Add support for [OpenCode](https://opencode.ai/) as a coding agent in open-pstack, allowing users to use OpenCode through the same workflows and interfaces as the existing supported agents. The integration should detect the opencode CLI, provide the necessary configuration and invocation logic, handle missing installations with a clear error, preserve existing integrations, and include basic documentation and tests for the new support.
Add support for [OpenCode](https://opencode.ai/) as a coding agent in
open-pstack, allowing users to use OpenCode through the same workflows and interfaces as the existing supported agents. The integration should detect theopencodeCLI, provide the necessary configuration and invocation logic, handle missing installations with a clear error, preserve existing integrations, and include basic documentation and tests for the new support.