test(ci): TEMPORARY deliberate integration failure, to watch the publish gate reject a red run (rule 177, #4958)

Reverted next. Expect: integration red, Build & push skipped, :dev unmoved,
no image tagged with this commit.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/test_integration_gate_probe.py

@@ -0,0 +1,9 @@
+"""TEMPORARY — a deliberate integration failure to watch the publish gate
+reject a run (rule 177's verify_with, #4958). Reverted in the next commit."""
+import pytest
+
+pytestmark = [pytest.mark.integration]
+
+
+def test_the_publish_gate_is_watched_rejecting_a_red_integration_run():
+    raise AssertionError("deliberate: the build job must report skipped, and :dev must not move")