Adopt reusable CI standard + PHPUnit conversion (#22)

Squash-merge of PR #22: adopt shared reusable CI workflow, convert PHPUnit to stubs, update branch-protection contexts.

QA-approved at 05d8094a1d. All required CI checks green.

Agent-Session: 2026-06-17-prcore-ci-deploy

includes/admin/class-pr-core-settings-renderer.php

@@ -0,0 +1,134 @@
+<?php
+/**
+ * Settings Renderer.
+ *
+ * @package Peptide_Repo_Core
+ */
+
+declare(strict_types=1);
+
+/**
+ * Static methods that output HTML for each settings field on the PR Core settings page
+ *
+ * @package Peptide_Repo_Core
+ */
+
+/**
+ * Render methods for the PR Core settings admin page.
+ *
+ * What: Static methods that output HTML for each settings field on the PR Core settings page.
+ * Who calls it: PR_Core_Settings — register_*_section() methods reference these via add_settings_field().
+ * Dependencies: PR_Core_Settings (for option key constants).
+ *
+ * @see admin/class-pr-core-settings.php — Settings registration and sanitization.
+ */
+class PR_Core_Settings_Renderer {
+
+	/**
+	 * Render the settings page form.
+	 *
+	 * @return void
+	 */
+	public static function render_page(): void {
+		?>
+		<div class="wrap">
+			<h1><?php esc_html_e( 'PR Core Settings', 'peptide-repo-core' ); ?></h1>
+			<form method="post" action="options.php">
+				<?php
+				settings_fields( self::OPTION_GROUP );
+				do_settings_sections( self::OPTION_GROUP );
+				submit_button();
+				?>
+			</form>
+		</div>
+		<?php
+	}
+
+	/**
+	 * Render output.
+	 *
+	 * @return void
+	 */
+	public static function render_enabled_field(): void {
+		$enabled = (bool) get_option( self::RELATED_ENABLED, true );
+		printf(
+			'<input type="checkbox" name="%s" value="1"%s /> %s',
+			esc_attr( self::RELATED_ENABLED ),
+			checked( $enabled, true, false ),
+			esc_html__( 'Show related monographs on single peptide pages', 'peptide-repo-core' )
+		);
+	}
+
+	/**
+	 * Render output.
+	 *
+	 * @return void
+	 */
+	public static function render_limit_field(): void {
+		printf(
+			'<input type="number" name="%s" value="%d" min="1" max="6" />',
+			esc_attr( self::RELATED_LIMIT ),
+			absint( get_option( self::RELATED_LIMIT, 3 ) )
+		);
+		echo '<p class="description">' . esc_html__( 'Number of articles to display (1-6). Default: 3.', 'peptide-repo-core' ) . '</p>';
+	}
+
+	/**
+	 * Render output.
+	 *
+	 * @return void
+	 */
+	public static function render_verification_section(): void {
+		echo '<p>' . esc_html__( 'Configure automatic staleness scanning and digest notifications.', 'peptide-repo-core' ) . '</p>';
+	}
+
+	/**
+	 * Render output.
+	 *
+	 * @return void
+	 */
+	public static function render_cadence_field(): void {
+		$current = get_option( self::SCAN_CADENCE, 'weekly' );
+		echo '<select name="' . esc_attr( self::SCAN_CADENCE ) . '">';
+		foreach ( array(
+			'daily'   => 'Daily',
+			'weekly'  => 'Weekly',
+			'monthly' => 'Monthly',
+		) as $val => $label ) {
+			printf( '<option value="%s"%s>%s</option>', esc_attr( $val ), selected( $current, $val, false ), esc_html( $label ) );
+		}
+		echo '</select>';
+	}
+
+	/**
+	 * Render output.
+	 *
+	 * @return void
+	 */
+	public static function render_threshold_field(): void {
+		printf( '<input type="number" name="%s" value="%d" min="1" />', esc_attr( self::DEFAULT_THRESHOLD ), absint( get_option( self::DEFAULT_THRESHOLD, 180 ) ) );
+	}
+
+	/**
+	 * Render output.
+	 *
+	 * @return void
+	 */
+	public static function render_high_velocity_field(): void {
+		printf( '<input type="number" name="%s" value="%d" min="1" />', esc_attr( self::HIGH_VELOCITY_THRESHOLD ), absint( get_option( self::HIGH_VELOCITY_THRESHOLD, 60 ) ) );
+	}
+
+	/**
+	 * Render output.
+	 *
+	 * @return void
+	 */
+	public static function render_email_field(): void {
+		printf(
+			'<input type="text" name="%s" value="%s" class="regular-text" placeholder="admin@example.com" />',
+			esc_attr( self::VERIFICATION_EMAIL ),
+			esc_attr( (string) get_option( self::VERIFICATION_EMAIL, '' ) )
+		);
+		echo '<p class="description">' . esc_html__( 'Comma-separated. Leave blank to disable email digests.', 'peptide-repo-core' ) . '</p>';
+	}
+}