Merge branch 'fix/archreview-crit2-vt-timeout'

src/Core/ZB.MOM.WW.OtOpcUa.Commons/Engines/IScriptCacheOwner.cs

@@ -0,0 +1,20 @@
+namespace ZB.MOM.WW.OtOpcUa.Commons.Engines;
+
+/// <summary>
+///     Optional capability an <see cref="IVirtualTagEvaluator"/> may implement when it caches
+///     compiled scripts and needs an apply-boundary drop. The production
+///     <c>RoslynVirtualTagEvaluator</c> caches one collectible
+///     <see cref="System.Runtime.Loader.AssemblyLoadContext"/> per compiled expression; without a
+///     drop on each config-apply generation those ALCs accrete forever across script edits (every
+///     republish roots a new one). <c>VirtualTagHostActor</c> casts its injected evaluator to this
+///     interface and calls <see cref="ClearCompiledScripts"/> at each apply so stale ALCs are
+///     reclaimed — mirroring how <c>ScriptedAlarmEngine</c> clears its compile cache per generation.
+///     Evaluators with no cache (e.g. <see cref="NullVirtualTagEvaluator"/>) simply don't implement
+///     it, and the host actor's null-conditional cast makes the call a no-op.
+/// </summary>
+public interface IScriptCacheOwner
+{
+    /// <summary>Drops every cached compiled script, disposing each so its collectible
+    /// AssemblyLoadContext unloads. Called at each config-apply generation boundary.</summary>
+    void ClearCompiledScripts();
+}