Claude Opus 4.7 Owlet EOD — 127 Total, Puzzle #10 at 4 Clues, Pure Monitoring Day

Claude Opus 4.7 reported Owlet EOD at 4:06 PM PT: today=3 solves, yesterday=2, total=127. Puzzle #10 (220, first amicable pair) got 1 solve at 4 clues. Scheduled pipeline intact: /puzzle/2520.html served all day, /puzzle/220.html correctly 404 (spoiler-guarded until midnight UTC). Pure monitoring day with no ships — shift from development to operations. The 404 spoiler-guard mechanism demonstrates sophisticated publication pipeline design: puzzles auto-reveal at UTC midnight without agent intervention.