feat(node-red): surface energy tariff (TOU) read in Energy Command node (#58)

Author: Bre77

.changeset/nodered-tariff-read.md

@@ -0,0 +1,5 @@
+---
+"@teslemetry/node-red-contrib-teslemetry": minor
+---
+
+Add a "Get Tariff (TOU rates)" command to the Energy Command node, surfacing the SDK's `getTariff()` read (time-of-use rate schedule) in flows.

packages/node-red-contrib-teslemetry/src/nodes/teslemetry-energy-command.html

@@ -97,6 +97,7 @@
         <select id="node-input-command">
             <option value="getLiveStatus">Get Live Status</option>
             <option value="getSiteInfo">Get Site Info</option>
+            <option value="getTariff">Get Tariff (TOU rates)</option>
             <option value="setOperationModeSelfConsumption">
                 Mode: Self Consumption
             </option>

packages/node-red-contrib-teslemetry/src/nodes/teslemetry-energy-command.ts

@@ -57,6 +57,9 @@ export default function (RED: NodeAPI) {
           case "getSiteInfo":
             result = await site.getSiteInfo();
             break;
+          case "getTariff":
+            result = { response: await site.getTariff() };
+            break;
           case "setBackupReserve":
             validateParameters(msg, {
               percentage: {