Resilience pass: bulletproof recovery + FWS / fault polling + EG4 discovery refresh

LVX6048/powermon-patches/pi18.py

@@ -461,9 +461,12 @@ QUERY_COMMANDS = {
         "command_type": CommandType.PI18_QUERY,
         "result_type": ResultType.COMMA_DELIMITED,
         "reading_definitions": [
+            # Defensive: any 2-digit code outside this map shows as
+            # "Fault NN" rather than crashing the entire poller.
             {"description": "Fault code", "reading_type": ReadingType.MESSAGE,
                 "response_type": ResponseType.OPTION,
                 "options": {
+                    **{f"{i:02d}": f"Fault {i:02d}" for i in range(0, 100)},
                     "00": "No fault",
                     "01": "Fan is locked",
                     "02": "Over temperature",