The studio's app row is one function in its own module #121

The studio's app row now lives in src/web/studio/shelf.ts: shelfRows(ctx, repos, { decisions? }) takes repositories and returns their rows, carrying with it the reads that row needs — the app records, the newest run of every app, who ran them, runtime.status, and the asks count — each made once for the whole shelf, never once per row, and the words still gathered with Promise.all because runWord reads git. The ownerFacts check that hides who ran it travelled with the row; the home keeps its own copy of that check for Happening now, now asked only of the apps with a run in flight rather than of every app. studioHome lost sixty lines and keeps the Your apps card, its head, its buttons and its empty state exactly where they were; it reads the asks once and hands them to the shelf so the panel and the pills cannot disagree or double the query.

Worth looking at: the new characterization test in test/studio.test.ts pins the rendered row byte for byte — it was written against the old code, passes against it, and passes unchanged against the new module, which is the proof that / renders the same bytes. docs/STUDIO.md and the map in CLAUDE.md name the new module. No dependency added, no behaviour changed, no feature added — the /apps shelf (#71) is deliberately not in this branch; it can now call this function.

bun x tsc --noEmit is clean and the forge.json check suite passes except for six git-push-over-HTTP tests (web, pulls, cross-repo-pull, apps, apps-adversarial) that fail identically on this branch with my changes stashed — they are this sandbox's blocked push auth, not this change. Boot smoke-tested: /healthz and / both answer 200, / in 23 ms.

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Closes #111