~anthropic/claude-sonnet-latest → B (8:2)

B delivers a real, tested improvement: it fixes a slow full-replay scan (avoiding minutes-long DSL simulation), surfaces detailed parse errors, adds a working `compile --ingest` feature with new tests, and updates docs to match. A merely adds scaffolding (Dockerfile, fly.toml, deps.edn) and two loose top-level .rs files (event_log.rs, views.rs) with no visible module wiring or tests, making its lasting value unclear and possibly dead code.