Add custom 404 and 500 error handlers with corresponding templates

core/views.py

@@ -19,6 +19,36 @@ if TYPE_CHECKING:
 logger: logging.Logger = logging.getLogger(__name__)
 
 
+def handler404(request: HttpRequest, exception: Exception | None = None) -> HttpResponse:
+    """Custom 404 error handler.
+
+    Args:
+        request (HttpRequest): The request object that caused the 404.
+        exception (Exception, optional): The exception that caused the 404. Defaults to None.
+
+    Returns:
+        HttpResponse: The rendered 404 template.
+    """
+    logger.warning(
+        "404 error occurred",
+        extra={"path": request.path, "exception": str(exception) if exception else None},
+    )
+    return render(request=request, template_name="404.html", status=404)
+
+
+def handler500(request: HttpRequest) -> HttpResponse:
+    """Custom 500 error handler.
+
+    Args:
+        request (HttpRequest): The request object that caused the 500.
+
+    Returns:
+        HttpResponse: The rendered 500 template.
+    """
+    logger.error("500 error occurred", extra={"path": request.path})
+    return render(request=request, template_name="500.html", status=500)
+
+
 @require_http_methods(request_method_list=["GET", "HEAD"])
 def get_home(request: HttpRequest) -> HttpResponse:
     """Render the index page with drops grouped hierarchically by game and campaign.