refactor: Align codebase configuration with user's .env file

This commit refactors the application's configuration handling to perfectly match the structure and variable names provided by the user in their `.env` file. This resolves multiple critical discrepancies that would have prevented the bot from functioning correctly.

-   **Update `config.py`:** The file `talia_bot/config.py` has been completely rewritten to load environment variables using the names specified by the user (e.g., `TELEGRAM_OWNER_CHAT_ID`, `GOOGLE_CALENDAR_ID`, `VIKUNJA_BASE_URL`).

-   **Update Printer Logic:** The `talia_bot/modules/printer.py` module has been updated to use the new `PRINTER_EMAIL` variable and the specific IMAP credentials (`IMAP_USER`, `IMAP_PASSWORD`), rather than reusing SMTP credentials.

-   **Update `.env.example`:** The `.env.example` template file has been rewritten to serve as an accurate and well-documented guide that matches the user's `.env` structure.

This change ensures that the bot is now fully synchronized with the user's deployment environment, resolving previous inconsistencies and improving the overall robustness of the configuration.

talia_bot/config.py

@@ -1,55 +1,51 @@
 # talia_bot/config.py
-# Este archivo se encarga de cargar todas las variables de entorno y configuraciones del bot.
-# Las variables de entorno son valores que se guardan fuera del código por seguridad (como tokens y llaves API).
+# This file loads all environment variables and bot configurations.
+# Environment variables are stored securely outside the code (e.g., in a .env file).
 
 import os
 from dotenv import load_dotenv
 from pathlib import Path
 
-# Cargar variables de entorno desde el archivo .env en la raíz del proyecto
+# Load environment variables from the .env file in the project root
 env_path = Path(__file__).parent.parent / '.env'
 load_dotenv(dotenv_path=env_path)
 
-# Token del bot de Telegram (obtenido de @BotFather)
+# --- Telegram Configuration ---
 TELEGRAM_BOT_TOKEN = os.getenv("TELEGRAM_BOT_TOKEN")
+ADMIN_ID = os.getenv("TELEGRAM_OWNER_CHAT_ID")  # Renamed for consistency in the code
 
-# ID de chat del dueño del bot (para recibir notificaciones importantes)
-ADMIN_ID = os.getenv("ADMIN_ID")
-
-# Ruta al archivo de credenciales de la cuenta de servicio de Google
+# --- Google Services ---
 GOOGLE_SERVICE_ACCOUNT_FILE = os.getenv("GOOGLE_SERVICE_ACCOUNT_FILE")
 if GOOGLE_SERVICE_ACCOUNT_FILE and not os.path.isabs(GOOGLE_SERVICE_ACCOUNT_FILE):
     GOOGLE_SERVICE_ACCOUNT_FILE = str(Path(__file__).parent.parent / GOOGLE_SERVICE_ACCOUNT_FILE)
+CALENDAR_ID = os.getenv("GOOGLE_CALENDAR_ID")
 
-# ID del calendario de Google que usará el bot
-CALENDAR_ID = os.getenv("CALENDAR_ID")
-
-# URL del webhook de n8n para enviar datos a otros servicios
+# --- Webhooks (n8n) ---
 N8N_WEBHOOK_URL = os.getenv("N8N_WEBHOOK_URL")
-N8N_TEST_WEBHOOK_URL = os.getenv("N8N_TEST_WEBHOOK_URL")
+N8N_TEST_WEBHOOK_URL = os.getenv("N8N_WEBHOOK_TEST_URL")
 
-# Configuración de Vikunja
-VIKUNJA_API_URL = os.getenv("VIKUNJA_API_URL", "https://tasks.soul23.cloud/api/v1")
-VIKUNJA_API_TOKEN = os.getenv("VIKUNJA_API_TOKEN")
-
-# Llave de la API de OpenAI para usar modelos de lenguaje (como GPT)
+# --- AI Core ---
 OPENAI_API_KEY = os.getenv("OPENAI_API_KEY")
+OPENAI_MODEL = os.getenv("OPENAI_MODEL", "gpt-4o-mini")
+DAILY_SUMMARY_TIME = os.getenv("AI_DAILY_SUMMARY_TIME", "08:00")
+TIMEZONE = os.getenv("TIMEZONE", "America/Monterrey")
 
-# Modelo de OpenAI a utilizar (ej. gpt-3.5-turbo, gpt-4)
-OPENAI_MODEL = os.getenv("OPENAI_MODEL", "gpt-3.5-turbo")
+# --- Scheduling ---
+CALENDLY_LINK = os.getenv("CALENDLY_LINK")
 
-# Hora del resumen diario (formato HH:MM)
-DAILY_SUMMARY_TIME = os.getenv("DAILY_SUMMARY_TIME", "07:00")
+# --- Vikunja (Task Management) ---
+VIKUNJA_API_URL = os.getenv("VIKUNJA_BASE_URL")
+VIKUNJA_API_TOKEN = os.getenv("VIKUNJA_TOKEN")
 
-# Enlace de Calendly para agendar citas
-CALENDLY_LINK = os.getenv("CALENDLY_LINK", "https://calendly.com/user/appointment-link")
-
-# Zona horaria por defecto para el manejo de fechas y horas
-TIMEZONE = os.getenv("TIMEZONE", "America/Mexico_City")
-
-# --- PRINT SERVICE ---
+# --- Email Configuration (SMTP / IMAP) ---
 SMTP_SERVER = os.getenv("SMTP_SERVER")
 SMTP_PORT = os.getenv("SMTP_PORT")
 SMTP_USER = os.getenv("SMTP_USER")
-SMTP_PASS = os.getenv("SMTP_PASS")
+SMTP_PASS = os.getenv("SMTP_PASSWORD")
+
 IMAP_SERVER = os.getenv("IMAP_SERVER")
+IMAP_USER = os.getenv("IMAP_USER")
+IMAP_PASS = os.getenv("IMAP_PASSWORD")
+
+# --- Printer (Epson Connect) ---
+PRINTER_EMAIL = os.getenv("PRINTER_EMAIL")