Prod check reads the page's reports, today's trace steps and DeadAir's events

A seventh check groups the browser's errors and lists play starts and
stalls (ipx::client, #190); the trace check names the steps of an item
list, the feed list, a reap and DeadAir's per-file trace (#187), and says
a trace with no name began in the page (#192), which query.py now labels;
the events list has deadair_done and DeadAir's own lines; and "since the
last deploy" is worked out from the container's start.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.claude/skills/ipx-prod-check/query.py

@@ -54,7 +54,9 @@ def main():
         traces = sorted(r.get("traces", []), key=lambda t: -t.get("durationMs", 0))
         for t in traces:
             when = time.strftime("%m-%d %H:%M:%S", time.gmtime(int(t["startTimeUnixNano"]) / 1e9))
-            print(f"{t.get('durationMs', 0):>8}ms  {when}Z  {t['traceID']}  {t.get('rootTraceName', '')}")
+            # No root name: its root span is a tap in the page, which the browser never sends.
+            name = t.get("rootTraceName") or "(from the page)"
+            print(f"{t.get('durationMs', 0):>8}ms  {when}Z  {t['traceID']}  {name}")
         print(f"-- {len(traces)} trace(s)", file=sys.stderr)
     elif kind == "prom":
         # ipx's /metrics (#194), scraped as job ipx; through the network like the others.