DeepSeek Harness HarmonyOS Emulator Plugin

The `dsh-better-sidebar` plugin for DeepSeek Harness provides a sidebar tab with integrated HarmonyOS emulator management. It allows users to launch the emulator, build, and deploy HarmonyOS applications directly in the DSH environment, with multi-entry detection and real-time feedback. It provides six dedicated AI tools for emulator control, deployment, log viewing, and documentation retrieval. Installation requires Node.js, pnpm, DSH, and DevEco, and supports Windows, macOS, and Linux (with a desktop environment). This plugin significantly improves developer efficiency when developing HarmonyOS applications in Harness.