feat(标签打印): 优化标签打印功能并新增批量导出

- 新增html2canvas依赖以支持高清打印
- 重构标签打印逻辑，解决二维码丢失和文字模糊问题
- 优化外标签样式布局和公司名称显示
- 新增标签预览功能，可在物料列表中直接查看
- 实现批量导出功能，支持任务规划和进度展示
- 添加导出配置选项，可调整清晰度和单次导出数量

klp-ui/package.json

@@ -52,15 +52,16 @@
     "flv.js": "^1.6.2",
     "fuse.js": "6.4.3",
     "highlight.js": "10.5.0",
+    "html2canvas": "^1.4.1",
     "js-beautify": "1.13.0",
     "js-cookie": "3.0.1",
     "jsbarcode": "^3.12.1",
     "jsencrypt": "3.0.0-rc.1",
     "jspdf": "^2.5.2",
-    "pdfjs-dist": "^3.6.172",
     "konva": "^10.0.2",
     "mqtt": "^5.13.3",
     "nprogress": "0.2.0",
+    "pdfjs-dist": "^3.6.172",
     "print-js": "^1.6.0",
     "qrcode": "^1.5.4",
     "quill": "1.3.7",