[codex] fix setup preview record distribution

[KevinBigham]

Summary

• Replaces absolute Day One roster-grade projected-win math with a deterministic league-rank curve centered on 81 wins per team.
• Keeps setup preview records zero-sum across the 32-team league so team selection no longer shows nearly every club around 97-65.
• Adds sim-core and worker API regression coverage for 162-game formatting, realistic spread, and league-total projected wins.

Root Cause

The old Day One org review formula calculated projected wins as 64 + raw roster-grade components, so ordinary generated MLB ratings pushed almost every team into the high-90s before clamping.

Save / Schema Safety

• CURRENT_GAME_SNAPSHOT_VERSION remains v33.
• No contracts changes.
• No save migration required; setup previews are generated fresh from seeded roster inputs.

Verification

• cd packages/sim-core && node ./node_modules/typescript/bin/tsc --noEmit
• cd packages/sim-core && node ./node_modules/vitest/vitest.mjs run — 1609/1609
• cd apps/web && node ./node_modules/typescript/bin/tsc --noEmit
• cd apps/web && node ./node_modules/vitest/vitest.mjs run src/workers/sim.worker.test.ts — 102/102
• cd apps/web && node ./node_modules/vite/bin/vite.js build
• cd apps/web && node ./node_modules/vitest/vitest.mjs run src/build/bundleBudget.test.ts
• git diff --check