Thanks for coming back to it, and for writing all that out. The langoustine and octopus kept coming because once you have Give Them a Job (or Mending ★50), hands keep hauling their creels while they're off on errands. The game never tells you that, so that's on me. The next update also spreads the hands over the other spots on their own, going for catches you haven't logged yet, so you won't be stuck with the one pair. Missing the hands arriving while the Pier board was open is a good catch, and I've noted the notices toggle and an easier way to see which errands have a free level-up. Glad it's a nice one to chill with.