Any difference between decodecorpus_files and fuzz_decodecorpus?

I'm looking to fuzz the library more and use the fuzzer to compare the output to the reference C implementation. I've been wondering, what's the difference between the two directories with inputs - decodecorpus_files and fuzz_decodecorpus?

Also, you can make cargo-fuzz automatically pick up the fuzzing corpus without requiring to explicitly specify a path if you move it to `fuzz/corpus/fuzz_target_1`, similar to `artifacts` folder.

Start by comparing the decodecorpus_files and fuzz_decodecorpus directories and checking how the cargo-fuzz target currently discovers inputs, including the existing artifacts folder. Done means documenting or resolving the directory distinction and determining whether the corpus belongs under fuzz/corpus/fuzz_target_1 for automatic discovery.

Written by the indexing model from the issue text.