Additional cleanup and warning fixing

src/file_types.rs

@@ -35,16 +35,19 @@ pub fn is_media_file(path: &Path) -> bool {
 }
 
 /// Check if a DirEntry is an image file (for walkdir usage)
+#[allow(dead_code)]
 pub fn direntry_is_image(entry: &DirEntry) -> bool {
     is_image_file(entry.path())
 }
 
 /// Check if a DirEntry is a video file (for walkdir usage)
+#[allow(dead_code)]
 pub fn direntry_is_video(entry: &DirEntry) -> bool {
     is_video_file(entry.path())
 }
 
 /// Check if a DirEntry is a media file (for walkdir usage)
+#[allow(dead_code)]
 pub fn direntry_is_media(entry: &DirEntry) -> bool {
     is_media_file(entry.path())
 }