feat: add shadow-only SQL Server package

ruoyi-admin/src/main/java/com/ruoyi/algorithm/shadow/ShadowPlanningEngine.java

@@ -30,6 +30,7 @@ public class ShadowPlanningEngine {
         this.properties = Objects.requireNonNull(properties, "properties");
         this.transactions = new TransactionTemplate(Objects.requireNonNull(transactionManager, "transactionManager"));
         this.transactions.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRES_NEW);
+        this.transactions.setIsolationLevel(TransactionDefinition.ISOLATION_READ_UNCOMMITTED);
         this.transactions.setTimeout(properties.getTimeoutSeconds());
     }