Add trigger-default and declined-Confirm knowledge with review cues

Three Microsoft-layer articles with good/bad samples:
- error-handling/declined-confirm-must-abort-not-partially-apply
- data-modeling/delete-master-data-with-trigger
- data-modeling/master-data-must-be-inserted-with-trigger

Wire targeted worklist cues into al-error-handling-review and
al-data-modeling-review and register the samples in review-fixtures.json.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

microsoft/knowledge/error-handling/declined-confirm-must-abort-not-partially-apply.bad.al

@@ -0,0 +1,46 @@
+table 50100 "Sample Mailbox Watch"
+{
+    fields
+    {
+        field(1; "Code"; Code[20])
+        {
+        }
+        field(2; "Watched Email"; Text[250])
+        {
+            trigger OnValidate()
+            var
+                StopWatchingQst: Label 'Email %1 is being watched. Stop watching it?', Comment = '%1 = previous email address';
+            begin
+                if (xRec."Watched Email" <> '') and (xRec."Watched Email" <> "Watched Email") then
+                    if Confirm(StopWatchingQst, false, xRec."Watched Email") then
+                        Unsubscribe("Subscription ID");
+                // On "no" the old subscription is never removed, and the only field
+                // that tracked it is overwritten here: it is orphaned.
+                "Subscription ID" := Subscribe("Watched Email");
+            end;
+        }
+        field(3; "Subscription ID"; Guid)
+        {
+            Editable = false;
+        }
+    }
+
+    keys
+    {
+        key(PK; "Code")
+        {
+            Clustered = true;
+        }
+    }
+
+    local procedure Subscribe(EmailAddress: Text[250]): Guid
+    begin
+        // Registers EmailAddress with the external watch service and returns its subscription.
+        exit(CreateGuid());
+    end;
+
+    local procedure Unsubscribe(SubscriptionId: Guid)
+    begin
+        // Removes the subscription from the external watch service.
+    end;
+}