changes to task scheduling and readability change on downloads view

.env.example

@@ -59,6 +59,7 @@ DB_NAME=gallery_subscriber
 
 REDIS_HOST=redis
 REDIS_PORT=6379
+REDIS_DB=0
 
 # ===========================================
 # Data Storage Paths
@@ -84,3 +85,6 @@ REDIS_PORT=6379
 # Only set these directly for special configurations
 # DATABASE_URL=postgresql://gdl:password@localhost:5432/gallery_subscriber
 # REDIS_URL=redis://localhost:6379/0
+#
+# IMPORTANT: All services (app, scheduler, worker) MUST use the same Redis database.
+# If you change REDIS_DB, ensure all containers are restarted together.