PRICES must stay a generated static table (core is client-safe; the
renderer folds costs and reading the catalog JSON needs fs), so the
forgetting-the-sync failure mode is guarded instead of eliminated.
- sync-pricing.ts: buildPrices() extracted (the pure catalog walk),
exported for the test; main() now guarded by an entry-point check so
importing the module runs nothing
- tests/prices-sync.test.ts: asserts PRICES equals EXACTLY what the
script would generate now — unpriced new models, drifted prices, and
keys gone from the catalog all fail with 'run npx tsx
scripts/sync-pricing.ts'. Verified it fires by deleting the
deepseek-v4.1-flash entry (1 unpriced, actionable message)
- sync script's embedded header template corrected to match prices.ts
(no bare-slug legacy claim) + drift-guard note, so the next
regeneration keeps the honest docs
