stabilizaiton work - projects rework for maintenanceability and ui livening

src/__Libraries/StellaOps.Cryptography.Plugin.PqSoft/PqSoftCryptoProvider.Gate.cs

@@ -0,0 +1,26 @@
+using System;
+
+namespace StellaOps.Cryptography.Plugin.PqSoft;
+
+public sealed partial class PqSoftCryptoProvider
+{
+    private bool GateEnabled()
+    {
+        if (!_options.RequireEnvironmentGate)
+        {
+            return true;
+        }
+
+        var value = Environment.GetEnvironmentVariable(EnvGate);
+        return string.Equals(value, "1", StringComparison.OrdinalIgnoreCase) ||
+               string.Equals(value, "true", StringComparison.OrdinalIgnoreCase);
+    }
+
+    private void EnsureAllowed()
+    {
+        if (!GateEnabled())
+        {
+            throw new InvalidOperationException($"Provider '{Name}' is disabled. Set {EnvGate}=1 or disable RequireEnvironmentGate to enable.");
+        }
+    }
+}