feat: implement media processing plugins and update repository structure

libertas_worker/src/plugin_manager.rs

@@ -0,0 +1,38 @@
+use std::sync::Arc;
+
+use libertas_core::{
+    models::Media,
+    plugins::{MediaProcessorPlugin, PluginContext},
+};
+
+use crate::plugins::exif_reader::ExifReaderPlugin;
+
+pub struct PluginManager {
+    plugins: Vec<Arc<dyn MediaProcessorPlugin>>,
+}
+
+impl PluginManager {
+    pub fn new() -> Self {
+        let mut plugins: Vec<Arc<dyn MediaProcessorPlugin>> = Vec::new();
+
+        plugins.push(Arc::new(ExifReaderPlugin));
+
+        println!("PluginManager loaded {} plugins", plugins.len());
+        Self { plugins }
+    }
+
+    pub async fn process_media(&self, media: &Media, context: &Arc<PluginContext>) {
+        println!(
+            "PluginManager processing media: {}",
+            media.original_filename
+        );
+        for plugin in &self.plugins {
+            println!("Running plugin: {}", plugin.name());
+            match plugin.process(media, context).await {
+                Ok(data) => println!("Plugin {} succeeded: {}", plugin.name(), data.message),
+                Err(e) => eprintln!("Plugin {} failed: {}", plugin.name(), e),
+            }
+        }
+        println!("PluginManager finished processing media: {}", media.id);
+    }
+}