- turned model_variables into a class with lazy loading

- some improvements to Healthchecks

eveai_chat/views/healthz_views.py

@@ -20,7 +20,7 @@ def liveness():
 def readiness():
     checks = {
         "database": check_database(),
-        # "celery": check_celery(),
+        "celery": check_celery(),
         # Add more checks as needed
     }
 
@@ -41,7 +41,7 @@ def check_database():
 def check_celery():
     try:
         # Send a simple task to Celery
-        result = current_celery.send_task('tasks.ping', queue='llm_interactions')
+        result = current_celery.send_task('ping', queue='llm_interactions')
         response = result.get(timeout=10)  # Wait for up to 10 seconds for a response
         return response == 'pong'
     except CeleryTimeoutError: