Add lobby and pack concept.

internal/server/server.go

@@ -124,38 +124,20 @@ type joinResponse struct {
 func (s *Server) handleCreate(w http.ResponseWriter, req *http.Request) {
 	var body struct {
 		Name string `json:"name"`
-		// Bot, when set, fills the other seat with a computer player:
-		// "easy" | "medium" | "hard".
-		Bot string `json:"bot"`
 	}
 	if err := json.NewDecoder(req.Body).Decode(&body); err != nil {
 		httpError(w, http.StatusBadRequest, "invalid JSON body")
 		return
 	}
-	var bot struct {
-		level float64
-		name  string
-	}
-	if body.Bot != "" {
-		var ok bool
-		bot, ok = botDifficulty[body.Bot]
-		if !ok {
-			httpError(w, http.StatusBadRequest, "unknown bot difficulty")
-			return
-		}
-	}
+	// The creator becomes the host (seat 0). They then set up the lobby —
+	// choosing a pack, adding a bot, or waiting for a friend — and start the
+	// game when ready.
 	g := game.New()
 	p, err := g.AddPlayer(strings.TrimSpace(body.Name))
 	if err != nil {
 		httpError(w, http.StatusBadRequest, err.Error())
 		return
 	}
-	if body.Bot != "" {
-		if _, err := g.AddBot(bot.name, bot.level); err != nil {
-			httpError(w, http.StatusBadRequest, err.Error())
-			return
-		}
-	}
 	r := &room{game: g, conns: make(map[*client]struct{}), debug: s.debug}
 	s.mu.Lock()
 	s.rooms[g.ID] = r