docs: fix filename typo and add Cloudflare Pages deploy details across docs

docs/architecture/README.md

@@ -87,12 +87,7 @@
 
 ## Companion Documentation
 
-- [API.md](../API.md) - Implemented WebSocket and REST API reference.
-- [DEPLOYMENT.md](../DEPLOYMENT.md) - Production deployment and operational runbook.
-- [MONITORING.md](../MONITORING.md) - Metrics, dashboards, and monitoring troubleshooting.
-- [SECURITY.md](../SECURITY.md) - Security model, controls, and hardening baseline.
-- [SETUP.md](../SETUP.md) - Test lab setup, local development, and CI/CD workflow.
-- [STREAMING.md](../STREAMING.md) - Streaming architecture, playout, and delivery details.
+see [Documentation README](../README.md) for an overview of all documentation, including architecture, ADRs, operational procedures, and setup guides.
 
 ## Introduction and Goals
 
@@ -727,7 +722,7 @@ These ADRs together form the canonical decision log.
 - Self-managed US-East playout (Hetzner Ashburn) with FFmpeg + MediaMTX/SRS → HLS → Cloudflare R2 + edge caching.
 - Module structure that directly reflects the arc42 building blocks and context diagram.
 - Go preferred for performance-critical services; TypeScript for frontend; Docker for all deployment.
-- Admin interfaces for video management, moderation, analytics, and system configuration using HTMX + Tailwind.
+- Admin interfaces for video management, moderation, analytics, and system configuration using HTMX + custom CSS.
 - SQLite as primary database for v1 with PostgreSQL migration path if needed.
 - Redis for rate limiting, presence, pub/sub, session storage with defined TTL policies and fallback behavior.