~x-ai/grok-latest → A (5:1)

A replaces the CanonicalItemUrl string newtype with a structural ItemId enum (Root/Local/Web/Opaque), splits wire normalization into item_wire, and migrates reducer maps, ranking, RPC, HTML routing, and tests onto typed identity—core lasting design. B mainly seeds deploy scaffolding (Dockerfile, fly.toml), Clojure deps.edn, and small standalone event_log/views modules, which help bootstrap ops but do not reshape the domain model.