improvements

main.py

@@ -38,12 +38,15 @@ try:
 except ImportError:
     pass
 
-# Make src/ importable when running as `python main.py`.
+# Make src/ importable when running as `python main.py`.  Import the
+# modules by their plain names (not `src.X`) so they are the same module
+# objects the src-internal imports resolve to — `src.X` would load every
+# module twice under two names.
 sys.path.insert(0, str(Path(__file__).resolve().parent / "src"))
 
-from src.MatchesCache import MatchesCache                       # noqa: E402
-from src.LightNovelOrchestrator import LightNovelOrchestrator   # noqa: E402
-from src.MatchesWebApp import MatchesWebApp                     # noqa: E402
+from MatchesCache import MatchesCache                       # noqa: E402
+from LightNovelOrchestrator import LightNovelOrchestrator   # noqa: E402
+from MatchesWebApp import MatchesWebApp                     # noqa: E402
 
 
 def _env_str(name: str, default: "str | None" = None,