fix(childRegistrationUtils): alias rotatingmachine/machinegroupcontrol so production parents see them

The MGC and pumpingStation registerChild handlers dispatch on
softwareType === 'machine' / 'machinegroup' / 'pumpingstation' /
'measurement'. But buildConfig sets functionality.softwareType to the
lowercased node name, so in production rotatingMachine reports
'rotatingmachine' and machineGroupControl reports 'machinegroupcontrol'.
Result: the MGC <-> rotatingMachine and pumpingStation <-> MGC wiring
silently never hit the right branch in production, even though every
unit test passes (tests pass an already-aliased softwareType manually).

Fix: tiny SOFTWARE_TYPE_ALIASES map at the central registerChild
dispatcher in childRegistrationUtils. Real production names get
translated to the dispatch keys parents already check for, while tests
that pass already-aliased keys are unaffected (their values aren't in
the alias map and pass through unchanged).

  rotatingmachine        -> machine
  machinegroupcontrol    -> machinegroup

Verified end-to-end on Dockerized Node-RED: MGC now reports
'3 machine(s) connected' when wired to 3 rotatingMachine ports;
pumpingStation registers MGC as a machinegroup child and listens to
its predicted-flow stream.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/helper/childRegistrationUtils.js

@@ -1,3 +1,17 @@
+// Map a child's raw softwareType (the lowercased node name from
+// buildConfig) to the "role" key that parent registerChild() handlers
+// dispatch on. Without this, MGC/pumpingStation register-handlers (which
+// branch on 'machine' / 'machinegroup' / 'pumpingstation' / 'measurement')
+// silently miss every real production child because rotatingMachine
+// reports softwareType='rotatingmachine' and machineGroupControl reports
+// 'machinegroupcontrol'. Existing tests that pass already-aliased keys
+// ('machine', 'machinegroup') stay green because those aren't in the
+// alias map and pass through unchanged.
+const SOFTWARE_TYPE_ALIASES = {
+  rotatingmachine: 'machine',
+  machinegroupcontrol: 'machinegroup',
+};
+
 class ChildRegistrationUtils {
   constructor(mainClass) {
     this.mainClass = mainClass;
@@ -15,7 +29,8 @@ class ChildRegistrationUtils {
       return false;
     }
 
-    const softwareType = (child.config.functionality.softwareType || '').toLowerCase();
+    const rawSoftwareType = (child.config.functionality.softwareType || '').toLowerCase();
+    const softwareType = SOFTWARE_TYPE_ALIASES[rawSoftwareType] || rawSoftwareType;
     const name = child.config.general.name || child.config.general.id || 'unknown';
     const id = child.config.general.id || name;