feat: professionalize platform release 0.3.13

apps/core/tasks.py

@@ -0,0 +1,17 @@
+from __future__ import annotations
+
+from celery import shared_task
+from django.core.cache import cache
+from django.utils import timezone
+
+RUNTIME_HEARTBEAT_KEY = "vacatureradar:runtime:heartbeat"
+RUNTIME_HEARTBEAT_TTL_SECONDS = 180
+
+
+@shared_task(name="apps.core.tasks.record_runtime_heartbeat", ignore_result=True)
+def record_runtime_heartbeat() -> str:
+    """Record proof that beat dispatch and a worker execution both succeeded."""
+
+    timestamp = timezone.now().isoformat()
+    cache.set(RUNTIME_HEARTBEAT_KEY, timestamp, timeout=RUNTIME_HEARTBEAT_TTL_SECONDS)
+    return timestamp