feat(metrics): add copykar_redis_queue_size gauge and update grafana queue panels

services/queue_consumer.py

@@ -4,7 +4,7 @@ import logging
 from typing import Optional
 from core.queue import RedisQueue
 from services.ai_processor import AIProcessor
-from core.metrics import QUEUE_POSTS_GAUGE
+from core.metrics import QUEUE_POSTS_GAUGE, REDIS_QUEUE_SIZE_GAUGE
 
 logger = logging.getLogger(__name__)
 
@@ -29,6 +29,7 @@ class QueueConsumerService:
             try:
                 qsize = await self.queue.qsize()
                 QUEUE_POSTS_GAUGE.labels(status="redis_incoming").set(qsize)
+                REDIS_QUEUE_SIZE_GAUGE.set(qsize)
 
                 if qsize > 0:
                     post_id = await self.queue.pop()
@@ -37,6 +38,7 @@ class QueueConsumerService:
                         await self.ai_processor.process_post(post_id)
                         new_qsize = await self.queue.qsize()
                         QUEUE_POSTS_GAUGE.labels(status="redis_incoming").set(new_qsize)
+                        REDIS_QUEUE_SIZE_GAUGE.set(new_qsize)
             except Exception as e:
                 logger.error(f"Error in queue consumer loop: {e}", exc_info=True)