Tasks: CLI pause command #1263

Repo: coder/coder

Scope: Add coder tasks pause command.

Changes:

• Add pause subcommand to task command group in cli/task.go
• Call pause endpoint, wait for build completion (consistent with coder stop)
• Show build progress via cliui.WorkspaceBuild()
• Final message: "The {task} task has been paused."

Files:

• cli/task.go
• cli/task_test.go

Acceptance criteria:

• coder tasks pause my-task pauses the task
• Build progress displayed during pause
• Success message on completion
• Error handling for invalid states (already paused, etc.)
• Help text documents the command

Dependencies:

• Tasks: Manual pause endpoint #1261

References:

• PRD: Start/Pause/Resume the Task Workspace
• RFC: Tasks: Start/Pause/Resume Lifecycle: CLI