Notify Users about Invalid Forward Headers

[Jjx003]

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• I have searched the EvaDB issues and found no similar feature requests.

Description

As many issues have pointed out earlier (#1315, #1217, #1206, #1150), the forward header causes a lot of issues for users.
In this particular request, I am asking for a mechanism to detect faulty forward headers so that users can fix the problems quickly and not have to dig into all the wrong areas of code.

I think some ideas for requirements should be:

1. Notify users if the signature is missing. Right now, the error says "Cannot infer io signature from the decorator..."
2. Notify users if the signature is malformed (e.g. missing column names, types, or shapes)

Use case

No response

Are you willing to submit a PR?

• Yes I'd like to help by submitting a PR!

[github-actions]

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[hershd23]

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