PR Core v0.5.0: Add Repo Daily CPT, taxonomy, and metaboxes

- Register repo_daily CPT at /daily/[slug]/ for editorial publications
- Register repo_daily_category taxonomy with 4 seeded terms
- Add Repo Daily metabox for author byline and clinical review flag
- Bulk-migrate _repo_daily_author on autoblogged posts (psa_source)
- Update ARCHITECTURE.md with content-type table and scanner scope
- Update CONVENTIONS.md with repo_daily meta field extension pattern
- Bump version to 0.5.0, add CHANGELOG entry

Closes v0.5.0 scope.

includes/class-pr-core-activator.php

@@ -37,9 +37,17 @@ class PR_Core_Activator {
 		PR_Core_Peptide_CPT::register_peptide_post_type();
 		PR_Core_Peptide_CPT::register_taxonomies();
 
+		// Register repo_daily CPT and taxonomy + seed terms.
+		PR_Core_Repo_Daily_CPT::register_post_type();
+		PR_Core_Repo_Daily_Taxonomy::register_taxonomy();
+		PR_Core_Repo_Daily_Taxonomy::seed_terms();
+
 		// Grant manage_peptide_content to administrators and editors.
 		self::add_capabilities();
 
+		// Bulk-set _repo_daily_author on existing posts with psa_source meta.
+		self::migrate_autoblogged_author_meta();
+
 		// Flush rewrite rules for the new CPT.
 		flush_rewrite_rules( false );
 
@@ -94,4 +102,58 @@ class PR_Core_Activator {
 			}
 		}
 	}
+
+	/**
+	 * Bulk-set _repo_daily_author on autoblogged posts.
+	 *
+	 * Sets `_repo_daily_author = 'Boo Sheeran'` on all post_type=post posts
+	 * that have the psa_source meta key present (identifying them as autoblogged).
+	 * Idempotent: skips posts that already have the meta set.
+	 *
+	 * Side effects: updates post meta in database.
+	 *
+	 * @return void
+	 */
+	private static function migrate_autoblogged_author_meta(): void {
+		global $wpdb;
+
+		// Query all posts of type 'post' that have the psa_source meta key.
+		// phpcs:disable WordPress.DB.DirectDatabaseQuery.DirectQuery
+		// phpcs:disable WordPress.DB.DirectDatabaseQuery.NoCaching
+		$post_ids = $wpdb->get_col(
+			$wpdb->prepare(
+				"SELECT DISTINCT pm.post_id
+				 FROM {$wpdb->postmeta} pm
+				 WHERE pm.meta_key = %s
+				 AND pm.post_id IN (
+					SELECT ID FROM {$wpdb->posts}
+					WHERE post_type = %s
+				 )",
+				'psa_source',
+				'post'
+			)
+		);
+		// phpcs:enable WordPress.DB.DirectDatabaseQuery.DirectQuery
+		// phpcs:enable WordPress.DB.DirectDatabaseQuery.NoCaching
+
+		if ( empty( $post_ids ) ) {
+			return;
+		}
+
+		$author_value = 'Boo Sheeran';
+
+		foreach ( $post_ids as $post_id ) {
+			$post_id = (int) $post_id;
+
+			// Skip if already set (idempotent).
+			$existing = get_post_meta( $post_id, '_repo_daily_author', true );
+			if ( ! empty( $existing ) ) {
+				continue;
+			}
+
+			// Set the author meta.
+			update_post_meta( $post_id, '_repo_daily_author', $author_value );
+		}
+	}
 }
+