feat(BootstrapInput): BootstrapInput Bind non-nullable TValue int, float, double, decimal Setting Default Value to Zero When Null

[mrtonyguo]

Is there an existing issue for this?

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Is your feature request related to a problem? Please describe the problem.

复现步骤：

1. 附件最小Demo，打开Home.razor页面， Demo里测试绑定的泛型数据为 不可为Null的decimal， 在BootstrapInput框里输入 数字 300，然后全选中数字，执行一次性删除，在下面div标签里能看到绑定的decimal值还是300；
   
   

Steps:

1. Open the Home.razor page with the min demo in the attachment. The data bind-value for evaluation in the demo is a non-nullable decimal.
2. Enter the number 300 in the BootstrapInput Components, then select all the numbers and perform a one-time deletion.
3. You can see that the bound decimal value is still 300 in the div tag below;

Describe the solution you'd like

1. 附件请查收Demo

2. 经查阅源代码，是否可以在ValidateBase.cs绑定的泛型CurrentValueAsString里新增对于不可为Null的数字类型进行判断，如果为空值则等于对应类型的默认值，添加如下代码，经测试可行，烦请审阅：
   

else if (typeof(TValue).IsValueType && Nullable.GetUnderlyingType(typeof(TValue)) == null && string.IsNullOrEmpty(value)) { // Non-nullable value type (e.g., int, double, etc.) PreviousParsingAttemptFailed = false; CurrentValue = default!; }
BootstrapBlazor.Net8.zip

Additional context

No response

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