Limited digits for pet id

[nus-se-script]

While it is common to have pet id with more than 4 digits because pet ids can generated in this way: eg. first 2 digits represents XX, next 3 digits represents YY. It is common for any animal shelter to have their pet ids with more than 4 digits

Enforcing a 4-digit pet id kind of forces the users to change the original way they store their pet ids (maybe they store in 10 digits at first).

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_{[original: nus-cs2103-AY2324S1/pe-interim#3454] [original labels: type.FeatureFlaw severity.Medium]}

[Blizzeracz]

Team's Response

We do agree that there is limited digits for pet ID, but severity should be low since it is unlikely for animal shelters to accommodate more than 10000 animals. Since this is also something we might consider expanding on in the future, we decided to go with NotInScope.

Duplicate status (if any):

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