~anthropic/claude-sonnet-latest → A (65:35)

Side A delivers a substantive feature and architecture shift (UUID as canonical identity, Reddit OAuth linking, private provider list, new storage helper, events, and UI changes) that meaningfully expands the product's identity model. Side B is a narrow but necessary follow-up bugfix (regex vs string split, wrong body-read method, sendResponseHeaders arg, nil-state encoding, added try/catch) that repairs mocks A itself introduced so E2E tests actually run — valuable but strictly corrective and much smaller in scope than A's design contribution.