fix(docs): delete the os studio CLI reference section - #231

Fixes #150

What

Deletes the ### \os studio` — dev server with the UI enabled section (content/docs/reference/cli.mdx:74-77, four lines: heading, blank, the single sentence, blank). Nothing else in the file changes — line 70's stale # port 3002 by default` comment is left untouched; it belongs to
#229, filed separately.

Why deletion, not correction

Triage adjudicated this on 2026-08-23 and it is not re-litigable: delete,
do not replace with corrected instructions. os dev is documented
directly above the deleted section, and the glossary already carries the
/_console/studio route, so a correction would only duplicate content
that already exists elsewhere.

Premise re-verified at implementation time

The dispatching card measured "no studio command" on objectstack at
a sha that was already stale by dispatch time. Re-verified just now on
current objectstack origin/main (e452ad5):

• packages/cli/src/commands/ (via git ls-tree) has no studio.ts /
  studio/ entry.
• Case-insensitive git grep -il studio under that directory hits only
  i18n/extract.ts, lint.ts, a migrate integration test, and a serve
  test — never a command definition. Control probe: the same grep style
  does find dev.ts under that directory, so the pattern is not
  silently matching nothing.
• packages/cli/package.json's oclif.commands still uses
  "strategy": "pattern" against ./dist/commands with no alias map,
  so the shipped command set is exactly the files on disk — confirmed
  unchanged from the dispatching card's measurement.

os studio still does not exist. The deletion stands.

Blast radius

git grep 'reference/cli#' across content/docs returns zero anchor
links into any section of this file (control-probed: plain
/docs/reference/cli page links do exist in the corpus, e.g.
build/ai-builder.mdx, so the zero is a real absence and not a dead
probe). No other mention of "os studio" exists anywhere under
content/docs.

Out of scope (left alone on purpose)

• Line 70 (os dev # port 3002 by default) — wrong (measured default
  is 3000; quickstart.mdx:200-203 already says so), and it's reference/cli.mdx:70 says os dev defaults to port 3002 — PR #143 measured 3000, and quickstart already says so #229,
  filed specifically so it wouldn't ride along here.
• objectstack packages/cli/README.md:45's stale row — filed as its own
  card in the framework repo by triage; not widened into this PR.
• Locale siblings — untouched; translations are never a dev agent's
  output in this repo.

Verification

Run from the repo root, on worktree objectos-issue-150 at commit
a1fdc91:

• pnpm turbo run build --force — Tasks: 1 successful, 1 total.
• pnpm turbo run test --force — Tasks: 1 successful, 1 total; the
  check-locale-surface.mjs self-tests inside it all pass.
• node .github/scripts/check-locale-surface.mjs (run directly, from
  repo root, after the build above) — verdict line: "every advertised
  URL has a source file and every source file is advertised; both
  llms bodies carry every en-only page title and none from the other
  locales; and no page slug in the content tree contains a dot". This
  is the gate that would notice if deleting a heading moved the
  advertised llms.txt / llms-full.txt surface — it does not, since
  those track page titles, not sub-headings.

git diff --stat: content/docs/reference/cli.mdx | 4 ----, one file,
four deletions, nothing else.

Generated by Claude Code