Bug: isinstance(..., int) allows bool values, bypassing type checks

[shivamsn97]

Generated a GitHub issue detailing locations in the framework where isinstance(..., int) does not explicitly reject boolean values. Boolean (bool) is a subclass of integer (int) in Python, and these instances could crash or behave unexpectedly for improperly parsed JSON payloads. Tested via local execution for demonstration.

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PR created automatically by Jules for task 12421227061258330521 started by @shivamsn97

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