Add missing <returns>/<param>/<summary>/<typeparam> tags and clean up
misused inheritdoc across 481 files so the documented API surface is
complete. Documentation-only (zero code lines changed). The 131 remaining
findings are inheritdoc-style warnings deliberately left to preserve
hand-written implementation rationale (plan-decision notes, race-condition
explanations).
Adds <summary>, <param>, <typeparam>, and <inheritdoc/> tags to public
members surfaced by commentchecker — resolves 5,847 of 5,869 issues
(99.6%) across three /fixdocs passes.
DeployHappyPathTests exercises the full deploy pipeline on the 2-node harness:
AdminOperationsActor → ConfigPublishCoordinator → DistributedPubSub →
DriverHostActor on both nodes → ApplyAck → coordinator seals. Verifies both
NodeDeploymentState rows reach Applied and Deployment.Status reaches Sealed.
Exposed + fixed two production bugs along the way:
1. Coordinator was publishing DispatchDeployment on the "deployments" topic but
never subscribed to anything — DriverHostActor ACKs published on the same
topic could not reach it. Added dedicated "deployment-acks" topic with
coordinator subscription in PreStart, and DriverHostActor publishes ACKs
there.
2. NodeId derivation used member.Address.Host only — two cluster members on a
shared loopback host (test harness, dev VMs) collided to one identity. The
coordinator's expected-ack set became {1} and the system sealed after only
half the nodes acked. Switched to host:port everywhere (ClusterRoleInfo +
coordinator) so loopback nodes stay distinct and production identities are
harmlessly more specific.
Tests: 95 v2 tests pass (was 93 + 2 deploy tests), 0 skipped.
Failover scenarios (design §8 cases 3-7: node-kill-mid-apply, split-brain,
restart-during-deploy) deferred — they need controlled node-down primitives
on the harness. Tracked as F22 (failover scenario test cases).