Label: add | separator between brand and model

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

src/routes/(print)/print/batch/+page.svelte

@@ -39,7 +39,7 @@
 			<div style="margin-top: 1mm;">
 				{#if label.brand || label.model}
 					<div style="font-size: 6.5pt; color: #444; line-height: 1.3; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 100%;">
-						{[label.brand, label.model].filter(Boolean).join(' ')}
+						{[label.brand, label.model].filter(Boolean).join(' | ')}
 					</div>
 				{/if}
 				{#if label.serialNumber}

src/routes/(print)/print/device/[id]/+page.svelte

@@ -47,7 +47,7 @@
 			<div style="margin-top: 1mm;">
 				{#if data.device.brand || data.device.model}
 					<div style="font-size: 6.5pt; color: #444; line-height: 1.3; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 100%;">
-						{[data.device.brand, data.device.model].filter(Boolean).join(' ')}
+						{[data.device.brand, data.device.model].filter(Boolean).join(' | ')}
 					</div>
 				{/if}
 				{#if data.device.serialNumber}