dsh-ui-usage-billing: Usage and Billing Dashboard for DeepSeek Harness

dsh-ui-usage-billing is a DeepSeek Harness plugin maintained by Kenz1117, version 1.0.15, licensed under the MIT protocol, requiring Node 22.19+ or 24.0+. Positioned as a pure UI layer, this plugin does not register tools, inject prompts, or logs, aiming to provide unified cost and usage management for developers working with multiple models and providers. Core features include a sidebar entry and full-screen dashboard, covering six modules: overview, trends, details, statistics, rates, and settings. It aggregates real usage from persistent session logs, estimates costs based on official multi-vendor pricing, supports peak-valley pricing and custom unit rates. The plugin integrates subscription quota recognition and multi-vendor balance queries, supporting mainstream services such as DeepSeek, Kimi, MiniMax, and relay station balances.