dsh-pwsh-progress: DSH Conversation Flow Real-Time Task Progress Plugin

DeepSeek Harness (DSH) introduces a real-time task progress plugin for conversational flows, designed to address the issue of manual querying for background task monitoring. Maintained by sssueason, the plugin automatically renders task status, elapsed time, progress bars (in N/M or % format), ETA remaining time, and provides a one-click stop feature. The installation command is `dsh plugin --profile web add "github:sssueason/dsh-pwsh-progress#main"`; restart `dsh web` for it to take effect. The plugin supports multiple tools, including PowerShell and Bash, and tracks tasks via non-consuming `jobs.get`, ensuring real-time feedback while avoiding blocking the model output stream. It is suitable for data migration.