Bug #1 — quick-start wizard let users skip the LLM provider/API key yet
reported "Mosaic is ready". provider-setup now requires an interactive
provider select + a validated key; quick-start guards the headless path;
finalize won't print "Mosaic is ready" without a configured provider;
removed references to the non-existent `mosaic configure` command.
Bug #2 — the "local" storage tier still opened ioredis/BullMQ
connections at bootstrap (ECONNREFUSED, gateway never healthy). Every
Redis consumer (queue.service, gc.module, session-gc.service,
commands.module, command-executor.service, system-override.service,
cron.service, admin-health.controller) is now tier-aware and degrades
gracefully on local tier. Standalone/Federated unaffected. Also fixed a
pre-existing SystemOverrideService ioredis handle leak (added shutdown hook).
Refs #675
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RMoEx7hfdFGjUiCHuN1RRi
