fix: expand Runware pricing whitelist to all 15 registry models (v0.14.0)

All Runware model selections except schnell and dev were silently falling
back to runware:100@1 because COST_PER_IMAGE only had 2 entries while the
image model registry was expanded to 15 models in v0.13.8.

Fix: add all 15 model IDs to COST_PER_IMAGE and DEFAULT_STEPS.

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:           0.13.9
+ * Version:           0.14.0
  * 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', '0.13.9' );
+define( 'PRAUTOBLOGGER_VERSION', '0.14.0' );
 define( 'PRAUTOBLOGGER_DB_VERSION', '1.1.0' );
 define( 'PRAUTOBLOGGER_PLUGIN_FILE', __FILE__ );
 define( 'PRAUTOBLOGGER_PLUGIN_DIR', plugin_dir_path( __FILE__ ) );