feat: Update configuration handling and add debug logging for thumbnail processing

libertas_worker/src/plugins/thumbnail.rs

@@ -14,6 +14,9 @@ impl MediaProcessorPlugin for ThumbnailPlugin {
 
     async fn process(&self, media: &Media, context: &PluginContext) -> CoreResult<PluginData> {
         let config = &context.config.thumbnail_config;
+
+        println!("Thumbnail config: {:?}", config);
+
         if config.is_none() {
             return Ok(PluginData {
                 message: "Thumbnail generation is disabled in config.".to_string(),