fix(site-runtime,dcl): low-severity cleanups — observed adapter dispose (S9), alarm-filter overwrite warning (S10), bounded-channel comment (C2), invariant-culture condition fallback (C6)

src/ZB.MOM.WW.ScadaBridge.SiteRuntime/Actors/ScriptActor.cs

@@ -475,7 +475,10 @@ public class ScriptActor : ReceiveActor, IWithTimers
             _scriptName, _instanceName, msg.Success);
     }
 
-    private static bool EvaluateCondition(ConditionalTriggerConfig config, object? value)
+    // internal (not private) so the culture-invariance of the non-numeric fallback
+    // can be unit-tested directly on the test thread — the live path evaluates on a
+    // dispatcher thread whose CurrentCulture the test cannot deterministically set.
+    internal static bool EvaluateCondition(ConditionalTriggerConfig config, object? value)
     {
         if (value == null) return false;
 
@@ -500,7 +503,10 @@ public class ScriptActor : ReceiveActor, IWithTimers
         }
         catch
         {
-            return string.Equals(value.ToString(), config.Threshold.ToString(), StringComparison.Ordinal);
+            // Render the threshold with InvariantCulture to match the invariant numeric
+            // parse two lines up — otherwise a de-DE host renders 1.5 as "1,5" and the
+            // string fallback fires spuriously on locale-formatted values (C6).
+            return string.Equals(value.ToString(), config.Threshold.ToString(CultureInfo.InvariantCulture), StringComparison.Ordinal);
         }
     }