fix(lab-sample): 台账改聚合真实市场生产质检数据

去掉 Excel 演示独有行，源表字段优先于补充表；按协议样本与科研捐献接收关联已发生业务数据，并修复导出分页超限。

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

web-admin/src/views/lab-sample-processing/LabSampleProcessingPage.vue

@@ -275,15 +275,28 @@
   async function handleExport() {
     exporting.value = true
     try {
-      const res = await fetchLabSampleList(props.dataset, {
-        keyword: searchForm.keyword || undefined,
-        dateFrom: dateRange.value?.[0],
-        dateTo: dateRange.value?.[1],
-        page: 1,
-        pageSize: 5000
-      })
-      const cols = res?.fields?.length ? res.fields : fields.value
-      const rows = res?.list || []
+      // 列表接口 pageSize 上限为 200，导出需分页拉全量后再生成 xlsx
+      const pageSize = 200
+      let page = 1
+      let total = Number.POSITIVE_INFINITY
+      const rows: Record<string, any>[] = []
+      let cols = fields.value
+      while (rows.length < total) {
+        const res = await fetchLabSampleList(props.dataset, {
+          keyword: searchForm.keyword || undefined,
+          dateFrom: dateRange.value?.[0],
+          dateTo: dateRange.value?.[1],
+          page,
+          pageSize
+        })
+        if (res?.fields?.length) cols = res.fields
+        total = Number(res?.total ?? 0)
+        const batch = res?.list || []
+        rows.push(...batch)
+        if (!batch.length || batch.length < pageSize) break
+        page += 1
+        if (page > 500) break
+      }
       const ExcelJS = (await import('exceljs')).default
       const workbook = new ExcelJS.Workbook()
       const sheet = workbook.addWorksheet(props.title || props.dataset)