fix(review): resolve deferred code-review findings; S7.Cli verdict, browser CP release, MemberLeft/Exited/Downed, Sql Detach hoist (#625)

Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe

code-reviews/Cluster/findings.md

@@ -60,7 +60,7 @@ Cross-cluster regression coverage lives in `Host.IntegrationTests`.
 | Severity | Low |
 | Category | Correctness & logic bugs |
 | Location | `src/Core/ZB.MOM.WW.OtOpcUa.Cluster/ClusterRoleInfo.cs:110-133` |
-| Status | Deferred |
+| Status | Resolved |
 
 **Description:** `HandleMemberEvent` only adds members on `MemberUp` and removes on
 `MemberRemoved`. `MemberLeft`, `MemberExited`, `MemberWeaklyUp`, and `MemberDowned` (all
@@ -73,8 +73,7 @@ data.
 **Recommendation:** Add cases for `MemberLeft`, `MemberExited`, and `MemberDowned` that remove the
 member from `_membersByRole` immediately.
 
-**Resolution:** Deferred — `MembersWithRole` has no production callers today; stale window is
-bounded and self-corrects on `MemberRemoved`. Revisit when a caller is added.
+**Resolution:** Resolved 2026-10-08 (#625). `MembersWithRole` gained a production caller (the historization scope-peer check in `Runtime/ServiceCollectionExtensions.cs`), so the stale window mattered. `HandleMemberEvent` now removes a member on `MemberLeft`, `MemberExited` and `MemberDowned` as well as `MemberRemoved` (shared `RemoveMember`). Pinned by `ClusterRoleInfoMemberEventTests` (Up add is the positive control; each departing transition empties the role).
 
 ---