Throw an error for invalid __manifest__ syntax + fix: allow default values of False/None

src/auto_archiver/core/module.py

@@ -186,7 +186,7 @@ class LazyBaseModule:
             try:
                 manifest.update(ast.literal_eval(f.read()))
             except (ValueError, TypeError, SyntaxError, MemoryError, RecursionError) as e:
-                logger.error(f"Error loading manifest from file {self.path}/{MANIFEST_FILE}: {e}")
+                raise ValueError(f"Error loading manifest from file {self.path}/{MANIFEST_FILE}: {e}")
             
         self._manifest = manifest
         self._entry_point = manifest['entry_point']
@@ -256,7 +256,7 @@ class LazyBaseModule:
         instance.module_factory = self.module_factory
         
         # merge the default config with the user config
-        default_config = dict((k, v['default']) for k, v in self.configs.items() if v.get('default'))
+        default_config = dict((k, v['default']) for k, v in self.configs.items() if 'default' in v)
 
         config[self.name] = default_config  | config.get(self.name, {})
         instance.config_setup(config)