feat: add cdr processing worker and dlq routing

src/core/config.py

@@ -22,6 +22,14 @@ class Settings(BaseSettings):
     kafka_batch_size: int = 131_072
     kafka_producer_max_messages: int = 100_000
 
+    kafka_dlq_topic: str = "cdr.raw.dlq"
+    kafka_consumer_group: str = "cdr-processing-workers"
+    kafka_auto_offset_reset: str = "earliest"
+
+    kafka_consumer_poll_timeout_seconds: float = 1.0
+    kafka_dlq_delivery_timeout_seconds: float = 5.0
+
+    worker_instance_id: str = "worker-1"
 
 @lru_cache
 def get_settings() -> Settings: