[backnotprop]

Follow-up to the 0.52.0 decision toggle for the Workspaces Inbox (approved design: "the tag is the switch" on every question, off by default; "clicking the tag's words opens the decision card"). Targets ui 0.52.1, additive. No version bump in this PR.

What changes

1. Any question can record a decision. questionDecisionRecording (Viewer) / decisionRecording (QuestionBlock) now also reaches a question with no Decision: line. A boolean adds the "◇ Records a decision" tag in that state, and with the toggle handler makes it the toggle. undefined leaves the question tag-less, as before. On shows the "Answering this records a decision" row. Off hides it. A recorded decision is never affected.

2. A separate opener. New onOpenQuestionDecision(key, anchor) (Viewer, BlockRenderer) / onOpenDecision(key, anchor) (QuestionBlock). When it is set, the tag is two sibling buttons inside one visual tag ([data-question-decision-tag]):

   • The diamond is the switch: aria-pressed, labelled "Record as a decision", [data-question-decision-toggle].
   • The words are a button with aria-haspopup="dialog" and [data-question-decision-open]. It calls the handler with its own element, which the host uses as the popover anchor.

   The opener works whether recording is on or off; the host decides what the card does for an off question. Without the opener, the whole tag is the toggle, exactly as in 0.52.0.

3. Read-only cards are never interactive. Viewer drops the opener under readOnly.

Behavior change for 0.52.0 hosts: a host that returned a boolean for every question now gets the tag on plain questions. To keep a plain question without a tag, return undefined for it. This is in HANDOFF.

Verification

• Byte-identical without props: I rendered main and this branch through BlockRenderer and Viewer, both interactive and readOnly, with no new props. The outputs are identical (cmp).
• Tests: new DOM test QuestionBlock.decisionAnyQuestion.test.tsx, added to the DOM_TESTS step. I updated one 0.52.0 test whose premise changed: a plain question given a state now gets the toggle. I mutation-checked the new tests and both mutations fail them.
• Suites: bun test packages/ui and DOM_TESTS=1 bun test --isolate packages/ui both pass, and so do bun run typecheck and smoke:package.
• guides.show: build:viewer plus check:manifest report the manifest in sync. Viewer CSS and JS are unchanged.
• Headless Chromium (default theme, --use-mock-keychain --password-store=basic):
  • Tab order is switch, then words. Space toggles and Enter opens with the anchor.
  • Contrast when off: 7.37:1 dark, 8.98:1 light. When on: 5.84:1 dark, 5.15:1 light.
  • The focus ring measures 7.53:1 dark and 6.53:1 light.
  • The tag has the same box as in 0.52.0.
  • Known: both targets are 17.75 px tall, which is below the 24 px target size. The approved design keeps the tag compact.