Add quarter theme — theme.json v3, classic PHP templates, PostCSS build

[Copilot]

New minimal monospace WordPress theme (quarter) replacing/succeeding spacemonkey. Classic PHP template hierarchy with theme.json v3 as the design system foundation, without enabling the full Site Editor.

Design system (theme.json v3)

• Font family: SF Mono → ui-monospace → Cascadia Code → Source Code Pro → Menlo → Consolas → monospace
• Palette: #404040 text, #4169e1 / #191970 links (same royalblue/midnightblue as spacemonkey)
• Content width 42rem, wide 64rem; 7-step spacing scale
• All tokens surfaced as --wp--preset--* custom properties; CSS references these throughout

CSS build

Source split across six partials in src/css/ (_base, _layout, _typography, _nav, _components, _blocks). PostCSS resolves @import; cssnano runs in production. Compiled dist/css/style.css is committed.

npm run build        # dev
npm run build:prod   # minified (cssnano)
npm run watch

Classic templates

header.php, footer.php, index.php, single.php, page.php, archive.php, search.php, 404.php, comments.php — lean shells delegating to helpers in includes/template-tags.php (quarter_post_date, quarter_pagination, quarter_entry_footer, quarter_post_navigation).

[davekellam]

@copilot remove elements related to registering block templates via php, i was referencing something implemented recently in wordpress 7.0 for registering simple php blocks. Also ensure the theme php files are linted using phpcs ruleset found at the root of the project

[Copilot]

@copilot remove elements related to registering block templates via php, i was referencing something implemented recently in wordpress 7.0 for registering simple php blocks. Also ensure the theme php ...

Done in 17e02bb. Removed the register_block_templates() and quarter_block_template() functions along with the init action hook from includes/init.php, and updated the file docblock accordingly.

For PHPCS: I installed WPCS and ran the theme directory against the project's phpcs.xml ruleset (which uses DK-Default → WordPress-Extra). The only flagged items are rules explicitly excluded by DK-Default (Universal.Arrays.DisallowShortArraySyntax, Squiz.ControlStructures.ControlSignature.NewlineAfterOpenBrace) — the PHP files are clean under the actual project standard.