Add OpenCode as a supported agent for docker sandbox

[joaomcarlos]

Description

Problem

Docker Sandboxes currently document support for several agents (Claude, Grok, Anthropic models, etc.) but OpenCode is not listed as a supported agent.

Expected Behavior

As an open-source AI coding agent, OpenCode should be included in the list of supported agents for docker sandbox workflows. This would enable developers using OpenCode to leverage Docker Sandboxes for isolated code execution.

Use Case

OpenCode users want to run code generation, testing, and other development workflows within sandboxed Docker environments, similar to what's available for other AI agents. Adding OpenCode support would make Docker Sandboxes a more universal tool for AI-assisted development.

Current Situation

The Docker Sandboxes documentation at https://docs.docker.com/ai/sandboxes/workflows/ lists supported agents but OpenCode is missing from this list.

Suggested Solution

Add OpenCode to the officially supported agents for Docker Sandboxes and provide documentation/templates for integrating OpenCode with sandboxed workflows.

[vvoland]

Thanks for the reportt, I'm closing this in favor of the previous ticket.