feat: Initial project structure

- Creates the initial project structure for the Talía bot, including the `app` and `app/modules` directories.
- Adds placeholder files for the core application logic, modules, and configuration.
- Includes a `Dockerfile` and `docker-compose.yml` for containerization.
- Adds a `requirements.txt` file with the necessary dependencies.
- Creates a `tasks.md` file to track development progress.

app/calendar.py

@@ -0,0 +1,17 @@
+# app/calendar.py
+
+def get_available_slots():
+    """
+    Fetches available calendar slots.
+    """
+    print("Fetching available slots from Google Calendar...")
+    # TODO: Implement Google Calendar API integration
+    return []
+
+def create_event(summary, start_time, end_time, attendees):
+    """
+    Creates a new event in the calendar.
+    """
+    print(f"Creating event: {summary}")
+    # TODO: Implement Google Calendar API integration
+    return None