Fuzzing Scope: https://docs.google.com/document/d/1qhhumPEoVjeh2VsjU7uDAdJpuYxdR8P0lB6auYVGPaw/edit?tab=t.0
Fuzz testing strategy details are here: https://docs.google.com/document/d/1QcceHsGgUE4NKDOhXkZ8BK6sRqqXfYWIHMedxpTp7v4/edit?tab=t.0#heading=h.sz5oyif04w8s
Fuzz Test prototype is in https://github.com/10gen/mongo/pull/63660

The fuzzing strategy includes:

• Valid BSON input domain using `fuzztest::Arbitrary<ConstSharedBuffer>()`
• Mutation of the input with {insert random bytes, overwrite at offset}
• A subset of BSONElement or BSONObj method calls

Tasks
Refactor code to be more readable.
Integrate with Code Coverage flags.
Investigate Results.