- auth: do not abort the server when authentication is disabled. auth.Init
is now always called; with disable-authentication it sets up an ephemeral
session store (SESSION_KEY not required) and registers no authenticators,
so the unconditional auth.GetAuthInstance() callers (server init,
api.New()) always get a valid instance.
- main: run the graceful-shutdown sequence on the startup-error path. runServer
derives a cancelable context and, on a server-start failure, cancels it and
waits so the metricstore final checkpoint / WAL rotation, archiver flush and
taskmanager shutdown actually run before exit.
- server: log the :80 HTTP->HTTPS redirect listener error instead of dropping it.
- archiver: guard Shutdown against being called when Start never ran
(avoids close(nil) panic / blocking on a nil workerDone).
- nats API: stop worker goroutines on shutdown via a stop channel + idempotent
Shutdown(); workers and subscription callbacks select on stop and the
channels are never closed, so no send-on-closed-channel can occur. Wired
into Server.Shutdown after the NATS client is closed.
- metricstore: make Shutdown idempotent (nil shutdownFunc, early return) and
release shutdownFuncMu before the checkpoint write.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Entire-Checkpoint: 3c179f9caa8f
