dsh-prompt-manager: A Local Prompt Library for DeepSeek Harness Web

`dsh-prompt-manager` is a local bilingual prompt management plugin developed specifically for DeepSeek Harness Web (DSH), designed to address the inconvenience of reusing prompts across sessions and the pain point of repetitive input. This plugin allows users to centrally create, edit, and search frequently used prompts in the settings, supporting favorites and sorting by usage frequency. In the chat interface, users can quickly search and select multiple prompts via the `/prompt` command or the toolbar button, which are then injected into the current session as system instructions, and newly created branch sessions automatically inherit the prompt collection from the ancestor session. The plugin features JSON backup import/export functionality, supporting data merging or replacement. Data is stored solely in the local browser's localStorage and local mirror files, ensuring privacy and security without any network upload. Installation supports npm.