Refactor result view query to support LastBatch retrieval

Replaced Last with LastBatch in ReadResultViewQuery to enable fetching all results from the most recent batch. Updated handler logic and tests accordingly, and added GetLastBatchEntitiesAsync to retrieve entities by latest BatchId.

tests/ReC.Tests/Application/RecActions/InvokeBatchDuplicateGuardTests.cs

@@ -32,7 +32,7 @@ public class InvokeBatchDuplicateGuardTests : RecApplicationTestBase
         {
             ProfileId = ProfileId,
             IncludeAction = false,
-            Last = true
+            LastBatch = true
         });
 
         var existingBatchId = results.FirstOrDefault()?.BatchId;