Fix ESLint errors and bugs

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/nodeClass.js

@@ -203,12 +203,13 @@ class nodeClass {
           this.source.handleInput(msg);
           break;
           */
-        case 'registerChild':
+        case 'registerChild': {
           // Register this node as a child of the parent node
           const childId = msg.payload;
           const childObj = this.RED.nodes.getNode(childId);
           this.source.childRegistrationUtils.registerChild(childObj.source ,msg.positionVsParent);
           break;
+        }
       }
       done();
     });

src/specificClass.js

@@ -97,7 +97,7 @@ class pumpingStation {
 
       // add one for group later
       if( softwareType == "machineGroup" ){
-
+        /* intentionally empty */
       }
 
       // add one for pumping station
@@ -139,7 +139,7 @@ class pumpingStation {
 
     //get downflow
     const seriesExists = this.measurements.type("flow").variant("predicted").position(flowDir).exists();
-    if(!seriesExists){return};
+    if(!seriesExists){return}
 
     const series = this.measurements.type("flow").variant("predicted").position(flowDir);
     const currFLow = series.getLaggedValue(0, "m3/s"); // { value, timestamp, unit }
@@ -327,6 +327,7 @@ class pumpingStation {
     const { heightOverflow, heightOutlet, surfaceArea } = this.basin;
     const flowDiff = this.measurements.type("flow").variant(variant).difference({ from: "downstream", to: "upstream", unit: "m3/s" });
 
+    let remainingHeight;
     switch(true){
       case(flowDiff>0):
         remainingHeight = Math.max(heightOverflow - level, 0);
@@ -348,6 +349,7 @@ class pumpingStation {
   _calcDirection(flowDiff){
 
     let direction = null;
+    const flowThreshold = 0.001;
 
      switch (true){
       case flowDiff > flowThreshold:
@@ -564,7 +566,7 @@ function createFlowMeasurementConfig(name, position) {
 
 function createMachineConfig(name) {
 
-  curve = require('C:/Users/zn375/.node-red/public/fallbackData.json');
+  const curve = require('C:/Users/zn375/.node-red/public/fallbackData.json');
   return {
     
     general: {