dsh-team-cost: DeepSeek Harness Team Cost Manager

`dsh-team-cost` is a team collaboration plugin for DeepSeek Harness (DSH), designed to address cost measurement and control when multiple users share a host. It features comprehensive token monitoring, member workspace attribution, pricing based on DeepSeek's pricing table, budget configuration, and overspend blocking. Users can define member budgets and custom prices through a configuration file and export cost data using the built-in reporting tools. The tool ensures secure local data storage and is suitable for teams that require granular cost management and alerts.