Split tools/ways-cli/src/main.rs (649 lines) into cli.rs + dispatch.rs

[aaronsb]

Context

Follow-up split off from #51 (which covered tools/attend/src/main.rs, now resolved). tools/ways-cli/src/main.rs has grown past the 500-line review threshold — 649 lines as of 2026-06 — following the same dispatcher-file anti-pattern that the attend split addressed, just at smaller scale.

Proposed shape

Mirror the attend cmd/* split that proved the pattern (PR #78/#79):

• Extract the clap Commands enum into cli.rs
• Extract the match dispatch into dispatch.rs
• Leave main.rs as fn main() + panic-handling/setup only

Priority

Not urgent — it's an order of magnitude smaller than the attend case was, and the structure is healthy apart from size. Good candidate to roll into whatever PR next touches ways-cli command dispatch, or a standalone refactor when convenient.

References

• Original addendum: attend: split tools/attend/src/main.rs (2027 lines) into cmd/* modules #51 (closed)
• Pattern precedent: PR Split oversize attend / attend-chat modules per code-review threshold #78/refactor: split oversize attend / attend-chat modules (#78) #79 (attend module split)