added crud for categories entity

bot/handlers/categories.py

@@ -0,0 +1,31 @@
+import logging
+from telebot import types
+from database.models import Categories
+
+logger = logging.getLogger(__name__)
+
+
+def register(bot):
+    @bot.message_handler(func=lambda message: message.text == "Show Categories")
+    def get_categories(message):
+        try:
+            data = Categories.getAllCategories()
+            if data:
+                markup = types.InlineKeyboardMarkup(row_width=2)
+
+                for row in data:
+                    btn = types.InlineKeyboardButton(
+                        f"{row[1]} | id#{row[0]}", callback_data=f"category_{row[0]}")
+                    markup.add(btn)
+
+                # add button for creating a new category
+                markup.add(types.InlineKeyboardButton(
+                    "➕ Create New Category", callback_data="create_category"))
+
+                bot.send_message(
+                    message.chat.id, "Here is the data:", reply_markup=markup)
+            else:
+                bot.reply_to(message, "No data found.")
+        except Exception as e:
+            logger.error(f"Error in 'Show Categories' handler: {e}")
+            bot.reply_to(message, "Sorry, an error occurred.")