B3.3 follow-up: drop _unitView mirror; use UnitPolicy property bags directly

Same as MGC — UnitPolicy property bags replace the manual _unitView/
unitPolicyView reassignment. specificClass.js 400→377. 196/196 tests
still pass.

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

src/io/output.js

@@ -24,7 +24,7 @@ const FILL = {
 const SHOW_METRICS = new Set(['operational', 'warmingup', 'accelerating', 'decelerating']);
 
 function buildOutput(host) {
-  const o = host.measurements.getFlattenedOutput({ requestedUnits: host.unitPolicyView.output });
+  const o = host.measurements.getFlattenedOutput({ requestedUnits: host.unitPolicy.output });
   o.state = host.state.getCurrentState();
   o.runtime = host.state.getRunTimeHours();
   o.ctrl = host.state.getCurrentPosition();
@@ -74,7 +74,7 @@ function buildStatusBadge(host) {
     const fill = FILL[stateName] || 'grey';
     const parts = [`${host.currentMode}: ${symbol}`];
     if (SHOW_METRICS.has(stateName)) {
-      const fu = host.unitPolicyView.output.flow || 'm3/h';
+      const fu = host.unitPolicy.output.flow || 'm3/h';
       const flow = Math.round(host.measurements.type('flow').variant('predicted').position('downstream').getCurrentValue(fu) ?? 0);
       const power = Math.round(host.measurements.type('power').variant('predicted').position('atEquipment').getCurrentValue('kW') ?? 0);
       const pos = Math.round((host.state?.getCurrentPosition?.() ?? 0) * 100) / 100;

src/prediction/predictionMath.js

@@ -7,7 +7,7 @@
  */
 
 function calcFlow(host, x) {
-  const u = host.unitPolicyView.canonical.flow;
+  const u = host.unitPolicy.canonical.flow;
   if (host.hasCurve) {
     if (!host._isOperationalState()) {
       host.measurements.type('flow').variant('predicted').position('downstream').value(0, Date.now(), u);
@@ -27,7 +27,7 @@ function calcFlow(host, x) {
 }
 
 function calcPower(host, x) {
-  const u = host.unitPolicyView.canonical.power;
+  const u = host.unitPolicy.canonical.power;
   if (host.hasCurve) {
     if (!host._isOperationalState()) {
       host.measurements.type('power').variant('predicted').position('atEquipment').value(0, Date.now(), u);
@@ -52,7 +52,7 @@ function inputFlowCalcPower(host, flow) {
   }
   host.logger.warn('No curve data available for power calculation. Returning 0.');
   host.measurements.type('power').variant('predicted').position('atEquipment')
-    .value(0, Date.now(), host.unitPolicyView.canonical.power);
+    .value(0, Date.now(), host.unitPolicy.canonical.power);
   return 0;
 }
 

src/pressure/pressureSelector.js

@@ -43,7 +43,7 @@ function getMeasuredPressure(host) {
   }
   host.logger.error('No valid pressure measurements available to calculate prediction using last known pressure');
   applyDiff(0);
-  const fu = host.unitPolicyView.canonical.flow;
+  const fu = host.unitPolicy.canonical.flow;
   host.measurements.type('flow').variant('predicted').position('max').value(host.predictFlow.currentFxyYMax, Date.now(), fu);
   host.measurements.type('flow').variant('predicted').position('min').value(host.predictFlow.currentFxyYMin, Date.now(), fu);
   return 0;

src/specificClass.js

@@ -56,9 +56,6 @@ class Machine extends BaseDomain {
     this.config = this.configUtils.updateConfig(this.config, {
       general: { name: `${this.config.functionality?.softwareType}_${this.config.general.id}` },
     });
-    this.unitPolicyView = this._freezeUnitView(this.unitPolicy);
-    this._unitPolicyInstance = this.unitPolicy;
-    this.unitPolicy = this.unitPolicyView;
 
     this._setupCurves();
     this.groupPredictFlow = null; this.groupPredictPower = null; this.groupPredictCtrl = null; this.groupNCog = 0;
@@ -68,33 +65,13 @@ class Machine extends BaseDomain {
     this._setupChildren();
   }
 
-  _freezeUnitView(p) {
-    const slot = (m, k) => (typeof p[m] === 'function' ? p[m](k) : p[m]?.[k]);
-    return Object.freeze({
-      canonical: Object.freeze({
-        pressure: slot('canonical', 'pressure'), atmPressure: slot('canonical', 'atmPressure') || 'Pa',
-        flow: slot('canonical', 'flow'), power: slot('canonical', 'power'),
-        temperature: slot('canonical', 'temperature'),
-      }),
-      output: Object.freeze({
-        pressure: slot('output', 'pressure'), flow: slot('output', 'flow'),
-        power: slot('output', 'power'), temperature: slot('output', 'temperature'),
-        atmPressure: slot('output', 'atmPressure') || 'Pa',
-      }),
-      curve: Object.freeze({
-        pressure: slot('curve', 'pressure'), flow: slot('curve', 'flow'),
-        power: slot('curve', 'power'), control: slot('curve', 'control'),
-      }),
-    });
-  }
-
   _setupCurves() {
     this.model = this.config.asset?.model;
     const { rawCurve, error } = loadModelCurve(this.model);
     this.rawCurve = rawCurve;
     if (error) { this.logger.error(`${error} in machineConfig. Cannot make predictions.`); this._installNullPredictors(); return; }
     try {
-      this.curve = normalizeMachineCurve(rawCurve, this.unitPolicyView, this.logger);
+      this.curve = normalizeMachineCurve(rawCurve, this.unitPolicy, this.logger);
       this.config = this.configUtils.updateConfig(this.config, { asset: { ...this.config.asset, machineCurve: this.curve } });
       const built = buildPredictors(this.config.asset.machineCurve);
       this.predictors = built;
@@ -150,7 +127,7 @@ class Machine extends BaseDomain {
     this.virtualPressureChildIds = { upstream: 'dashboard-sim-upstream', downstream: 'dashboard-sim-downstream' };
     this.realPressureChildIds = { upstream: new Set(), downstream: new Set() };
     this.virtualPressureChildren = new VirtualPressureChildren({
-      logger: this.logger, unitPolicy: this.unitPolicyView, parentRef: this,
+      logger: this.logger, unitPolicy: this.unitPolicy, parentRef: this,
       ids: this.virtualPressureChildIds,
     }).build();
     this.pressureInit = new PressureInitialization({
@@ -184,10 +161,10 @@ class Machine extends BaseDomain {
   }
 
   _init() {
-    const tu = this.unitPolicyView.output.temperature;
+    const tu = this.unitPolicy.output.temperature;
     this.measurements.type('temperature').variant('measured').position('atEquipment').value(15, Date.now(), tu);
     this.measurements.type('atmPressure').variant('measured').position('atEquipment').value(101325, Date.now(), 'Pa');
-    const fu = this.unitPolicyView.canonical.flow;
+    const fu = this.unitPolicy.canonical.flow;
     const fmin = this.predictFlow ? this.predictFlow.currentFxyYMin : 0;
     const fmax = this.predictFlow ? this.predictFlow.currentFxyYMax : 0;
     this.measurements.type('flow').variant('predicted').position('max').value(fmax, Date.now(), fu);
@@ -259,8 +236,8 @@ class Machine extends BaseDomain {
   // ── state-machine driven recompute ─────────────────────────────────
   _updateState() {
     if (!this._isOperationalState()) {
-      const fu = this.unitPolicyView.canonical.flow;
+      const fu = this.unitPolicy.canonical.flow;
-      const pu = this.unitPolicyView.canonical.power;
+      const pu = this.unitPolicy.canonical.power;
       this.measurements.type('flow').variant('predicted').position('downstream').value(0, Date.now(), fu);
       this.measurements.type('flow').variant('predicted').position('atEquipment').value(0, Date.now(), fu);
       this.measurements.type('power').variant('predicted').position('atEquipment').value(0, Date.now(), pu);
@@ -366,9 +343,9 @@ class Machine extends BaseDomain {
 
   updateCurve(newCurve) {
     this.logger.info('Updating machine curve');
-    const normalized = normalizeMachineCurve(newCurve, this.unitPolicyView, this.logger);
+    const normalized = normalizeMachineCurve(newCurve, this.unitPolicy, this.logger);
     this.config = this.configUtils.updateConfig(this.config, {
-      asset: { machineCurve: normalized, curveUnits: this.unitPolicyView.curve },
+      asset: { machineCurve: normalized, curveUnits: this.unitPolicy.curve },
     });
     if (!this.predictFlow || !this.predictPower || !this.predictCtrl) {
       const built = buildPredictors(this.config.asset.machineCurve);

test/edge/nodeClass-routing.edge.test.js

@@ -106,7 +106,7 @@ test('source.getStatusBadge shows warning when pressure inputs are not initializ
     state: { getCurrentState: () => 'operational', getCurrentPosition: () => 50 },
     pressureInit: { getStatus: () => ({ initialized: false, hasUpstream: false, hasDownstream: false, hasDifferential: false }) },
     measurements: { type() { return { variant() { return { position() { return { getCurrentValue() { return 0; } }; } }; } }; } },
-    unitPolicyView: { output: { flow: 'm3/h' } },
+    unitPolicy: { output: { flow: 'm3/h' } },
     logger: { error: () => {} },
   };
   // Import the buildStatusBadge helper directly — it's the same code the