Grok Build introduces /goal command

This update represents a significant shift from conversational AI coding assistants to autonomous software engineering agents that can operate independently in the background. Shifting developer interaction from line-by-line coding to goal-oriented task delegation increases development speed and reduces context-switching costs. Providing subcommands for pause, resume, and status checks resolves a common pain point in autonomous tools by giving developers control and visibility during long-running tasks. Ultimately, the utility of this feature will depend on the robustness of its self-verification loops and how gracefully the system handles planning failures or ambiguous requirements.