dsh-balance-quota: Balance, Quota, and Model Health Monitoring Plugin

`dsh-balance-quota` is a model inference visualization plugin for DeepSeek Harness Web, designed to provide unified management of balance and health status across multiple API providers. Integrated below the chat interface, it supports official presets, custom HTTP endpoints, and JSON data extraction, and can monitor model availability, response time, and error rates. It offers flexible configuration options, including currency handling, status value mapping, full-model preview, and security mechanisms. The plugin must be installed via the DSH CLI, is released under the MIT License, and is suitable for developers who need to efficiently monitor the operational status of multiple models.