Добавлена кнопка Назад на всех этапах записи (услуга→мастер→дата→время→подтверждение)

app/keyboards/back.py

@@ -0,0 +1,5 @@
+from aiogram.types import InlineKeyboardButton
+
+
+def get_back_button():
+    return [InlineKeyboardButton(text="◀ Назад", callback_data="go_back")]

app/keyboards/masters.py

@@ -2,9 +2,13 @@ from aiogram.types import InlineKeyboardMarkup, InlineKeyboardButton
 from app.config import MASTERS
 
 
+from app.keyboards.back import get_back_button
+
+
 def get_masters_keyboard():
     buttons = [
         [InlineKeyboardButton(text=name, callback_data=key)]
         for key, name in MASTERS.items()
     ]
+    buttons.append(get_back_button())
     return InlineKeyboardMarkup(inline_keyboard=buttons)

app/keyboards/services.py

@@ -2,9 +2,13 @@ from aiogram.types import InlineKeyboardMarkup, InlineKeyboardButton
 from app.config import SERVICES
 
 
+from app.keyboards.back import get_back_button
+
+
 def get_services_keyboard():
     buttons = [
         [InlineKeyboardButton(text=name, callback_data=key)]
         for key, name in SERVICES.items()
     ]
+    buttons.append(get_back_button())
     return InlineKeyboardMarkup(inline_keyboard=buttons)