feat(miniprogram): add pound QR label helpers and node checks.

Co-authored-by: Cursor <cursoragent@cursor.com>

miniprogram/scripts/test_db_pound_qr.mjs

@@ -0,0 +1,26 @@
+import assert from 'node:assert/strict'
+import {
+  poundQrDialogTitle,
+  formatPoundQrProductLine,
+  normalizePoundQrRemarks
+} from '../utils/dbPoundQr.js'
+
+assert.equal(poundQrDialogTitle('出库'), '出库磅单二维码')
+assert.equal(poundQrDialogTitle('入库'), '入库磅单二维码')
+assert.equal(poundQrDialogTitle(''), '入库磅单二维码')
+
+assert.equal(formatPoundQrProductLine({ product: '尿素', specification: '', quantity: 32 }, '吨'), '尿素（32 吨）')
+assert.equal(
+  formatPoundQrProductLine({ product: '尿素颗粒', specification: '颗粒', quantity: 10 }, '吨'),
+  '尿素 颗粒（10 吨）'
+)
+assert.equal(
+  formatPoundQrProductLine({ product: '尿素', specification: '46%', quantity: 1 }, '吨'),
+  '尿素 46%（1 吨）'
+)
+
+assert.equal(normalizePoundQrRemarks({ remarks: '急单' }), '急单')
+assert.equal(normalizePoundQrRemarks({ remark: '备货' }), '备货')
+assert.equal(normalizePoundQrRemarks({ remarks: '  ', remark: '' }), '')
+
+console.log('test_db_pound_qr: ok')