Persist cutting rules in database

backend/test/cuttingSettingsService.test.js

@@ -0,0 +1,40 @@
+const assert = require('node:assert/strict');
+const test = require('node:test');
+
+const {
+    normalizeFamilyKey,
+    normalizeFamilyYields,
+    normalizeProductOverrides
+} = require('../services/cuttingSettingsService');
+
+test('normalizeFamilyKey accepts only known cut families', () => {
+    assert.equal(normalizeFamilyKey('blcs'), 'BLCS');
+    assert.equal(normalizeFamilyKey(' BLOS '), 'BLOS');
+    assert.equal(normalizeFamilyKey('OUTROS'), '');
+    assert.equal(normalizeFamilyKey('unknown'), '');
+});
+
+test('normalizeFamilyYields keeps positive numeric yield rules', () => {
+    assert.deepEqual(normalizeFamilyYields({
+        BLCS: '50',
+        BLOS: 0,
+        BLMC: -1,
+        BLPM: '12.5',
+        OUTROS: 99
+    }), {
+        BLCS: 50,
+        BLPM: 12.5
+    });
+});
+
+test('normalizeProductOverrides trims and removes empty overrides', () => {
+    assert.deepEqual(normalizeProductOverrides({
+        ' SKU-1 ': { familyKey: 'blcs', color: ' Preto ', size: ' m ' },
+        'SKU-2': { familyKey: 'OUTROS', color: '', size: '' },
+        'SKU-3': { familyKey: '', color: ' Branco ', size: '' },
+        'SKU-4': null
+    }), {
+        'SKU-1': { familyKey: 'BLCS', color: 'Preto', size: 'M' },
+        'SKU-3': { familyKey: '', color: 'Branco', size: '' }
+    });
+});