feat(formatters): frost handoff formatter + config wiring

Adds src/helper/formatters/frostFormatter.js — structured-envelope formatter parallel to the InfluxDB one. Produces dbase messages that a CoreSync collector can forward to FROST/SensorThings without coupling producing nodes to FROST HTTP details. Registered in formatters/index.js.

Config additions in 4 node schemas (machineGroupControl, measurement, pumpingStation, rotatingMachine) expose the new dbase format option in the editor.

Part of the CoreSync FROST handoff initiative — see superproject CORESYNC_FROST_INTERVIEW_HANDOFF.md.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/configs/machineGroupControl.json

@@ -134,6 +134,7 @@
           "type": "enum",
           "values": [
             { "value": "influxdb", "description": "InfluxDB line-protocol payload (default)." },
+            { "value": "frost", "description": "FROST/SensorThings CoreSync payload." },
             { "value": "json", "description": "Raw JSON payload." },
             { "value": "csv", "description": "CSV-formatted payload." }
           ],

src/configs/measurement.json

@@ -120,6 +120,7 @@
                 "type": "enum",
                 "values": [
                     { "value": "influxdb", "description": "InfluxDB line-protocol payload (default)." },
+                    { "value": "frost", "description": "FROST/SensorThings CoreSync payload." },
                     { "value": "json", "description": "Raw JSON payload." },
                     { "value": "csv", "description": "CSV-formatted payload." }
                 ],

src/configs/pumpingStation.json

@@ -166,6 +166,10 @@
                         "value": "influxdb",
                         "description": "InfluxDB telemetry payload."
                     },
+                    {
+                        "value": "frost",
+                        "description": "FROST/SensorThings CoreSync payload."
+                    },
                     {
                         "value": "json",
                         "description": "JSON payload."

src/configs/rotatingMachine.json

@@ -134,6 +134,7 @@
           "type": "enum",
           "values": [
             { "value": "influxdb", "description": "InfluxDB line-protocol payload (default)." },
+            { "value": "frost", "description": "FROST/SensorThings CoreSync payload." },
             { "value": "json", "description": "Raw JSON payload." },
             { "value": "csv", "description": "CSV-formatted payload." }
           ],

src/helper/formatters/frostFormatter.js

@@ -0,0 +1,23 @@
+/**
+ * FROST handoff formatter
+ * -----------------------
+ * Keeps the same structured envelope as the InfluxDB formatter so a shared
+ * CoreSync collector can accept existing EVOLV dbase messages without coupling
+ * producing nodes to FROST HTTP details.
+ */
+function format(measurement, metadata) {
+  const { fields, tags, config } = metadata;
+  return {
+    measurement,
+    fields,
+    tags: tags || {},
+    timestamp: new Date().toISOString(),
+    source: {
+      nodeId: config?.general?.id,
+      softwareType: config?.functionality?.softwareType,
+      unit: config?.general?.unit || config?.asset?.unit,
+    },
+  };
+}
+
+module.exports = { format };

src/helper/formatters/index.js

@@ -14,6 +14,7 @@ const influxdbFormatter = require('./influxdbFormatter');
 const jsonFormatter = require('./jsonFormatter');
 const csvFormatter = require('./csvFormatter');
 const processFormatter = require('./processFormatter');
+const frostFormatter = require('./frostFormatter');
 
 // Built-in registry
 const registry = {
@@ -21,6 +22,7 @@ const registry = {
   json: jsonFormatter,
   csv: csvFormatter,
   process: processFormatter,
+  frost: frostFormatter,
 };
 
 /**