fix(四小时导出): 修复无活动事务错误; Excel仅导出活动矩阵总表单Sheet

server/src/routes/export.ts

@@ -408,8 +408,10 @@ router.post('/four-hour/confirm', authMiddleware, (req: AuthRequest, res) => {
         insItem.run(exportId, it.hour_id, it.delta);
       }
     }
+    try { db.execCompat('COMMIT'); } catch (err: any) {
+      if (!/no transaction is active/i.test(String(err?.message || ''))) throw err;
+    }
     db.save();
-    db.execCompat('COMMIT');
     res.json({ ok: true, updated, skipped, total_processed: plan.length, export_id: exportId, total_applied: Number(totalApplied.toFixed(1)) });
   } catch (e: any) {
     try { db.execCompat('ROLLBACK'); } catch {}
@@ -487,8 +489,10 @@ router.post('/four-hour/void', authMiddleware, (req: AuthRequest, res) => {
       `\n[已撤回 ${new Date().toISOString().slice(0,19).replace('T',' ')}${adminUsername ? ' by '+adminUsername : ''}]`,
       exportId
     );
+    try { db.execCompat('COMMIT'); } catch (err: any) {
+      if (!/no transaction is active/i.test(String(err?.message || ''))) throw err;
+    }
     db.save();
-    db.execCompat('COMMIT');
     res.json({ ok: true, export_id: exportId, rolled, skipped, rolled_hours: Number(rolledHours.toFixed(1)) });
   } catch (e: any) {
     try { db.execCompat('ROLLBACK'); } catch {}