Allow one time binding input

[Harpush]

Which @angular/* package(s) are relevant/related to the feature request?

core

Description

We now have two options:

1. Attribute - no change watching but no binding too. Limited to only compile time strings.
2. Input - signal based and can change over time.

What's missing is the in between. A way to pass an input but without change watching.

The idea came from inputs I can't or don't want to handle when they change. Currently using ngOnChanges first change check I throw an error if it gets changed after first time.

Proposed solution

A way to declare on time input. Something like:
a = input.oneTime<string>() and will be just a string. If changed after first time will throw an error.
It will also make performance better (I think?) as no need for signal or tracking.

Alternatives considered

Check in ngOnChanges for first change and throw error. With signal inputs it's tougher as ngOnChanges is discouraged.

[pkozlowski-opensource]

Related to #14033 where we would, probably, also need the binding side of it (the reasoning being that one-value inputs should only be bound with either a static value or a one-time binding).