Enable users to interact with Ralph Orchestrator via Slack, allowing them to start tasks with prompts, check task status, and receive notifications for user intervention, task updates, or failures.
### Use case As a user of slack, I would like to interact with the ralph-orchestrator through slack. I should be able to: 1. Start a simple task by providing prompt as a slack message or sending prompt as an attachment 2. Check the status 3. ralph-orchestrator should inform me through slack for any user intervention, status of tasks, any failure ### Proposed solution Something similar to ralph-telegram assuming the user has a slack bot listening in socket mode. ### Area CLI ### Backend(s) impacted _No response_ ### Alternatives considered _No response_ ### Additional context _No response_