Foreground Connection Delay Adjustment

Nucleic-Session: CB658C4F-A19F-447C-B313-7CB21783BD94
Co-authored-by: Nucleic <[email protected]>

NucleicRemote/NucleicRemote/Models/RemoteStore.swift

@@ -924,18 +924,35 @@ final class RemoteStore: ObservableObject {
             ?? WireCapabilities(canModifyToolInput: false, allowAlwaysScopes: []))
         setIfChanged(\.modelCatalog, ctx?.modelCatalog ?? .empty)
 
+        var targetConnectivity: Connectivity
+        var targetScope: DeviceScope
         if let id = openSessionHostID, let conn = connections[id] {
             // While a transcript is open, the composer/controls act on *that* Mac — its connectivity
             // gates send and its scope drives the control affordances.
-            setIfChanged(\.connectivity, conn.connectivity)
-            setIfChanged(\.grantedScope, conn.grantedScope)
+            targetConnectivity = conn.connectivity
+            targetScope = conn.grantedScope
         } else {
-            setIfChanged(\.connectivity, aggregateConnectivity())
+            targetConnectivity = aggregateConnectivity()
             // Optimistic new-chat gating: enabled if *any* Mac grants control (the owning Mac still
             // enforces scope when the intent lands there).
-            setIfChanged(\.grantedScope, connections.values
-                .filter { $0.connectivity.isLive }.map(\.grantedScope).max() ?? .approve)
+            targetScope = connections.values
+                .filter { $0.connectivity.isLive }.map(\.grantedScope).max() ?? .approve
         }
+        if targetConnectivity.isLive {
+            // Truly live — remember this projection so the optimistic overlay can present it across
+            // the next foreground/relaunch.
+            captureLastLive(transport: targetConnectivity.transport ?? .lan, scope: targetScope)
+        } else if isOptimisticActive, let last = lastLive {
+            // Right after launch/foreground the link is re-handshaking (or a suspended socket woke up
+            // looking dead). Rather than flash "Disconnected" for the beat it takes to reconnect, keep
+            // presenting the last known-good live state — the app assumes it's connected. Actions
+            // taken now are queued in `send` and replayed once a link is up (or discarded when the
+            // window lapses without one).
+            targetConnectivity = .connected(last.transport)
+            targetScope = last.grantedScope
+        }
+        setIfChanged(\.connectivity, targetConnectivity)
+        setIfChanged(\.grantedScope, targetScope)
     }
 
     /// Assign a `@Published` property only when the value actually differs, so a no-op rebuild