7f49d034ae
The range-decrypt test filled max_argon_memory_mib by building a whole DecryptOptions::default() and reading one field out of it, which runs thread and memory detection just to extract a u32. The library already exports default_argon_decrypt_cap_mib(), which is the value that default actually uses and says what is meant - call it directly. Test-only change. Test plan: cargo test --test library_api passes both tests.