Sessions Integration Feature

Nucleic-Session: FC94353F-9F0D-4BCC-AD7C-0FB14E38C2E5
Co-authored-by: Nucleic <[email protected]>

NucleicRemote/NucleicRemote/Models/RemoteStore.swift

@@ -787,16 +787,25 @@ final class RemoteStore: ObservableObject {
         send(.unsubscribe(target))
         markOpened(target)  // everything up to now has been seen
         guard openSessionID == target else { return }
-        activeConnection?.openSessionID = nil
+        connection(owningSession: target)?.openSessionID = nil
         openSessionID = nil
+        openSessionHostID = nil
         openEvents = []
         openApprovals = []
         openDiff = nil
         diffLoading = false
+        // Context reverts to the aggregate now that no transcript is open.
+        if !demoMode { rebuildAggregate() }
     }
 
     func respond(_ approval: ApprovalRequest, _ decision: Decision) {
-        send(.approvalRespond(approval.id, decision))
+        // Route to the Mac that owns the approval's session (the approval message carries no
+        // sessionID of its own). Demo resolves locally.
+        if demoMode {
+            demoHandle(.approvalRespond(approval.id, decision))
+        } else {
+            connection(owningSession: approval.sessionID)?.send(.approvalRespond(approval.id, decision))
+        }
         openApprovals.removeAll { $0.id == approval.id }  // optimistic dismiss; host confirms
     }