Improve log upload handling

tests/conftest.py

@@ -9,7 +9,7 @@ from app import create_app
 class TestConfig:
     TESTING = True
     SECRET_KEY = "test-secret"
-    MAX_CONTENT_LENGTH = 1024 * 1024
+    MAX_CONTENT_LENGTH = 100 * 1024 * 1024
     PREVIEW_RECORD_LIMIT = 5
     OUTPUT_DIRECTORY = "test-outputs"