Clarify locale-safe DateFormula Evaluate inputs

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

microsoft/knowledge/style/dateformula-evaluate-needs-language-independent-literals.good.al

@@ -0,0 +1,18 @@
+codeunit 50101 "Good Review Scheduling"
+{
+    procedure NextReviewDate(Interval: DateFormula; ReferenceDate: Date): Date
+    begin
+        if Format(Interval) = '' then
+            Evaluate(Interval, '<1W>');
+
+        exit(CalcDate(Interval, ReferenceDate));
+    end;
+
+    procedure NextReviewFromUserInput(UserFormulaText: Text; ReferenceDate: Date): Date
+    var
+        Interval: DateFormula;
+    begin
+        Evaluate(Interval, UserFormulaText);
+        exit(NextReviewDate(Interval, ReferenceDate));
+    end;
+}