Improve logic in ConfigLoader to handle binaries in PATH

yt-playlist-main.py

@@ -82,16 +82,22 @@ class ConfigLoader:
             json.dump(self.DEFAULT_CONFIG, f, indent=2)
 
     def _check_binary(self, path_str, name):
+        # If path_str looks like a system binary (no slashes), check PATH only
+        if os.sep not in path_str and '/' not in path_str:
+            if shutil.which(path_str):
+                return
+            print(
+                f"{WARN}[ERROR] {name} not found in system PATH.\n"
+                f"  Configured path: '{path_str}'\n"
+                f"Please install or correct the path in yt-playlist-config.json ."
+            )
+            sys.exit(1)
+        else:
             path = Path(path_str)
-
-        # If relative, resolve relative to the config file location
             if not path.is_absolute():
                 path = (self.config_path.parent / path).resolve()
-
-        # Check direct file existence OR system PATH
             if path.is_file() or shutil.which(str(path)):
                 return
-
             print(
                 f"{WARN}[ERROR] {name} not found.\n"
                 f"  Configured path: '{path_str}'\n"