ipx-web's spans are named for the request (#286)

Caddy named every span ipx-web, so Tempo's lists and trace view showed the
same name for each request. Caddy 2.11 takes placeholders in the span name:
now the method and path, as ipx names its own. The prod check's span list
shows a span's url.path when it has no route.

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

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

@@ -68,7 +68,7 @@ def main():
             for ss in t.get("spanSets") or [t.get("spanSet") or {}]:
                 for sp in ss.get("spans", []):
                     attrs = {a["key"]: next(iter(a["value"].values()), None) for a in sp.get("attributes", [])}
-                    what = attrs.get("http.route") or attrs.get("of") or sp.get("name") or ""
+                    what = attrs.get("http.route") or attrs.get("of") or attrs.get("url.path") or sp.get("name") or ""
                     rows.append((int(sp.get("durationNanos", 0)) / 1e6, int(sp["startTimeUnixNano"]), t["traceID"], what))
         for ms, ts, tid, what in sorted(rows, reverse=True):
             when = time.strftime("%m-%d %H:%M:%S", time.gmtime(ts / 1e9))