Wrapping up for the night. Better alerts and things with the correct timezone...

src/lib/ae_events__event_device.ts

@@ -483,6 +483,8 @@ export function db_save_ae_obj_li__event_device(
                     record_status: obj.record_status,
                     record_status_msg: obj.record_status_msg,
                     record_status_on: obj.record_status_on,
+                    // These are timestamps that are in UTC but missing the 'Z' at the end
+                    heartbeat: obj.heartbeat ? obj.heartbeat+'Z' : null,
 
                     info_hostname: obj.info_hostname,
                     info_ip_list: obj.info_ip_list,

src/lib/db_events.ts

@@ -174,6 +174,7 @@ export interface Device {
     record_status?: null|string;
     record_status_msg?: null|string;
     record_status_on?: null|Date;
+    heartbeat?: null|string;
 
     info_hostname?: null|string;
     info_ip_list?: null|string; // Semi-colon separated list of IP addresses