feat: validate real-bench seat orchestration and self-repair

tests/unit/test_native_can_integration.py

@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+import os
 import unittest
 from pathlib import Path
 from unittest.mock import patch
@@ -162,6 +163,17 @@ class NativeCanIntegrationTests(unittest.TestCase):
         self.assertEqual(info["data"]["bitrate"], 2_000_000)
         self.assertEqual(info["data"]["sample_point_percent"], 80)
 
+    def test_enabling_seat_hardware_does_not_implicitly_enable_vehicle_can(self) -> None:
+        with patch.dict(
+            os.environ,
+            {"COGNITIVE_AGENT_HARDWARE_EXECUTION_ENABLED": "true"},
+            clear=False,
+        ):
+            os.environ.pop("COGNITIVE_AGENT_VEHICLE_CAN_ENABLED", None)
+            settings = VehicleCanSettings.from_env(Path(REPOSITORY_ROOT))
+
+        self.assertFalse(settings.enabled)
+
 
 if __name__ == "__main__":
     unittest.main()

tests/unit/test_self_repair.py

@@ -1,5 +1,7 @@
 from __future__ import annotations
 
+import json
+import time
 from pathlib import Path
 
 from cognitive_agent.application.self_repair.healing_model import (
@@ -81,3 +83,24 @@ def test_bridge_manager_does_not_arm_visible_tooling_by_default(tmp_path: Path)
     assert snapshot["state"] == "IDLE"
     assert snapshot["retry_armed"] is False
     assert snapshot["attempts"] == 0
+
+
+def test_bridge_manager_does_not_restart_a_live_busy_request(tmp_path: Path) -> None:
+    status_path = tmp_path / "bridge.json"
+    status_path.write_text(
+        json.dumps({
+            "heartbeat_epoch": time.time() - 5.0,
+            "bridge_state": "RUNNING",
+            "current_request_id": "SELF_HEAL_BENCH_1",
+        }),
+        encoding="utf-8",
+    )
+    manager = ZcanBridgeManager(
+        status_path,
+        tmp_path / "bridge.py",
+        heartbeat_stale_s=3.0,
+        busy_heartbeat_grace_s=45.0,
+    )
+
+    assert manager._heartbeat_online() is False
+    assert manager._bridge_busy_within_grace() is True