✨ File pool policy check

DysonNetwork.Shared/Auth/PerkSubscriptionPrivilege.cs

@@ -0,0 +1,16 @@
+namespace DysonNetwork.Shared.Auth;
+
+public static class PerkSubscriptionPrivilege
+{
+    public static int GetPrivilegeFromIdentifier(string identifier)
+    {
+        // Reference from the DysonNetwork.Pass
+        return identifier switch
+        {
+            "solian.stellar.primary" => 1,
+            "solian.stellar.nova" => 2,
+            "solian.stellar.supernova" => 3,
+            _ => 0
+        };
+    }
+}