.

• Frontend: React, TypeScript, D3.js, Tailwind CSS
• Backend: Node.js, Express, TypeScript, PostgreSQL, GitHub API
• Deployment: Docker, Vercel/Render