- Rename phase_time to step_time for consistency with Step enum - Unify blob_size and file_size into single blob_size field - Merge toastyfs_alloc into toastyfs_init, returning malloced ToastyFS* - Replace (MessageHeader*)&msg casts with &msg.base - Replace !resp.size with explicit resp.size == 0 https://claude.ai/code/session_018MRQTdAZoBCXJZgdP4U6V6