[FEATURE]: Add Run/Debug button + visualize background processes in Desktop, support multi-config & process management

[bigkun]

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Describe the enhancement you want to request

OpenCode Desktop works really well, but there are two pain points with running/debugging: first, we can’t run/debug scripts directly in the desktop app and have to switch to terminal/IDE; second, subagent can run programs in the background, but the desktop app shows nothing about these background processes and we can’t manage them.
It would be great to optimize this with features inspired by IDEA/VS Code’s run/debug workflows:

1. Core: Add a Run/Debug button for script configuration and management
   • Support adding, editing, deleting multiple run configurations (different scripts/commands/arguments)
   • Allow configuring runtime arguments, working directory, environment variables, etc.
   • Show clear runtime status (running/success/failed) with real-time log output
   • One-click start/stop/restart for Run/Debug tasks
2. Additional: Visualize and manage background processes
   • Display all background programs started by subagent (status, PID, start time, running script)
   • Support manual stop/restart of background processes
   • Add filter/search for background processes to manage multiple tasks easily

This way we can code, run/debug, and manage background processes all in OpenCode Desktop without switching tools—making the workflow much smoother.

[github-actions]

This issue might be a duplicate of existing issues. Please check:

• [FEATURE]: Background Tasks Manager #9714: Background Tasks Manager — proposes a full task manager with lifecycle operations, UI components, and LLM tooling to manage background processes (very similar to the 'Visualize and manage background processes' part of this request)
• [FEATURE]: Better active/background terminal and bash management #6375: Better active/background terminal and bash management — proposes moving long-running processes to the background with TUI access and agent tools to manage them

Please review these issues to see if your request is already covered or if it adds meaningfully distinct scope.

[bigkun]

This issue might be a duplicate of existing issues. Please check:

• [FEATURE]: Background Tasks Manager #9714: Background Tasks Manager — proposes a full task manager with lifecycle operations, UI components, and LLM tooling to manage background processes (very similar to the 'Visualize and manage background processes' part of this request)
• [FEATURE]: Better active/background terminal and bash management #6375: Better active/background terminal and bash management — proposes moving long-running processes to the background with TUI access and agent tools to manage them

Please review these issues to see if your request is already covered or if it adds meaningfully distinct scope.

I’ve checked #9714 and #6375. They focus on background task management, while this issue is about a full Run/Debug configuration system with multiple configs, parameter settings, and integrated process visualization — it’s a distinct and broader feature.