Make frequency of sensor runs customizable

Author: mbertrand

dg_projects/learning_resources/learning_resources/sensors/youtube_shorts.py

@@ -6,6 +6,7 @@
 """
 
 import json
+import os
 import time
 from typing import Any
 
@@ -260,7 +261,9 @@ def create_run_requests(videos_to_process, metadata_by_video_id):
         "Sensor to monitor YouTube channels for new video shorts and cleanup "
         "old S3 objects"
     ),
-    minimum_interval_seconds=60,  # Check every 1 minute for testing
+    minimum_interval_seconds=int(
+        os.getenv("YOUTUBE_SHORTS_FREQUENCY", "86400")
+    ),  # Default: once per day (86400 seconds)
     default_status=DefaultSensorStatus.RUNNING,  # Start automatically
     required_resource_keys={
         "youtube_client",