chore: initial git load of code space

src/Strata.SqlTools.Rules/Rule/Expression/NumberLiteral.cs

@@ -0,0 +1,19 @@
+namespace Strata.SqlTools.Rules.Rule.Expression;
+
+/// <summary>
+/// Represents a numeric literal value in a rule expression.
+/// </summary>
+public class NumberLiteral : Literal<decimal>
+{
+    /// <summary>
+    /// Initializes a new instance of the <see cref="  NumberLiteral"/> class.
+    /// </summary>
+    /// <param name="value">The numeric value.</param>
+    public NumberLiteral(decimal value) : base(value) { }
+
+    /// <summary>
+    /// Implicitly converts a <see cref="  NumberLiteral"/> to a decimal value.
+    /// </summary>
+    /// <param name="numberExp">The number expression to convert.</param>
+    public static implicit operator decimal(NumberLiteral numberExp) => numberExp.Value;
+}