Option to use name-first directory format (e.g. redis-2025-04-16) for better tab completion

[Andrew-Girgis]

Currently try creates directories like 2025-04-16-redis-experiment, which makes terminal navigation painful — tab completion is useless since all directories share the same date prefix.

A name-first format like redis-experiment-2025-04-16 would let users cd src/tries/red<TAB> and get instant completion without needing ls or remembering exact names.

Proposal: Add a config option (e.g. TRY_NAME_FIRST=1 or a flag) to use name-date ordering instead of date-name.