Run RAGSAK (Kotlin), fastapi (Python), zod (TypeScript) with --slice
package --min-structure 0.5, verbose+timeout, results saved for later.
After _count_concat memoization fix: RAGSAK full run 54.9s -> 6.7s,
no tail stalls. RAGSAK: 121 packages (28 with grammar). fastapi/zod
complete in ~25s (dominated by arg-extraction on 2000+ method test
groups, not grammar explosion). Includes SUMMARY.md with before/after.
