Document Knowledge POC

Anonymized contribution to a historical document-intelligence proof of concept with Python backend and Next.js frontend components. The POC contains document/dashboard workflows, WebSocket communication, authentication, and question-answering modules. Contribution evidence includes frontend/backend maintenance and integration-era changes. Scope: POC only; does not establish ownership of a later production knowledge platform. No retrieval-quality, production-scale, or customer-adoption claim is made.