fix: Add missing Path import to game_reader_test plugin

BUG: NameError: name 'Path' is not defined when browsing for image file.

The pathlib.Path import was missing. Added it to the imports section.

plugins/game_reader_test/plugin.py

@@ -5,6 +5,7 @@ Debug and test tool for OCR and game reading functionality.
 Tests screen capture, OCR accuracy, and text extraction.
 """
 
+from pathlib import Path
 from PyQt6.QtWidgets import (
     QWidget, QVBoxLayout, QHBoxLayout, QTextEdit,
     QLabel, QPushButton, QComboBox, QCheckBox,