feat: Dockerize application and add MySQL logging

This commit introduces Docker and Docker Compose to containerize the application and orchestrate it with a MySQL database.

Key changes include:
- Added a `Dockerfile` to create a container for the Python bot.
- Created a `docker-compose.yml` file to manage the bot and MySQL services.
- Added a `modules/database.py` module to handle database connections and logging with SQLAlchemy.
- Integrated request logging into all command handlers.
- Updated `requirements.txt` with necessary dependencies for MySQL.
- Updated `.env` and `.gitignore` to manage database credentials securely.
- Updated `Readme.md` with instructions on how to run the application using Docker Compose.

modules/printer.py

@@ -2,11 +2,14 @@ import os
 import requests
 from telegram import Update
 from telegram.ext import ContextTypes, ConversationHandler, CommandHandler, MessageHandler, filters
+from modules.database import log_request
 
 # Estado
 ESPERANDO_ARCHIVO = 1
 
 async def start_print(update: Update, context: ContextTypes.DEFAULT_TYPE) -> int:
+    user = update.effective_user
+    log_request(user.id, user.username, "print", update.message.text)
     await update.message.reply_text("🖨️ **Servicio de Impresión**\n\nPor favor, envíame el archivo (PDF, DOCX o Imagen) que deseas imprimir/enviar.")
     return ESPERANDO_ARCHIVO