What

Add a way to set the page layout of a Google Doc — specifically the pageless flag — via the gog CLI.

Why

Google Docs supports two layouts: the classic paged view and the newer pageless view (File → Page setup → Pageless). Pageless is preferable for content where rich tables, wide code blocks, and long-form prose would otherwise break across page boundaries — which describes most agent-generated docs.

The Docs API supports this via documents.batchUpdate with updateDocumentStyle:

{
  "requests": [{
    "updateDocumentStyle": {
      "documentStyle": { "flipPageOrientation": false, "pageless": true },
      "fields": "pageless"
    }
  }]
}

There's no current gog command that exposes this. Today the only path is the UI (File → Page setup), which means a docs-create + write pipeline can't end in the layout the author actually wants.

Suggested shape

gog docs set-page-layout <docId> --layout=pageless    # or paged
# or as a flag on create:
gog docs create "My Doc" --file=in.md --markdown --pageless

Either form is fine — flag-on-create is the more useful place since most automated pipelines set the layout once at creation time.

Scope

• updateDocumentStyle for pageless is the single load-bearing field.
• Other documentStyle fields (margins, page size, background colour) are nice-to-have but not driving this request.

Context

Filed alongside #592 (table-insert bug). For agent-driven doc creation, pageless is the layout that actually renders multi-tab + table-heavy specs cleanly — paged is the wrong default for that use case.