Agents - Introduce new Yaml structure (#7863)

#### Summary 
Introduce new Yaml structure for Agent tests and bugfixes

#### Work Item(s)
Fixes
[AB#582122](https://dynamicssmb2.visualstudio.com/1fcb79e7-ab07-432a-a3c6-6cf5a88ba4a5/_workitems/edit/582122)

Author: nikolakukrika

src/Tools/AI Test Toolkit/src/AITTestContext.Codeunit.al

@@ -39,7 +39,27 @@ codeunit 149044 "AIT Test Context"
     end;
 
     /// <summary>
-    /// Get the Test Setup from the input dataset for the current iteration.
+    /// Get the turn setup from the input dataset for the current iteration.
+    /// </summary>
+    /// <returns>A Test Input Json codeunit for the turn_setup element.</returns>
+    procedure GetTurnSetup(): Codeunit "Test Input Json"
+    begin
+        exit(AITTestContextImpl.GetTurnSetup());
+    end;
+
+    /// <summary>
+    /// Tries to get the turn setup from the input dataset for the current iteration.
+    /// </summary>
+    /// <param name="TurnSetup">Returns the turn_setup Test Input Json codeunit when the element exists.</param>
+    /// <returns>True if the turn_setup element exists for the current turn; false otherwise.</returns>
+    procedure GetTurnSetup(var TurnSetup: Codeunit "Test Input Json"): Boolean
+    begin
+        exit(AITTestContextImpl.GetTurnSetup(TurnSetup));
+    end;
+
+    /// <summary>
+    /// Get the Test Setup from the input dataset for the current iteration using the legacy 'test_setup' element.
+    /// Retained for backward compatibility with datasets that have not migrated to 'turn_setup' — new code should use <see cref="GetTurnSetup"/>.
     /// </summary>
     /// <returns>A Test Input Json codeunit for the test_setup element.</returns>
     procedure GetTestSetup(): Codeunit "Test Input Json"

src/Tools/AI Test Toolkit/src/AITTestContextImpl.Codeunit.al

@@ -33,6 +33,7 @@ codeunit 149043 "AIT Test Context Impl."
         ContinueOnFailureTok: Label 'continue_on_failure', Locked = true;
         TestMetricsTok: Label 'test_metrics', Locked = true;
         TestSetupTok: Label 'test_setup', Locked = true;
+        TurnSetupTok: Label 'turn_setup', Locked = true;
         QuestionTok: Label 'question', Locked = true;
         TurnsTok: Label 'turns', Locked = true;
         MessagesTok: Label 'messages', Locked = true;
@@ -43,6 +44,7 @@ codeunit 149043 "AIT Test Context Impl."
         ConversationTok: Label 'conversation', Locked = true;
         HasSuiteSetupData: Boolean;
         SuiteSetupDataNotLoadedErr: Label 'Per-suite setup data has not been loaded.';
+        TurnSetupNotFoundErr: Label 'The turn_setup element was not found for the current turn.';
         SuiteSetupInputCodeTok: Label 'SUITE-SETUP', Locked = true;
 
     /// <summary>
@@ -58,6 +60,35 @@ codeunit 149043 "AIT Test Context Impl."
 
     /// <summary>
     /// Get the Test Setup from the input dataset for the current iteration.
+    /// Errors if the turn_setup element is not found for the current turn.
+    /// </summary>
+    /// <returns>A Test Input Json codeunit for the turn_setup element.</returns>
+    procedure GetTurnSetup(): Codeunit "Test Input Json"
+    var
+        TurnSetup: Codeunit "Test Input Json";
+    begin
+        if not GetTurnSetup(TurnSetup) then
+            Error(TurnSetupNotFoundErr);
+        exit(TurnSetup);
+    end;
+
+    /// <summary>
+    /// Tries to get the Turn Setup from the input dataset for the current iteration.
+    /// </summary>
+    /// <param name="TurnSetup">Returns the turn_setup Test Input Json codeunit when the element exists.</param>
+    /// <returns>True if the turn_setup element exists for the current turn; false otherwise.</returns>
+    procedure GetTurnSetup(var TurnSetup: Codeunit "Test Input Json"): Boolean
+    var
+        ElementFound: Boolean;
+    begin
+        TurnSetup := GetTestInput(TurnSetupTok, ElementFound);
+        exit(ElementFound);
+    end;
+
+    /// <summary>
+    /// Get the Test Setup from the input dataset for the current iteration using the legacy 'test_setup' element.
+    /// Errors if the test_setup element is not found for the current turn.
+    /// Retained for backward compatibility with datasets that have not migrated to 'turn_setup'.
     /// </summary>
     /// <returns>A Test Input Json codeunit for the test_setup element.</returns>
     procedure GetTestSetup(): Codeunit "Test Input Json"

src/Tools/AI Test Toolkit/src/TestSuite/AITALTestSuiteMgt.Codeunit.al

@@ -12,7 +12,9 @@ using System.Utilities;
 codeunit 149037 "AIT AL Test Suite Mgt"
 {
     Permissions = tabledata "Test Method Line" = rmid,
-                  tabledata "AL Test Suite" = rmid;
+                  tabledata "AL Test Suite" = rmid,
+                  tabledata "Test Input" = rmid,
+                  tabledata "Test Input Group" = rmid;
 
     var
         RunProcedureOperationTok: Label 'Run Procedure', Locked = true;

src/Tools/AI Test Toolkit/src/TestSuite/AITTestSuite.Page.al

@@ -563,11 +563,12 @@ page 149031 "AIT Test Suite"
 
         if CurrentSuiteCode = '' then begin
             AITTestSuite.Copy(Rec);
-            AITTestSuite.FindFirst();
+            if not (AITTestSuite.FindFirst()) then
+                exit;
             CurrentSuiteCode := AITTestSuite.Code;
         end;
 
-        Rec.Get(CurrentSuiteCode);
+        if Rec.Get(CurrentSuiteCode) then;
     end;
 
     local procedure ChangeTestSuite()

src/Tools/AI Test Toolkit/src/TestSuite/AITTestSuiteMgt.Codeunit.al

@@ -13,6 +13,8 @@ using System.Utilities;
 codeunit 149034 "AIT Test Suite Mgt."
 {
     Access = Internal;
+    Permissions = tabledata "Test Input Group" = rmid,
+                  tabledata "Test Input" = rmid;
 
     var
         GlobalAITTestSuite: Record "AIT Test Suite";
@@ -124,7 +126,7 @@ codeunit 149034 "AIT Test Suite Mgt."
 
         AITTestRunInputHandler.SetInput(AITLogEntry."Test Input Group Code", AITLogEntry."Test Input Code");
 
-        BindSubscription(AITTestRunInputHandler);
+        if BindSubscription(AITTestRunInputHandler) then;
         RunAITestLine(AITTestMethodLineForLogEntry, false);
         UnbindSubscription(AITTestRunInputHandler);