fix: Add missing 'import re' to game_reader_test plugin

The _parse_skills_from_text method uses re (regex) but it was only
imported inside a nested function, not at module level.

Added 'import re' at the top of the file.

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.
 """
 
+import re
 from pathlib import Path
 from PyQt6.QtWidgets import (
     QWidget, QVBoxLayout, QHBoxLayout, QTextEdit,