feat: add debug logging for cog.current_scope() failures

Co-authored-by: Zeke Sikelianos <zeke@users.noreply.github.com>

Author: claude[bot]

src/replicate/_client.py

@@ -21,6 +21,7 @@
 
 import httpx
 
+from replicate._utils._logs import logger
 from replicate.lib._files import FileEncodingStrategy
 from replicate.lib._predictions_run import Model, Version, ModelVersionIdentifier
 from replicate.types.prediction_create_params import PredictionCreateParamsWithoutVersion
@@ -103,8 +104,8 @@ def _get_api_token_from_environment() -> str | None:
             if str(key).upper() == "REPLICATE_API_TOKEN":
                 return str(value) if value is not None else value
 
-    except Exception:  # Catch all exceptions to ensure robust fallback
-        pass
+    except Exception as e:  # Catch all exceptions to ensure robust fallback
+        logger.debug("Failed to retrieve API token from cog.current_scope(): %s", e)
 
     return os.environ.get("REPLICATE_API_TOKEN")