Adds webapp-nginx.conf, systemd/currencicombo-orchestrator.service, and install-prune-cron.sh — all three referenced by main's existing install.sh / deploy script / webapp.service / README but missing from the 4a1f69a commit. Byte-identical to PR #31 branch ded7d24.
Closes gap so CT 8604 can boot cleanly.
- Added quick start instructions in README.md for first-time setup, including commands for complete setup, verification, and service start.
- Revised FINAL_STATUS.md to reflect the project's infrastructure completion and readiness for execution, detailing scripts created and documentation status.
- Added multi-platform deployment architecture details (Web App, PWA, DApp) to README.md.
- Included comprehensive troubleshooting guides and fix scripts in README.md.
- Enhanced CHANGELOG.md with new features, fixes, and improvements, including TypeScript error resolutions and updated documentation structure.
- Revised development setup instructions in DEV_SETUP.md to reflect changes in script usage and environment variable setup.
