v0.13.1

src/engine/polling.rs

@@ -1,3 +1,15 @@
+fn device_runtime_change_affects_control_plan(before: &Device, after: &Device) -> bool {
+    // build_control_plan() consumes only these runtime device fields. Poll heartbeat data such
+    // as last_seen/response_time_ms remains available through device.updated but no longer
+    // forces an expensive control-plan rebuild.
+    before.name != after.name
+        || before.power != after.power
+        || before.mode != after.mode
+        || before.target_temperature != after.target_temperature
+        || before.online != after.online
+        || before.communication_failures != after.communication_failures
+}
+
 async fn lock_poll_zone_operations(state: &AppState, device_id: &str) -> Result<Vec<tokio::sync::OwnedMutexGuard<()>>, AppError> {
     let mut zone_ids: Vec<String> = state.db.list_zones()?.into_iter()
         .filter(|zone| zone.device_id == device_id)
@@ -35,7 +47,11 @@ async fn poll_one_locked(state: &AppState, device_id: &str) -> Result<Device, Ap
     }
     state.db.save_device(&device)?;
     record_reading(state, &device)?;
-    state.broadcast("device.updated", serde_json::to_value(&device).unwrap_or_default());
+    state.broadcast_with_control_plan_invalidation(
+        "device.updated",
+        serde_json::to_value(&device).unwrap_or_default(),
+        device_runtime_change_affects_control_plan(&before, &device),
+    );
     Ok(device)
 }
 
@@ -182,6 +198,9 @@ fn record_poll_failure(device: &mut Device, error: &str) {
 fn register_device_failure(state: &AppState, device: &mut Device, error: &str) -> Result<(), AppError> {
     record_poll_failure(device, error);
     state.db.save_device(device)?;
+    // Command failures can change online/communication health without a device.updated frame.
+    // Keep the materialized plan current explicitly instead of relying on log-event prefixes.
+    state.invalidate_control_plan();
     state.log("warn", "device.communication_error", &format!("{}: {error}", device.name), json!({
         "device_id": device.id,
         "consecutive_failures": device.communication_failures,