Add bounded audit-core E2 target adapter

Assistant: codex
Assistant-Model: gpt-5.6-sol
Assistant-Session: 01a0260c-4067-7052-9647-ad000d576e38

tests/test_audit_core_runner.py

@@ -0,0 +1,32 @@
+import importlib.util
+from pathlib import Path
+
+
+SPEC = importlib.util.spec_from_file_location(
+    "audit_core_e2_runner", Path("runners/audit_core_e2.py")
+)
+runner = importlib.util.module_from_spec(SPEC)
+assert SPEC.loader is not None
+SPEC.loader.exec_module(runner)
+
+
+def test_equivalent_denial_includes_digest():
+    base = {
+        "status": 404, "content_type": "application/json", "count": 1,
+        "schema": ["$", "$.error:str"], "run_digest": "same",
+    }
+    assert runner.equivalent(base, dict(base))
+    changed = dict(base, run_digest="different")
+    assert not runner.equivalent(base, changed)
+
+
+def test_event_is_synthetic_and_correlation_bound():
+    payload = runner.event("event-a", "tenant-a", "corr")
+    assert payload["id"] == payload["data"]["fixture_id"]
+    assert payload["tenant"] == "tenant-a"
+    assert payload["correlation_id"] == "corr"
+
+
+def test_p95_is_conservative_for_small_runs():
+    assert runner._p95([10, 20, 30]) == 30
+