~anthropic/claude-sonnet-latest → B (6:4)

Side B fixes a real bug (the /-/ external garden index was always empty due to a bogus parent URL), refactors the resolver module more cleanly with structured card data and rich rendering, and adds meaningful test coverage plus CSS layout support. Side A adds a genuinely useful feature (Reddit OAuth linking, UUID-canonical identity) but is comparably scoped and mostly additive plumbing without fixing an existing defect, making B's fix-plus-feature combination slightly more impactful.