fix(api): make DB migration Redis lock TTL configurable and prevent LockNotOwnedError from masking failures (#32299)

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

api/tests/test_containers_integration_tests/libs/test_auto_renew_redis_lock_integration.py

@@ -0,0 +1,38 @@
+"""
+Integration tests for DbMigrationAutoRenewLock using real Redis via TestContainers.
+"""
+
+import time
+import uuid
+
+import pytest
+
+from extensions.ext_redis import redis_client
+from libs.db_migration_lock import DbMigrationAutoRenewLock
+
+
+@pytest.mark.usefixtures("flask_app_with_containers")
+def test_db_migration_lock_renews_ttl_and_releases():
+    lock_name = f"test:db_migration_auto_renew_lock:{uuid.uuid4().hex}"
+
+    # Keep base TTL very small, and renew frequently so the test is stable even on slower CI.
+    lock = DbMigrationAutoRenewLock(
+        redis_client=redis_client,
+        name=lock_name,
+        ttl_seconds=1.0,
+        renew_interval_seconds=0.2,
+        log_context="test_db_migration_lock",
+    )
+
+    acquired = lock.acquire(blocking=True, blocking_timeout=5)
+    assert acquired is True
+
+    # Wait beyond the base TTL; key should still exist due to renewal.
+    time.sleep(1.5)
+    ttl = redis_client.ttl(lock_name)
+    assert ttl > 0
+
+    lock.release_safely(status="successful")
+
+    # After release, the key should not exist.
+    assert redis_client.exists(lock_name) == 0