@javierni/balance-show: DeepSeek Harness Balance and Usage Monitoring

`@javierni/balance-show` is a zero-dependency plugin developed for the DeepSeek Harness (DSH) Web GUI, designed to monitor account balances and conversation costs in real time. It runs entirely locally, reads the user-configured API Key to query the balance, and is not affiliated with the official team. Its core features include a floating balance window with color-coded alerts, an interaction design with position memory and avoidance, and detailed Token statistics and cost breakdowns for the current conversation. Installation requires enabling the hoisted nodeLinker in the profile configuration and exempting specific packages from release gates, while billing is locally estimated and requires manual synchronization of the price list.