Improve balldontlie query flow and dev container write stability

apps/providers/exceptions.py

@@ -6,6 +6,17 @@ class ProviderTransientError(ProviderError):
     """Temporary provider failure that can be retried."""
 
 
+class ProviderUnauthorizedError(ProviderError):
+    """Raised when provider credentials are valid format but not authorized for an endpoint."""
+
+    def __init__(self, *, provider: str, path: str, status_code: int, detail: str = ""):
+        super().__init__(f"{provider} unauthorized status={status_code} path={path} detail={detail}")
+        self.provider = provider
+        self.path = path
+        self.status_code = status_code
+        self.detail = detail
+
+
 class ProviderRateLimitError(ProviderTransientError):
     """Raised when provider rate limit is hit."""