chore: add builtin observability support

[mayurkale22]

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Fixes #<issue_number_goes_here> ☕️

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[ath-08]

I think we should add atleast a few basic test cases to verify metrics accuracy. That way any unintentional changes won't break the metrics values.

[mayurkale22]

I think we should add atleast a few basic test cases to verify metrics accuracy. That way any unintentional changes won't break the metrics values.

Done, PTAL