fix(planning): show the interview page's source text open and above the recommendation #7749

Parent

Refs #5795

Depends on

• none: on the frontier now

Outcome

On every interview question that carries source text, the "Source text" quote shows open and above the recommendation by default, so the user sees why the question is asked before the recommendation and Decide. Today it sits inside a "Details: what we know, alternatives" row below the recommendation and commitments, collapsed unless the user opened it before.

Owner decisions recorded on #5795 (2026-10-12): "Source text: show the Source text quote open and above the recommendation by default, or keep it collapsed under Details?" → Open and above the recommendation by default.

Key interfaces

• Interview page (plugins/planning surface index.html) detail render: the Details row and its stored moreOpen toggle (default closed).

Done when

• On first load with no stored preference, a question with source text shows the quote open and above the recommendation (UI test at 1440x900 and 390x844).
• A question without source text renders as before (UI test).
• The planning surface test suite passes.

Out of scope

• Where the alternatives render.
• Question content written by the session.