feat(control): the project screen asks its question with fewer things

[catomean]

Follow-on to #483. That gave the phone one pane per screen; this reduces what the remaining pane puts in front of you.

Measured on the live detail screen at 390px before touching it: 1088px tall, 114 words, 22 controls — and six different ways to start the same action: type + Send, tap "Suggested next", tap "Next best →", tap a history chip, open Prompt library, open "More". Six entry points to one job, with nothing saying which is normal.

Two changes, both removing duplication rather than hiding function

1. The "Send to agent" heading is gone. The composer directly above already asks the question — its placeholder is literally "What should the agent work on?" — so the kicker restated it, and worse put a section break between the two halves of one decision. Measured: the composer ended at y=779 and "Next best" began at y=924, reading as a separate feature rather than the other way to answer the same prompt. The honesty chip stays; it says something the button cannot ("Builder online").

2. One reuse affordance instead of two. RecentPromptChips and ProjectPromptLibrary do the same job with the same handler — onPick={onCustomChange} and onSelect={onCustomChange}, both "put text in the composer" — yet rendered as two blocks with two headings: 4 of the 22 controls and ~150px, below the fold, competing with the composer they feed. They now share one labelled disclosure, closed by default.

CSS-only (max-lg:hidden plus a lg:hidden toggle), so there's no hydration branch and desktop is untouched — that card has the room and never had the problem.

Result

Same environment, same project, before → after:

	before	after
height	1088px	888px (−18%)
words	114	91 (−20%)
controls	22	19

Not done — named rather than implied

Of the 19 that remain, six are header context/navigation (streak, Focus terminal, Open here, branch, project details, agent setup) that you pass before reaching the question. That's the next lever.

And Autopilot on / Pause automatic continuation are two adjacent controls about whether it keeps going by itself. They are genuinely distinct (automationMode vs per-project auto-continue), so merging them is a semantics change I'm not making blind.

pnpm run verify passes.

🤖 Generated with Claude Code

https://claude.ai/code/session_01UvjGNAS9CMfEGNW26tUR4P