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

Fix false session-expired errors on admin books load.

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

fix: Audit pass — critical bug fix + lazy import cleanup (qa/books/schemas_router)

Add: SuperAdmin create author endpoint (POST /api/super/authors) with optional plan + fix register ValueError 500

Production hardening: JWT blacklist, TOTP, Pydantic schemas, Prometheus, SSRF fix, CSP, Redis auth, Celery backup — 35 items across P0-P5

Fix logout on page refresh by restoring sessions via refresh token and cookies.

Fix auth session expiry with shared auto-refresh client for admin panels.

Restructure project for HF Spaces deployment