Apply code style formatting and restore partial modifiers on Avalonia views

Linter/formatter pass across the full codebase. Restores required partial
keyword on AXAML code-behind classes that the formatter incorrectly removed.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

tests/ZB.MOM.WW.LmxOpcUa.Client.CLI.Tests/NodeIdParserTests.cs

@@ -84,4 +84,4 @@ public class NodeIdParserTests
         result.ShouldNotBeNull();
         result.Identifier.ShouldBe("TestNode");
     }
-}
+}