fix(canvas): port remaining iOS branch stability fixes (#18228)

* fix(canvas): prevent snapshot disconnects on proxied gateways

(cherry picked from commit 2a3c9f746a65f3301c0cfe58ebe6596fed06230f)

* fix(canvas): accept url alias for present and navigate

(cherry picked from commit 674ee86a0b776cbb738add1920a4031246125312)

---------

Co-authored-by: Nimrod Gutman <nimrod.g@singular.net>

apps/shared/OpenClawKit/Sources/OpenClawKit/GatewayNodeSession.swift

@@ -85,7 +85,13 @@ public actor GatewayNodeSession {
                 latch.resume(result)
             }
             timeoutTask = Task.detached {
-                try? await Task.sleep(nanoseconds: UInt64(timeout) * 1_000_000)
+                do {
+                    try await Task.sleep(nanoseconds: UInt64(timeout) * 1_000_000)
+                } catch {
+                    // Expected when invoke finishes first and cancels the timeout task.
+                    return
+                }
+                guard !Task.isCancelled else { return }
                 timeoutLogger.info("node invoke timeout fired id=\(request.id, privacy: .public)")
                 latch.resume(BridgeInvokeResponse(
                     id: request.id,