feat(config): enforce max upload size to 200MB

config.py

@@ -5,7 +5,9 @@ BASE_DIR = os.path.abspath(os.path.dirname(__file__))
 SECRET_KEY = os.environ.get('SECRET_KEY', 'dev-secret-key-change-in-production')
 UPLOAD_FOLDER = os.path.join(BASE_DIR, 'uploads')
 DATABASE = os.path.join(BASE_DIR, 'files.db')
-MAX_CONTENT_LENGTH = 500 * 1024 * 1024
+# Max request body size for uploads: 200 MB
+# This enforces the maximum file size that can be uploaded via the service.
+MAX_CONTENT_LENGTH = 200 * 1024 * 1024
 
 EXPIRY_OPTIONS = {
     '1h': 60 * 60,