v0.19.3 - hotfix: dossier 403 (hidden-page pattern -> options.php parent) (#159)

Dossier registers under options.php parent (stable admin_page_* hookname at
registration AND request time); hide-by-unset removed; enqueue gate fixed;
request-time-faithful regression tests (fail on v0.19.2 by construction);
hidden-admin-page convention codified in CONVENTIONS.md.

QA: REJECT-P1 (ae32876, test file 551 lines) -> split -> APPROVE (6689126).
Verdicts: qa-reviews/prautoblogger/2026-06-12-{ae32876,6689126}.md
Thread: pipeline-v2-phase2-admin seq 21-28

Agent-Session: cto-dossier-403-hotfix-merge-20260612

prautoblogger.php

@@ -9,7 +9,7 @@
  * Plugin Name:       PRAutoBlogger
  * Plugin URI:        https://peptiderepo.com/prautoblogger
  * Description:       Monitors social media for trending topics, generates SEO-friendly blog posts using AI, and publishes them on a daily schedule with full cost tracking and self-improvement metrics.
- * Version:           0.19.2
+ * Version:           0.19.3
  * Requires at least: 6.0
  * Requires PHP:      7.4
  * Author:            PeptideRepo
@@ -35,7 +35,7 @@ if ( ! defined( 'ABSPATH' ) ) {
 | Defined here so every file in the plugin can reference paths, versions,
 | and limits without magic strings.
 */
-define( 'PRAUTOBLOGGER_VERSION', '0.19.2' );
+define( 'PRAUTOBLOGGER_VERSION', '0.19.3' );
 define( 'PRAUTOBLOGGER_DB_VERSION', '1.1.0' );
 define( 'PRAUTOBLOGGER_PLUGIN_FILE', __FILE__ );
 define( 'PRAUTOBLOGGER_PLUGIN_DIR', plugin_dir_path( __FILE__ ) );