track when neighbours were last updated

prisma/migrations/20240323103128_add_neighbours_updated_at_column_to_nodes_table/migration.sql

@@ -0,0 +1,2 @@
+-- AlterTable
+ALTER TABLE `nodes` ADD COLUMN `neighbours_updated_at` DATETIME(3) NULL;

prisma/schema.prisma

@@ -33,6 +33,7 @@ model Node {
 
   neighbour_broadcast_interval_secs Int?
   neighbours                        Json?
+  neighbours_updated_at             DateTime?
 
   created_at DateTime @default(now())
   updated_at DateTime @default(now()) @updatedAt

src/mqtt.js

@@ -298,6 +298,7 @@ client.on("message", async (topic, message) => {
                         node_id: envelope.packet.from,
                     },
                     data: {
+                        neighbours_updated_at: new Date(),
                         neighbour_broadcast_interval_secs: neighbourInfo.nodeBroadcastIntervalSecs,
                         neighbours: neighbourInfo.neighbors.map((neighbour) => {
                             return {