Initial Brisk Unity SDK project

Assets/BriskSdk/Runtime/Core/BriskVersionComparer.cs

@@ -0,0 +1,32 @@
+using System;
+
+internal static class BriskVersionComparer
+{
+    public static bool IsLessThan(string currentVersion, string minVersion)
+    {
+        if (string.IsNullOrWhiteSpace(currentVersion) || string.IsNullOrWhiteSpace(minVersion))
+        {
+            return false;
+        }
+
+        if (!Version.TryParse(Normalize(currentVersion), out var current))
+        {
+            return false;
+        }
+
+        if (!Version.TryParse(Normalize(minVersion), out var minimum))
+        {
+            return false;
+        }
+
+        return current < minimum;
+    }
+
+    private static string Normalize(string version)
+    {
+        var normalized = version.Trim();
+        return normalized.StartsWith("v", StringComparison.OrdinalIgnoreCase)
+            ? normalized.Substring(1)
+            : normalized;
+    }
+}