feat(ws): consume gateway change events (issue #784) (#837)

* feat(ws): consume gateway change events (cron/sessions/platforms/pairing) for targeted refresh (issue #784)

* test(chat): complete catch-all request stub — kill frozen-collector capture race (slash-focus flake, 4645a2b CI)

---------

Co-authored-by: M57 <hy4ri@users.noreply.github.com>

app/src/main/java/com/m57/hermescontrol/ui/cron/CronJobsViewModel.kt

@@ -11,8 +11,10 @@ import com.m57.hermescontrol.data.model.UpdateCronJobRequest
 import com.m57.hermescontrol.data.remote.ApiClient
 import com.m57.hermescontrol.data.remote.NetworkResult
 import com.m57.hermescontrol.data.remote.safeApiCall
+import com.m57.hermescontrol.data.ws.ChangeEvents
 import com.m57.hermescontrol.data.ws.toJsonElement
 import com.m57.hermescontrol.ui.common.ToastHost
+import com.m57.hermescontrol.ui.common.refreshOnChange
 import com.m57.hermescontrol.ui.common.safeLaunchLoad
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
@@ -83,6 +85,16 @@ class CronJobsViewModel :
 
     private var loadJob: Job? = null
 
+    init {
+        // Issue #784: gateway broadcasts cron.changed — refresh the list
+        // silently on change instead of waiting for a manual pull.
+        refreshOnChange(
+            eventType = ChangeEvents.CRON,
+            apiCall = { safeApiCall { ApiClient.hermesApi.getCronJobs() } },
+            onSuccess = { data -> _uiState.update { it.copy(jobs = data.orEmpty()) } },
+        )
+    }
+
     fun loadCronJobs() {
         loadJob =
             safeLaunchLoad(