Ship chatbot intelligence upgrades and author-friendly Readers tab

Deliver enterprise features with JWT blacklist, SuperAdmin TOTP, and CI hardening.

Make Stripe optional at import and add billing test deps.

Implement Enterprise Worth Roadmap (R-139–R-173).

feat: Phases 1-5 production improvements + 8 bug fixes

Fix: add python-multipart for FastAPI file upload

Fix: add email-validator, remove gradio from requirements

Restructure project for HF Spaces deployment