Fix review issue #3: Move sys.path.insert to top of conftest.py before pygame setup

Author: mcode-bot

tests/conftest.py

@@ -2,6 +2,9 @@
 import os
 from unittest.mock import MagicMock
 
+# Add repo root to sys.path before any game module imports are attempted
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), ".."))
+
 # Set dummy SDL drivers so pygame.init() doesn't error on headless/audio-less systems
 os.environ.setdefault("SDL_VIDEODRIVER", "dummy")
 os.environ.setdefault("SDL_AUDIODRIVER", "dummy")
@@ -12,6 +15,3 @@
 # Patch mixer before game is imported so Game.__init__ doesn't need real audio hardware
 pygame.mixer.Sound = MagicMock(return_value=MagicMock())
 pygame.mixer.music = MagicMock()
-
-# Add repo root to sys.path so all source modules are importable
-sys.path.insert(0, os.path.join(os.path.dirname(__file__), ".."))