autopilot plan mode handoff

[justschen]

auto handoff to agent after finishing plan mode in autopilot + add implement with autopilto buton

[Copilot]

Pull request overview

This PR adds an Autopilot “handoff” flow in the chat UI so that finishing a plan can automatically continue into the next handoff/implementation step, and it introduces a “Start with Autopilot” button alongside suggested next prompts.

Changes:

• Auto-trigger the first send: true handoff when the current permission level is Autopilot.
• Extend next-prompt selection events to optionally request starting in Autopilot, and add a “Start with Autopilot” suggested-prompt button.
• Tighten a few monaco.editor.EditorOptions types in src/vs/monaco.d.ts.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
src/vs/workbench/contrib/chat/browser/widget/chatWidget.ts	Auto-handoff into the first auto-send handoff in Autopilot mode; plumbs withAutopilot through next-prompt selection.
src/vs/workbench/contrib/chat/browser/widget/chatContentParts/chatSuggestNextWidget.ts	Adds config-gated “Start with Autopilot” UI button and extends selection payload with withAutopilot.
src/vs/monaco.d.ts	Refines editor option typings (notably placeholder).

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