feat(telegram_bot): Add simplified team registration format with output options

- Add support for simplified team_reg callback format (team_reg:1, team_reg:3, team_reg:5)
- Implement direct count parsing from callback data without intermediate steps
- Add output method selection UI with JSON file and team.json options
- Add custom count input handler for flexible registration quantities (1-50)
- Improve user experience by reducing callback navigation steps
- Set user state flag for awaiting custom count input

telegram_bot.py

@@ -3342,6 +3342,43 @@ class ProvisionerBot:
         action = data[1] if len(data) > 1 else ""
         value = data[2] if len(data) > 2 else ""
         
+        # 处理简化格式: team_reg:1, team_reg:3, team_reg:5, team_reg:custom
+        if action.isdigit():
+            # team_reg:1 -> 直接是数量
+            count = int(action)
+            # 显示输出方式选择
+            keyboard = [
+                [
+                    InlineKeyboardButton("📄 JSON 文件", callback_data=f"team_reg:output:json:{count}"),
+                ],
+                [
+                    InlineKeyboardButton("📥 添加到 team.json", callback_data=f"team_reg:output:team:{count}"),
+                ],
+            ]
+            reply_markup = InlineKeyboardMarkup(keyboard)
+            
+            await query.edit_message_text(
+                f"<b>⚙️ 配置完成</b>\n\n"
+                f"注册数量: {count} 个\n\n"
+                f"请选择输出方式:",
+                parse_mode="HTML",
+                reply_markup=reply_markup
+            )
+            return
+        
+        if action == "custom":
+            # team_reg:custom -> 自定义数量
+            await query.edit_message_text(
+                "<b>📝 自定义数量</b>\n\n"
+                "请发送数量 (1-50):\n"
+                "直接回复一个数字即可\n\n"
+                "例如: <code>20</code>",
+                parse_mode="HTML"
+            )
+            # 设置等待输入状态
+            context.user_data["team_waiting_count"] = True
+            return
+        
         if action == "count":
             if value == "custom":
                 await query.edit_message_text(