Refactor loader + step into module, use LazyBaseModule and BaseModule

src/auto_archiver/modules/cli_feeder/__manifest__.py

@@ -8,9 +8,9 @@
     'entry_point': 'cli_feeder::CLIFeeder',
     "configs": {
         "urls": {
-            "default": None,
             "help": "URL(s) to archive, either a single URL or a list of urls, should not come from config.yaml",
             "nargs": "+",
+            "required": True,
         },
     },
     "description": """

src/auto_archiver/modules/cli_feeder/cli_feeder.py

@@ -5,11 +5,10 @@ from auto_archiver.core import Metadata, ArchivingContext
 
 
 class CLIFeeder(Feeder):
-    name = "cli_feeder"
 
     def __iter__(self) -> Metadata:
         for url in self.urls:
-            logger.debug(f"Processing {url}")
+            logger.debug(f"Processing URL: '{url}'")
             yield Metadata().set_url(url)
             ArchivingContext.set("folder", "cli")