The tooltip and shared type still described the pre-#78 scheme (peak at
list price, off at half), while models.dev lists DeepSeek's off-peak
rates and the estimator doubles the peak bucket. Correct the wording in
both locales, the cost type, and the READMEs; only DeepSeek's peak
buckets double, every other provider prices at list.
Express the peak clock in Beijing Time directly (Monday-Friday
09:00-12:00 and 14:00-18:00, weekends off-peak) and rename isPeakUtc to
isBeijingPeak. The UTC-to-Beijing refactor is behavior-preserving, so no
stateVersion bump is needed. Statutory holidays are deliberately not
modeled; record that limitation in docs/compatibility.md.
Refs #178
bowenliang123
229f7b15ac
