A module can be one page, with no sidebar (#330)

[ifahimreza]

Closes #330

What

A module descriptor can say 'layout' => 'page'. Saddle then draws that module as one page: no sidebar and no icon tab row. Saddle Analytics uses it next (plan: planning/ANALYTICS-ONE-PAGE.md, P1). Rank and CRM keep the sidebar.

How

• Descriptor: Saddle_Modules::modules() keeps layout as page or sections, the default. Anything else becomes sections, and every Core page is sections. The admin app gets it with each area.
• Header and width (frameHeader()): the first tab is the page, 1040 wide like Home. Any other tab (Settings, reached by address) reads Saddle / Module / Settings, 920 wide, and the module crumb leads back. A drill-in reads Saddle / Module / title, with no section crumb.
• Feature check: saddleShell.has( 'page-layout' ).
• Older Core: it ignores the key and draws the tabs as sections, so nothing breaks.
• Changelog: I wrote the entry under 1.5.1. The version is your call.
• Bundle: the second commit rebuilds admin/build. main's committed bundle was older than its sources; the main checkout carries the same uncommitted rebuild.

Testing

• PHPUnit, PHP 8.2: 1447 tests, 0 failures, 1 skipped. New: the layout values a descriptor can give (a data provider), and the layout in the app's data.
• Jest: 342/342 on 3 of 4 runs. One run had a single failure that did not come back in three re-runs (likely timing). New: six frameHeader cases for a one-page module.
• wp-scripts lint-js clean on the changed files; phpcs clean on includes/.
• Checked in a real install with its first user, plugpressco/saddle-analytics#18, on WordPress 7.1.2. A click-through with real mouse events passes 23/23: no sidebar or tab row on the page; Settings reads Saddle / Analytics / Settings, has no sidebar, and its Analytics crumb leads back; no script errors. Rank and CRM descriptors are untouched (no layout), so they keep the sidebar.

🤖 Generated with Claude Code

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