Optimize: Increase timeout to 20min, larger chunks for faster processing

Add better env var validation and debugging for HF Spaces

Fix HF Spaces deployment timeout issue

🧹 Clean up: Remove unused dependencies, duplicate files, and build artifacts

docs: Add prominent live demo link to GitHub README

✨ Add CI/CD, logging, rate limiting, and Swagger API docs

Add preloaded document with Git LFS: Attention Is All You Need

Fix: Set correct app_port 7860 for HF Spaces

Fix: Handle missing HF_TOKEN environment variable

Prepare for Hugging Face Spaces deployment

🆓 Add Hugging Face Spaces support for free deployment

🚀 Add Docker & cloud deployment configuration (Railway, Render)

📝 Major documentation overhaul: Consolidated all docs into professional README.md

Reduce file size limit from 50MB to 15MB for better UX

Update dependencies and project configuration

Initial commit: PaperBOT - AI-Powered Research Paper Assistant