fix: remove duplicate metadata processing in meta service

Co-authored-by: aider (openai/andrew/openrouter/qwen/qwen3-coder) <aider@aider.chat>

src/services/meta_service.rs

@@ -165,23 +165,18 @@ impl MetaService {
         response: crate::meta_plugin::MetaPluginResponse,
     ) {
         for meta_data in response.metadata {
-            if let Some(processed_meta) = crate::meta_plugin::process_metadata_outputs(
-                &meta_data.name,
-                meta_data.value,
-                plugin.outputs()
-            ) {
+            // The metadata has already been processed by the plugin, so we can use it directly
             // Save to database
             let db_meta = crate::db::Meta {
                 id: item_id,
-                    name: processed_meta.name,
-                    value: processed_meta.value,
+                name: meta_data.name,
+                value: meta_data.value,
             };
             if let Err(e) = crate::db::store_meta(conn, db_meta) {
                 log::warn!("META_SERVICE: Failed to store metadata: {}", e);
             }
         }
     }
-    }
 
     pub fn collect_initial_meta(&self) -> HashMap<String, String> {
         let mut item_meta: HashMap<String, String> = crate::modes::common::get_meta_from_env();