$ node --test packages/game-data/tests/ledger-tools.test.mjs
# cwd /Users/king/Desktop/Workspace/SRO/zoen
# exit 0

TAP version 13
# Subtest: cost estimate uses the pricing table (Opus 5.5 list prices)
ok 1 - cost estimate uses the pricing table (Opus 5.5 list prices)
  ---
  duration_ms: 0.424583
  type: 'test'
  ...
# Subtest: time: wall clock includes stoppages, active counts only short gaps
ok 2 - time: wall clock includes stoppages, active counts only short gaps
  ---
  duration_ms: 0.625166
  type: 'test'
  ...
# Subtest: codex ledger reads only zoen/ sessions, dedupes usage records and counts image calls
ok 3 - codex ledger reads only zoen/ sessions, dedupes usage records and counts image calls
  ---
  duration_ms: 30.260375
  type: 'test'
  ...
1..3
# tests 3
# suites 0
# pass 3
# fail 0
# cancelled 0
# skipped 0
# todo 0
# duration_ms 68.6175