[FEATURE]: A TUI management interface similar to Neovim Mason. #8292

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Describe the enhancement you want to request

I hope the TUI interface can feature a unified management dashboard, similar to Neovim Mason. It should allow quickly switching between different tabs using number shortcuts. My idea is visually represented in the provided screenshot with annotations.

This interface would display all user configurations, such as installed plugins, skills, agents, and built-in LSPs, providing an excellent user experience. It would be even better if this modal supported responsive design, adapting to both sidebar and popup window styles.

Currently, with OpenCode, it is difficult to automatically invoke user-defined agents and skills; users must explicitly specify them (e.g., "use X"). If we could implement a unified management system that allows the LLM to generate a concise summary (mini-prompt) containing information about available plugins and skills, the OpenCode execution process could quickly perceive what capabilities are available. This would significantly improve response quality and save users time. In Vibe Code, the most time-consuming aspect right now is the repetitive cycle of reviewing and regenerating code.