Update deployment: remove Fly.io, add self-hosted Docker setup

CHANGELOG.md

@@ -8,10 +8,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 
 ### Added
-- Fly.io deployment configuration for public demo
+- Docker deployment configuration for public demo
   - Dockerfile with Python 3.11-slim and WeasyPrint dependencies
-  - fly.toml with scale-to-zero configuration (London region)
   - .dockerignore to exclude tests, docs, and development files
+  - deploy/ directory with docker-compose, nginx config, and Cloudflare Tunnel setup
 - PDF Report Generation (Sprint 18)
   - Professional PDF reports from test results with charts and styling
   - `ReportGenerator` class orchestrating data gathering, chart generation, and PDF output