fix(server): 赛事包导出传入项目名，修复 GET /api/export/project.zip 恒 500

web/src/admin/pages/ExportPage.vue

@@ -7,6 +7,7 @@ import ConfirmDialog from '../components/ConfirmDialog.vue'
 import MockBadge from '../components/system/MockBadge.vue'
 import type { IconName } from '../components/icons'
 import {
+  describeError,
   projectApi,
   resultsExportApi,
   rulesApi,
@@ -137,7 +138,7 @@ async function download(kind: ResultExportKind): Promise<void> {
     adminApi.client.exports.save(result.data.blob, result.data.filename)
     toast.success(`已导出 ${result.data.filename}`, result.mock ? '示例数据：内容为占位文本' : null)
   } catch (caught) {
-    toast.error('导出失败', caught instanceof Error ? caught.message : null)
+    toast.error('导出失败', describeError(caught))
   } finally {
     pendingExport.value = null
   }
@@ -152,7 +153,7 @@ async function exportProject(): Promise<void> {
     adminApi.client.exports.save(result.data.blob, result.data.filename)
     toast.success('赛事项目包已导出', result.mock ? '示例数据：内容为占位文本' : '整包拷走即可在另一台机器复现')
   } catch (caught) {
-    projectError.value = caught instanceof Error ? caught.message : '导出失败'
+    projectError.value = describeError(caught)
   } finally {
     projectExporting.value = false
   }
@@ -206,7 +207,7 @@ async function runProjectImport(): Promise<void> {
     projectFile.value = null
     if (projectFileInput.value !== null) projectFileInput.value.value = ''
   } catch (caught) {
-    projectError.value = caught instanceof Error ? caught.message : '导入失败'
+    projectError.value = describeError(caught)
   } finally {
     projectImporting.value = false
   }
@@ -221,7 +222,7 @@ async function exportRules(): Promise<void> {
     adminApi.client.exports.save(result.data.blob, result.data.filename)
     toast.success('规则包已导出', result.data.filename)
   } catch (caught) {
-    rulesError.value = caught instanceof Error ? caught.message : '导出失败'
+    rulesError.value = describeError(caught)
   } finally {
     rulesExporting.value = false
   }
@@ -268,7 +269,7 @@ async function previewRules(): Promise<void> {
     rulesPreview.value = result.data
   } catch (caught) {
     rulesPreview.value = null
-    rulesError.value = caught instanceof Error ? caught.message : '预览失败'
+    rulesError.value = describeError(caught)
   } finally {
     rulesPreviewing.value = false
   }
@@ -293,7 +294,7 @@ async function applyRules(): Promise<void> {
       `已全量重算 ${result.data.recalculatedLedgerRows} 条积分流水`,
     )
   } catch (caught) {
-    rulesError.value = caught instanceof Error ? caught.message : '导入失败'
+    rulesError.value = describeError(caught)
   } finally {
     rulesApplying.value = false
   }