dsh-subagent-pro: DSH Subagent Monitoring and Role Routing Plugin

# Introduction. After delegating tasks to subagents in DSH, two common issues often arise: First, subagents run in the background, making it impossible to track their start time, end time, or current progress within the main session. Second, for standardized tasks like code review and translation, which require a specific model and prompt set, users must manually construct the prompt for every delegation. Existing community plugins each address only half the problem: `dsh-subagent-monitor` provides a real-time monitoring dashboard but lacks role assignment and routing capabilities, while `dsh-plugin-subagent-director` handles delegation but restricts role configuration to settings. The `dsh-subagent-pro` introduced in this article merges these two functionalities into a single plugin and adds support for Claude.