Move growth features to SuperAdmin; rename /admin to /author.

Add enterprise growth APIs, billing, admin UI, and test suite.

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

Fix 429 rate limits and show friendly errors in widget.

Refactor: complete 10/10 modularity — superadmin/routers/, core/startup/, pipeline/generation.py, slim main.py

Fix: JSONResponse args reversed causing all exception handlers to crash with TypeError

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

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

Major hardening: bulletproof superadmin router with try/except on every endpoint, fix exception handler names, validate tokens before dashboard, add QoL info tooltips to all admin pages

Phase 1.2+5.1+6.2+6.5: Book cover upload with resizing, conversion funnel analytics, intent distribution, backup system, CI/CD pipeline

Phase 4+5: Fix rate limiter paths (/api/v1 -> /api/chat|auth|admin), add SecurityHeadersMiddleware (HSTS, XSS, CSRF, CSP), fix QA export auth, fix route ordering

Phase 1: Add Conversations Viewer, Custom Q&A Manager, Export Center — 15 new API endpoints, 3 new admin pages, CustomQA model, message annotations, flagging, search, CSV import/export

Deep audit fix: add missing model columns (blocked, rating, tokens_used, out_of_scope_message, buy_url, preview_url), fix .get() calls, fix ingest doc creation, add track-click endpoint, add column migrations, fix email crash, fix audit log field names, enrich superadmin author list

Feat: auto-seed superadmin from SUPER_ADMIN_USER/SUPER_ADMIN_PASS env vars on startup

Restructure project for HF Spaces deployment