dsh-plugin-whale-fenggu: Monitor DeepSeek Peak-Valley Pricing Periods in DSH

# Preface Starting from August 17, 2026, DeepSeek's official V4 pricing follows Beijing time peak and valley rates: expensive during peaks, cheap during valleys. The boundaries at 09:00, 12:00, 14:00, and 18:00 are easy to remember, but the hard part is forgetting to check the time while a long task is running—running heavy work right into peak hours means higher token costs. Keeping track of the time yourself is one way; a more worry-free approach is to let a resident component keep watch for you and alert you before the switch. The dsh-plugin-whale-fenggu introduced in this article is just such a plugin. DSH's philosophy is "everything is a plugin," and these kinds of utility tools fit the plugin system perfectly. # What is it dsh-plugin-whale-fenggu (Blue Whale · DeepSeek Peak