feat: add cdr processing worker and dlq routing

src/core/worker/main.py

@@ -0,0 +1,51 @@
+import logging
+import signal
+
+from core.config import get_settings
+from core.worker.consumer import ProcessingWorker
+
+
+logging.basicConfig(
+    level=logging.INFO,
+    format=(
+        "%(asctime)s "
+        "%(levelname)s "
+        "%(name)s "
+        "%(message)s"
+    ),
+)
+
+
+def main() -> None:
+    settings = get_settings()
+
+    worker = ProcessingWorker(
+        settings=settings,
+    )
+
+    def handle_shutdown(
+        signum,
+        frame,
+    ) -> None:
+        logging.getLogger(__name__).info(
+            "Shutdown signal received: %s",
+            signum,
+        )
+
+        worker.stop()
+
+    signal.signal(
+        signal.SIGINT,
+        handle_shutdown,
+    )
+
+    signal.signal(
+        signal.SIGTERM,
+        handle_shutdown,
+    )
+
+    worker.run()
+
+
+if __name__ == "__main__":
+    main()