Make event value registration check more lenient

[UnderscoreTud]

Problem

When registering an event value, the registry doesn't take into account any special validation when checking if the event value is already registered. This falsely claims two event values with different validation as the same

Solution

Include the input/event validation in the registration check

Testing Completed

Supporting Information

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Completes: none
Related: none
AI assistance: none

[APickledWalrus]

Couple thoughts on the list changes (moving in a good direction so far).

Also, is there a reason for the pure contracts? As in, is there a reason to prevent impure implementations?

[UnderscoreTud]

Also, is there a reason for the pure contracts? As in, is there a reason to prevent impure implementations?

Helps the IDE make accurate analysis on the code. And there is no reason to prevent impure implementations because it's a sealed interface so we have full control over its logic

[APickledWalrus]

good work