test(integration): widen TSan shutdown windows for multi-gateway tests

The four multi-gateway aggregation tests bypassed create_gateway_node()
to build their own launch_ros.actions.Node instances and inherited the
launch default sigterm_timeout=5/sigkill_timeout=5. Under TSan the gateway
teardown sequence (mdns stop, REST server stop, transport shutdown,
plugin shutdown) routinely exceeds 5s, so launch escalates SIGINT to
SIGTERM and then to SIGKILL, leaving the process with exit -9 which is
not in ALLOWED_EXIT_CODES. test_leaf_collision_aggregation tripped on
this today; the other three are latent.

Apply the same 30s/15s windows as create_gateway_node() so all four
test families survive sanitizer slowdowns.

Author: bburda

src/ros2_medkit_integration_tests/test/features/test_cross_ecu_fanout.test.py

@@ -198,6 +198,11 @@ def generate_test_description():
             'discovery.manifest_strict_validation': False,
         }],
         additional_env=peer_domain_env,
+        # Match create_gateway_node()'s TSan/ASan-safe shutdown windows.
+        # Default 5s SIGINT->SIGTERM escalation is insufficient under
+        # sanitizers and causes SIGKILL with exit -9.
+        sigterm_timeout='30',
+        sigkill_timeout='15',
     )
 
     primary_fault_mgr = launch_ros.actions.Node(

src/ros2_medkit_integration_tests/test/features/test_daisy_chain_aggregation.test.py

@@ -148,6 +148,12 @@ def _gateway(port, name, manifest_path, domain, aggregation_peers=None):
         output='screen',
         parameters=[params],
         additional_env={'ROS_DOMAIN_ID': str(domain)},
+        # Match create_gateway_node()'s TSan/ASan-safe shutdown windows.
+        # Under sanitizers the gateway teardown sequence (mdns stop, REST
+        # server stop, transport shutdown, plugin shutdown) routinely
+        # exceeds launch's 5s default, causing SIGKILL with exit -9.
+        sigterm_timeout='30',
+        sigkill_timeout='15',
     )
 
 

src/ros2_medkit_integration_tests/test/features/test_leaf_collision_aggregation.test.py

@@ -138,6 +138,12 @@ def _gateway(port, name, manifest_path, domain, aggregation_peers=None):
         output='screen',
         parameters=[params],
         additional_env={'ROS_DOMAIN_ID': str(domain)},
+        # Match create_gateway_node()'s TSan/ASan-safe shutdown windows.
+        # Under sanitizers the gateway teardown sequence (mdns stop, REST
+        # server stop, transport shutdown, plugin shutdown) routinely
+        # exceeds launch's 5s default, causing SIGKILL with exit -9.
+        sigterm_timeout='30',
+        sigkill_timeout='15',
     )
 
 

src/ros2_medkit_integration_tests/test/features/test_peer_aggregation.test.py

@@ -104,6 +104,11 @@ def generate_test_description():
             'server.port': PEER_PORT,
         }],
         additional_env=peer_domain_env,
+        # Match create_gateway_node()'s TSan/ASan-safe shutdown windows.
+        # Default 5s SIGINT->SIGTERM escalation is insufficient under
+        # sanitizers and causes SIGKILL with exit -9.
+        sigterm_timeout='30',
+        sigkill_timeout='15',
     )
 
     # Demo nodes: each set runs in its gateway's DDS domain.