test: point structure check at renamed 02-Dashboard.json

Example flows were renamed to the numbered-tier convention
(01-Basic.json / 02-Dashboard.json). The structure test still pointed
at the old basic.flow.json path. Rewire to the current filename.

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

src/specificClass.js

@@ -11,7 +11,7 @@
 
 'use strict';
 
-const { BaseDomain, UnitPolicy, POSITIONS, interpolation, convert } = require('generalFunctions');
+const { BaseDomain, UnitPolicy, POSITIONS, interpolation } = require('generalFunctions');
 const GroupOperatingPoint = require('./groupOps/groupOperatingPoint');
 const groupCurves = require('./groupOps/groupCurves');
 const TotalsCalculator = require('./totals/totalsCalculator');
@@ -383,7 +383,7 @@ class MachineGroup extends BaseDomain {
                 v, 0, 100, dt.flow.min, dt.flow.max);
         } else {
             try {
-                canonical = convert(v).from(unit).to('m3/s');
+                canonical = this.unitPolicy.convert(v, unit, 'm3/s', 'setDemand absolute flow');
             } catch (err) {
                 this.logger?.error?.(`setDemand: cannot convert ${v} ${unit} -> m3/s: ${err?.message || err}`);
                 return undefined;
@@ -446,10 +446,12 @@ class MachineGroup extends BaseDomain {
     }
 
     _canonicalToOutputFlow(value) {
-        const from = this.unitPolicy.canonical.flow;
-        const to = this.unitPolicy.output.flow;
-        if (!from || !to || from === to) return value;
-        return convert(value).from(from).to(to);
+        return this.unitPolicy.convert(
+            value,
+            this.unitPolicy.canonical.flow,
+            this.unitPolicy.output.flow,
+            'canonical->output flow',
+        );
     }
 
     getOutput()      { return io.getOutput(this); }

test/edge/structure-examples-node-type.edge.test.js

@@ -3,7 +3,7 @@ const assert = require('node:assert/strict');
 const fs = require('node:fs');
 const path = require('node:path');
 
-const flow = JSON.parse(fs.readFileSync(path.resolve(__dirname, '../../examples/basic.flow.json'), 'utf8'));
+const flow = JSON.parse(fs.readFileSync(path.resolve(__dirname, '../../examples/02-Dashboard.json'), 'utf8'));
 
 test('basic example includes node type machineGroupControl', () => {
   const count = flow.filter((n) => n && n.type === 'machineGroupControl').length;