feat: brand identity v1.0.0 — Direction C Trusted Guide (theme v2.0.0-alpha.1)

Implements weeks 1–4 of the CMO brand identity sprint.

Key changes:
- CSS token system (assets/css/brand.css): full palette, verdict tokens, component styles
- Poppins/Inter/IBM Plex Mono Google Fonts loading with preload
- Full favicon/PWA/OG asset pack (peptide-repo-brand v1.0.0)
- 5-state verdict badge + card + evidence row components
- verdict_state + signal_row post meta on pr_peptide CPT
- Homepage hero: teal bg, new H1/subhead, lime search bar
- Archive verdict filter chips (CSS + pre_get_posts query hook)
- Affiliate disclosure component (3 contexts)
- page-how-we-review.php + page-about.php templates
- Footer Our Method links
- a11y: skip-to-content, reduced-motion, aria on verdict badges

QA: PASS (0 blockers) — qa-reviews/peptide-starter-theme/2026-04-26-a2bff59.md
Staging verified: https://staging.peptiderepo.com

page-how-we-review.php

@@ -0,0 +1,44 @@
+<?php
+/**
+ * Template Name: How We Review Peptides
+ *
+ * Two-column layout with sticky sidebar ToC for the verdict system explainer.
+ *
+ * @package peptide-starter
+ */
+
+get_header();
+?>
+
+<main id="main" class="site-main">
+	<div class="page-how-we-review">
+		<div class="page-how-we-review__content">
+			<?php
+			while ( have_posts() ) {
+				the_post();
+				?>
+				<article id="post-<?php the_ID(); ?>" <?php post_class(); ?>>
+					<header class="entry-header">
+						<h1 class="entry-title"><?php the_title(); ?></h1>
+					</header>
+					<div class="entry-content">
+						<?php the_content(); ?>
+					</div>
+				</article>
+				<?php
+			}
+			?>
+		</div>
+
+		<?php if ( ! empty( get_the_content() ) ) : ?>
+			<aside class="page-how-we-review__sidebar">
+				<nav class="page-toc" aria-label="<?php esc_attr_e( 'Page contents', 'peptide-starter' ); ?>">
+					<h3><?php esc_html_e( 'Contents', 'peptide-starter' ); ?></h3>
+					<!-- JavaScript-generated ToC will be inserted here -->
+				</nav>
+			</aside>
+		<?php endif; ?>
+	</div>
+</main>
+
+<?php get_footer();