fix(uns): omit blank optional keys from TagConfig + add omission tests; drop unused ParseInt (T4-T8 review)

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Shared/Uns/TagEditors/AbCipTagConfigEditor.razor

@@ -28,8 +28,6 @@
         _m = AbCipTagConfigModel.FromJson(ConfigJson);
     }
 
-    private static int ParseInt(object? v, int fallback = 0) => int.TryParse(v?.ToString(), out var i) ? i : fallback;
-
     // TryParse so a bad/empty change value can never throw into the Blazor circuit — it falls back.
     private static TEnum ParseEnum<TEnum>(object? v, TEnum fallback) where TEnum : struct, Enum
         => Enum.TryParse<TEnum>(v?.ToString(), out var r) ? r : fallback;

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Shared/Uns/TagEditors/AbLegacyTagConfigEditor.razor

@@ -28,8 +28,6 @@
         _m = AbLegacyTagConfigModel.FromJson(ConfigJson);
     }
 
-    private static int ParseInt(object? v, int fallback = 0) => int.TryParse(v?.ToString(), out var i) ? i : fallback;
-
     // TryParse so a bad/empty change value can never throw into the Blazor circuit — it falls back.
     private static TEnum ParseEnum<TEnum>(object? v, TEnum fallback) where TEnum : struct, Enum
         => Enum.TryParse<TEnum>(v?.ToString(), out var r) ? r : fallback;

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Shared/Uns/TagEditors/FocasTagConfigEditor.razor

@@ -28,8 +28,6 @@
         _m = FocasTagConfigModel.FromJson(ConfigJson);
     }
 
-    private static int ParseInt(object? v, int fallback = 0) => int.TryParse(v?.ToString(), out var i) ? i : fallback;
-
     // TryParse so a bad/empty change value can never throw into the Blazor circuit — it falls back.
     private static TEnum ParseEnum<TEnum>(object? v, TEnum fallback) where TEnum : struct, Enum
         => Enum.TryParse<TEnum>(v?.ToString(), out var r) ? r : fallback;

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Shared/Uns/TagEditors/TwinCATTagConfigEditor.razor

@@ -28,8 +28,6 @@
         _m = TwinCATTagConfigModel.FromJson(ConfigJson);
     }
 
-    private static int ParseInt(object? v, int fallback = 0) => int.TryParse(v?.ToString(), out var i) ? i : fallback;
-
     // TryParse so a bad/empty change value can never throw into the Blazor circuit — it falls back.
     private static TEnum ParseEnum<TEnum>(object? v, TEnum fallback) where TEnum : struct, Enum
         => Enum.TryParse<TEnum>(v?.ToString(), out var r) ? r : fallback;