fix: Restore exact working structure from commit c72a240

fix: Add app.py wrapper for Hugging Face Spaces compatibility

fix: Update app_file to point to demo_app.py

fix: Add Hugging Face YAML metadata to README.md

feat: Major system enhancements - GPT-5 support, monitoring, translation, and optimizations

docs: rewrite README for internal use - focus on technical architecture and optimizations

docs: update README with simplified deployment info

docs: update README with PDF integration features

feat: consolidate documentation and improve code organization

Add working grant analyst demo setup

feat: scaffold repo, venv, deps, folders