add some comment for lisa test writer

Author: paxue

.github/prompts/lisa_test_writer.prompt.md

@@ -104,11 +104,22 @@ class SriovValidation(TestSuite):
         requirement=simple_requirement(network_interface=Sriov()),
     )
     def verify_sriov_basic(self, node: Node, log: Logger) -> None:
+        # --- Arrange ---
         lspci = node.tools[Lspci]
+
+        # --- Act ---
+        # Minimal action: Capture the current hardware state
         log.info("Scanning PCI bus for Virtual Functions...")
         vf_slots = lspci.get_device_names_by_type(DEVICE_TYPE_SRIOV, force_run=True)
-        assert vf_slots, "No SR-IOV VF devices found via lspci."
+
+        # --- Assert ---
+        assert vf_slots, "No SR-IOV VF devices found via lspci. Verify SR-IOV is enabled."
+        log.info("Successfully validated SR-IOV Virtual Function presence.")
 
     def after_case(self, log: Logger, **kwargs: Any) -> None:
+        """
+        Cleanup or post-test telemetry can be added here.
+        """
         pass
+
 ```