- accounts.ex: replace if with with-chain in get_user_by_email_and_password
for explicit pattern matching on User struct + valid_password? result.
Collapse nested case into with in create_api_token.
- map_live.ex: extract connected? PubSub subscription block from mount into
named subscribe_if_connected/1 function (cleaner than inline if with _ =).
Deduplicate identical select_time + set_selected_time handlers into shared
handle_set_time/2 helper. Extract toggle_grid + toggle_radar into shared
handle_toggle/3 helper (functions-as-values pattern for assign key).