fix: Implement clone_box for CompressionEngineProgram

Co-authored-by: aider (openai/andrew/openrouter/sonoma-sky-alpha) <aider@aider.chat>

src/compression_engine/program.rs

@@ -81,6 +81,18 @@ impl CompressionEngine for CompressionEngineProgram {
         self.supported
     }
 
+    fn is_internal(&self) -> bool {
+        false
+    }
+
+    fn get_status_info(&self) -> (String, String, String) {
+        (
+            self.program.clone(),
+            self.compress.join(" "),
+            self.decompress.join(" "),
+        )
+    }
+
     fn open(&self, file_path: PathBuf) -> Result<Box<dyn Read>> {
         debug!("COMPRESSION: Opening {:?} using {:?}", file_path, *self);
 
@@ -148,4 +160,8 @@ impl CompressionEngine for CompressionEngineProgram {
             stdin: Some(stdin),
         }))
     }
+
+    fn clone_box(&self) -> Box<dyn CompressionEngine + Send + Sync> {
+        Box::new(self.clone())
+    }
 }