feat(community/agents): add AL agent quality guidance

- add 20 agent knowledge rules with good and bad AL samples
- clarify setup dialog shape, temporary persistence, permissions, profiles, instructions, capability registration, and interface wiring
- add the community-owned AL agents review skill
- make review fixture discovery layer-aware with custom, community, and Microsoft precedence
- document layer-aware evaluation behavior

community/knowledge/agents/get-default-profile-lives-in-the-app.good.al

@@ -0,0 +1,20 @@
+profile "SALES REVIEW AGENT"
+{
+    Caption = 'Sales Review Agent';
+    Description = 'UI surface for the Sales Review Agent.';
+    RoleCenter = "Order Processor Role Center";
+    Customizations = "Sales Review Agent Sales Ord.";
+}
+
+codeunit 50100 "Sales Review Agent Factory"
+{
+    procedure GetDefaultProfile(var TempAllProfile: Record "All Profile" temporary)
+    var
+        Agent: Codeunit Agent;
+        CurrentModuleInfo: ModuleInfo;
+        DefaultProfileTok: Label 'SALES REVIEW AGENT', Locked = true;
+    begin
+        NavApp.GetCurrentModuleInfo(CurrentModuleInfo);
+        Agent.PopulateDefaultProfile(DefaultProfileTok, CurrentModuleInfo.Id, TempAllProfile);
+    end;
+}