// ── slot ───────────────────────────────────────────────────────────────────
  if (group === "slot") {
    if (sub === "add") {
      const hour      = interaction.options.getInteger("hour", true);
      const pollOpens = interaction.options.getString("poll_opens", true);
      const slots     = Config.get({ section: "poll", key: "slots" });
      if (slots.some((s) => s.tgHour === hour)) return void replyAndDelete(interaction, `❌ Slot ${hour}:00 already exists.`);
      slots.push({ tgHour: hour, pollOpens, closesAfter: Config.get({ section: "tg", key: "durationMinutes" }), active: true });
      Config.set({ section: "poll", key: "slots", value: slots });
      return void replyAndDelete(interaction, `✅ Slot ${hour}:00 added (poll opens at ${pollOpens}).`);
    }
    if (sub === "remove") {
      const hour  = interaction.options.getInteger("hour", true);
      const slots = Config.get({ section: "poll", key: "slots" }).filter((s) => s.tgHour !== hour);
      Config.set({ section: "poll", key: "slots", value: slots });
      return void replyAndDelete(interaction, `✅ Slot ${hour}:00 removed.`);
    }
  }

  // ── wrank ──────────────────────────────────────────────────────────────────
  if (group === "wrank") {
    if (sub === "set-goal")          { setCfg("wRankGoal",        interaction.options.getInteger("goal", true));    return void replyAndDelete(interaction, "✅ W.Rank goal updated."); }
    if (sub === "set-post-on-reset") { setCfg("wRankPostOnReset", interaction.options.getBoolean("enabled", true)); return void replyAndDelete(interaction, "✅ W.Rank post on reset updated."); }
  }

  // ── tg ─────────────────────────────────────────────────────────────────────
  if (group === "tg") {
    if (sub === "set-score-window") { setCfg("scoreWindowHours",  interaction.options.getNumber("hours", true));   return void replyAndDelete(interaction, "✅ Score window updated."); }
    if (sub === "set-duration")     { setCfg("tgDurationMinutes", interaction.options.getInteger("minutes", true)); return void replyAndDelete(interaction, "✅ TG duration updated."); }
    if (sub === "set-no-display") { setCfg("showNoInNationField" as any, interaction.options.getString("mode", true) === "inline"); return void replyAndDelete(interaction, "✅ No voter display updated."); }
    if (sub === "set-nation-source"){ setCfg("nationSource",      interaction.options.getString("nation", true) as Nation); return void replyAndDelete(interaction, "✅ Nation source updated."); }
  }

  if (group === "poll") {
    if (sub === "set-layout") return handleSetLayout(interaction);
  }
}