hiro-nikaitou/dsh-ocg-billing: Adding OpenCode Go Billing Layer for DeepSeek Harness

This article introduces the DSH community plugin `hiro-nikaitou/dsh-ocg-billing`, designed to address the billing calculation and display requirements for OpenCodeGo within DeepSeek Harness (DSH). Licensed under the MIT license and independent of the official implementation, this plugin allows users to display a persistent billing row below the DSH web composer and perform real-time estimation based on a cached official price list. Its core features include billing calculation on a global or single-session basis, active checks for price cache updates, and intelligent bill analysis using the default model. Installation requires adding the plugin path via the `dsh plugin` command or configuring an overlay in `config.yaml`, followed by restarting `dsh web`.