Replace per-row controlClassName widths with a size enum (text /
select-wide / select / code / none) on SettingsRow. Text-entry fields
(name, slug, description, context, bio) now share the text tier so
their control edges align within a card; deliberately-short fields
(issue prefix) keep a clearly smaller tier.
MUL-4428
Co-authored-by: Lambda <lambda@multica.ai>
Co-authored-by: multica-agent <github@multica.ai>