Redesign Command Center shortcuts and router

[awtprod]

What changed

• Add persistent Command, Capture, All Spaces, and Space shortcuts above the Command Center agent.
• Add inline Idea/Task capture into the selected Space.
• Simplify the composer to model selection and Send, defaulting to gpt-5.6-terra with high reasoning.
• Preserve provider/model route selection across follow-up turns.
• Add top-level router guidance to confirm mutations, present meaningful choices, and ask coding users to choose an isolated worktree or shared workspace.

Why

The Command Center home screen should be an attention-oriented router: users can jump directly to the Space or capture action they need, while the main agent coordinates work instead of acting as an implicit worker.

Validation

• Web focused tests: 19 passed.
• Server focused tests: 23 passed.
• Web and server typechecks passed.
• Formatting and diff checks passed.

The distributed OpenClaw-to-local worker enrollment protocol is intentionally left for a follow-up infrastructure change.

[github-actions]

Thread transfer impact

⚠️ The latest CI run did not produce a thread transfer result for dc7eab5.

This comment will update automatically after the next completed run.