Promote knowledge for Microsoft review skills (#153)

Move canonical knowledge for Microsoft-owned review domains into the Microsoft layer and document the skill/knowledge co-location policy.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Co-authored-by: Jesper Schulz-Wedde <jesper.schulzwedde@microsoft.com>
Copilot-Session: 2a6ea875-d38e-4f30-aadb-0d606f9be231

microsoft/knowledge/data-modeling/owning-table-must-delete-dependents-in-ondelete.good.al

@@ -0,0 +1,55 @@
+table 50100 "Order Header"
+{
+    // The owning table needs delete rights on what it owns. Granting D only on the
+    // header is a common miss and makes OnDelete fail for a non-SUPER user.
+    Permissions = tabledata "Order Line" = rd;
+
+    fields
+    {
+        field(1; "Entry No."; Integer)
+        {
+            DataClassification = CustomerContent;
+        }
+    }
+
+    keys
+    {
+        key(PK; "Entry No.")
+        {
+            Clustered = true;
+        }
+    }
+
+    trigger OnDelete()
+    var
+        OrderLine: Record "Order Line";
+    begin
+        OrderLine.SetRange("Header Entry No.", "Entry No.");
+        // Pass false only when Order Line has no OnDelete of its own.
+        OrderLine.DeleteAll(true);
+    end;
+}
+
+table 50101 "Order Line"
+{
+    fields
+    {
+        field(1; "Line No."; Integer)
+        {
+            DataClassification = CustomerContent;
+        }
+        field(2; "Header Entry No."; Integer)
+        {
+            DataClassification = CustomerContent;
+            TableRelation = "Order Header"."Entry No.";
+        }
+    }
+
+    keys
+    {
+        key(PK; "Line No.")
+        {
+            Clustered = true;
+        }
+    }
+}