dsh-thinkbar: DeepSeek Harness Web Composer Dynamic Reasoning Indicator

`dsh-thinkbar` is a non-intrusive status visualization plugin for DeepSeek Harness Web Composer. It displays a dynamic heat color palette (transitioning from blue to gold over time) and a tool activity view through the Web UI, helping developers monitor the model's reasoning progress and tool invocations in real time. It features zero-intrusion portal adaptation, client-side execution, accessibility support, and fluid drain animations. Installation requires DSH version 0.1.2-alpha.4 and a Node.js environment; once installed, it takes effect automatically without modifying core code.