knowledge(events): serialize the setup-counter increment; promote article and wire the review skill

PR #152 round 3 (JesperSchulz):
- The good sample's OnAfterInsertEvent subscriber still raced on the
  shared "Transfer Setup Good" singleton (Get/increment/Modify);
  AutoIncrement only protected the request key. Added
  TransferSetup.LockTable() before Get() to serialize concurrent
  background sessions.
- Promoted changecompany-runs-triggers-in-the-calling-company from
  community/knowledge/events/ to microsoft/knowledge/events/, and wired
  ChangeCompany/StartSession/RunTrigger tokens plus a targeted
  detection cue into microsoft/skills/review/al-events-review.md so a
  diff containing the anti-pattern reliably worklists this article,
  preserving the documented RunTrigger=false hand-off exception.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

microsoft/knowledge/events/changecompany-runs-triggers-in-the-calling-company.good.al

@@ -0,0 +1,84 @@
+codeunit 50100 "Transfer Request Good"
+{
+    // Self-contained demonstration of the best practice. Not derived from base-app source.
+    procedure RequestFromCompany(TargetCompany: Text[30]; ItemNo: Code[20]; Quantity: Decimal)
+    var
+        TransferRequest: Record "Transfer Request Good";
+        SessionId: Integer;
+    begin
+        TransferRequest.Init();
+        TransferRequest."Item No." := ItemNo;
+        TransferRequest.Quantity := Quantity;
+        // The insert runs inside TargetCompany, so OnInsert and the subscriber read that company's setup.
+        StartSession(SessionId, Codeunit::"Transfer Request Create Good", TargetCompany, TransferRequest);
+    end;
+}
+
+codeunit 50102 "Transfer Request Create Good"
+{
+    TableNo = "Transfer Request Good";
+
+    trigger OnRun()
+    begin
+        // "Entry No." is AutoIncrement, so concurrent background sessions in TargetCompany never race on the same value.
+        Rec.Insert(true);
+    end;
+}
+
+table 50100 "Transfer Request Good"
+{
+    DataClassification = CustomerContent;
+
+    fields
+    {
+        field(1; "Entry No."; Integer) { AutoIncrement = true; }
+        field(2; "Item No."; Code[20]) { }
+        field(3; Quantity; Decimal) { }
+        field(4; "Location Code"; Code[10]) { }
+    }
+
+    keys
+    {
+        key(PK; "Entry No.") { Clustered = true; }
+    }
+
+    trigger OnInsert()
+    var
+        TransferSetup: Record "Transfer Setup Good";
+    begin
+        TransferSetup.Get();
+        "Location Code" := TransferSetup."Default Location Code";
+    end;
+}
+
+table 50101 "Transfer Setup Good"
+{
+    DataClassification = CustomerContent;
+
+    fields
+    {
+        field(1; "Primary Key"; Code[10]) { }
+        field(2; "Default Location Code"; Code[10]) { }
+        field(3; "Open Requests"; Integer) { }
+    }
+
+    keys
+    {
+        key(PK; "Primary Key") { Clustered = true; }
+    }
+}
+
+codeunit 50101 "Transfer Request Count Good"
+{
+    [EventSubscriber(ObjectType::Table, Database::"Transfer Request Good", OnAfterInsertEvent, '', false, false)]
+    local procedure CountOpenRequest(var Rec: Record "Transfer Request Good"; RunTrigger: Boolean)
+    var
+        TransferSetup: Record "Transfer Setup Good";
+    begin
+        // Serializes the read-modify-write so concurrent background sessions don't lose an increment.
+        TransferSetup.LockTable();
+        TransferSetup.Get();
+        TransferSetup."Open Requests" += 1;
+        TransferSetup.Modify();
+    end;
+}