docs: daily update 2026-08-05

[deco-cms]

Summary

Daily docs check for the range v4.177.4...v4.178.0 (real changes, not just the release-bump commit).

Commits reviewed

• 651a28751 feat(cms): Fast Preview — pull-based draft rendering (feat(cms): Fast Preview — pull-based draft rendering #5363) — warranted a docs update. Adds a Fast Preview switch to agent CMS settings that renders the draft against a configured preview server instead of the sandbox dev server, and reorganizes the CMS settings card into Preview / Publishing / Editing subsections (moving and relabeling two existing toggles: "Show field descriptions as tooltips" → "Compact descriptions", "Open CMS" → "Auto-open editor").

Skipped (bot/version-only commits, no docs impact):

• ebf9568026 [release]: bump changed workspace versions — version bump only, no functional diff.
• f2843dae0 [chore]: bump homebrew cask to 4.177.4 — packaging metadata only.

Files changed

• en/studio/agents.mdx — new "Fast Preview" subsection under Agents, documenting the CMS settings reorg (Preview/Publishing/Editing), the Fast Preview switch and its gating on a preview server URL, and the renamed Editing toggles.
• pt-br/studio/agents.mdx — full translation of the above, mirroring the English structure. UI labels and product terms kept in English per translation convention.

Consistency notes

• en/studio/concepts.mdx (and pt-br) still describes the Preview tab generically ("a live preview, for agents backed by a repo or site") — accurate, no change needed; Fast Preview is a mode of that same tab, not a new tab.
• en/studio/agentic-cms.mdx and en/studio/digital-experience.mdx — no direct reference to the CMS settings card or preview mechanics; left unchanged.
• en/studio/overview.mdx — no reference to this settings area; left unchanged.

Branch chaining

This PR is based on the HEAD of the most recently open docs-automation PR, #5711 (docs/auto-update-2026-08-04-release-4.177.0), to avoid conflicts with the queue of pending daily docs PRs. Please merge after #5711 (and the PRs it in turn depends on).

Auto-generated by the daily docs-maintenance automation.

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Summary by cubic

Updates docs for v4.178.0: adds Fast Preview with a reorganized CMS settings card, a new Task Board guide with automated review, Studio Native coding‑agent terminals, and the claude-code sandbox harness. Also documents BYO Claude subscription, self‑hosting env‑only auth, sandbox OTLP telemetry, connection URL checks, and other small fixes.

• New Features
  • Agentic CMS: Fast Preview (Preview tab renders drafts against your preview server) and CMS settings regrouped into Preview/Publishing/Editing; renamed toggles (Compact descriptions, Auto‑open editor).
  • Task Board: new page covering threaded comments, multi‑repo runs (TASK_ADD_REPO), QA/Code reviewers with optional auto‑merge, and “Ship to production”.
  • Studio Native: choose a coding agent (Claude Code, Codex, OpenCode) to open a live terminal per thread; reclaim local worktree on archiving the last thread for a branch.
  • Hosted runs: claude-code sandbox harness (opt‑in) runs inside the sandbox pod; Task Board uses it when eligible; personal Claude token outranks org credit for these runs.
  • AI Providers: link your own Claude Pro/Max under Settings to fund sandbox claude-code runs; auto‑fallback to org credential if token expires.
  • Agents and connections: forks appear in the repo picker; 25MB attachment warning; blocks‑form field descriptions can show as tooltips; connections to private/internal URLs are blocked and reported unhealthy.
  • Self‑hosting: auth is AUTH_* envs only (no auth-config.json), with magic link and email OTP options; STUDIO_TOPUP_FEE_PERCENT env for Stripe top‑ups; Kubernetes uses studio-sandbox-go image only; optional sandbox daemon OTLP metrics via collector ClusterIP.

^{Written for commit 287ca9a. Summary will update on new commits.}