Surfaces features that landed after the last big docs pass: per-ride
history pages, Fast Lane wait times, outage shading on the today chart,
Tier-5 wait-time sampler, production-hardening pieces (rate limiter,
structured logger, env validation, graceful shutdown), and the new
rides + ride_wait_samples tables. Also corrects the weather-delay rule
to match the "open" vs "closing" gate now in rides.ts.
Add docs/ folder with architecture, operations, API reference, and
development guides covering system design, deployment, troubleshooting,
all backend endpoints, and contributor workflows.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>