multi-process concurrent cobalt instances

[dumbmoron]

• adds support for storing cache data in redis, configurable with API_REDIS_URL env (redis://localhost:6379)
• adds ability to spawn multiple cross-communicating cobalt processes using node:cluster, configured with API_INSTANCE_COUNT env
  • requires API_REDIS_URL to be configured
  • ratelimit and stream cache exclusively stored in redis
  • istream cache stored locally on each instance, istreams are bound to specific instance that is serving the stream
  • main instance fetches cookies/api keys, distributes them amongst newly spawned processes
  • works on linux, node >= 23.1.0

[wukko]

bub fix -1 +69,420

(i’ll review this banger tomorrow)

[wukko]

lgtm but i think github action workers died

[wukko]

lgtm 2

[wukko]

/fast-forward