Ho11ow8/deepseek-harness-balance-pet: Display DeepSeek account balance next to DSH Web interface

`deepseek-harness-balance-pet` is a web interface plugin for DeepSeek Harness (DSH) designed for Windows 10/11. Its primary function is to generate a "Deepseek-chan" desk pet in the bottom-right corner of the screen, displaying the DeepSeek account balance in real-time (defaulting to a refresh every 20 seconds). It automatically follows the DSH Web browser window and hides itself when switching applications or minimizing the window. The plugin utilizes a local Node.js proxy and a native WPF application architecture. The balance query interface listens exclusively on `127.0.0.1`, ensuring that API keys do not enter the browser and thereby guaranteeing security. Installation requires .NET Framework 4.8 and Node.js 18+.