Trying to sanitize the file names

gemini/gemini.py

@@ -193,9 +193,18 @@ def main():
                     print(f"Warning: File '{file_path}' not found. Skipping.", file=sys.stderr)
                     continue
                 
-                print(f"Uploading '{file_path}'...")
-                uploaded_file = client.files.upload(file=file_path)
-                print(f"Success: '{file_path}' uploaded as '{uploaded_file.name}'")
+                # Sanitize the filename for HTTP headers (replace non-ASCII with underscores)
+                base_name = os.path.basename(file_path)
+                safe_name = "".join([c if ord(c) < 128 else "_" for c in base_name])
+                
+                print(f"Uploading '{file_path}'...", file=sys.stderr)
+                
+                # Force the SDK to use our sanitized name for the upload display name
+                uploaded_file = client.files.upload(
+                    file=file_path,
+                    config={'display_name': safe_name}
+                )
+                print(f"Success: '{file_path}' uploaded as '{uploaded_file.name}'", file=sys.stderr)
                 
                 if uploaded_file.name not in context_data["file_ids"]:
                     context_data["file_ids"].append(uploaded_file.name)