refactor: Move files into src directory

Refactored project structure: Moved all Python modules to a src/ directory, updated imports accordingly. Added new environment variables to Dockerfile and docker-compose.yml. Removed Dockerfile.test and TODO file.

src/book_crossfit.py

@@ -0,0 +1,35 @@
+#!/usr/bin/env python3
+
+import logging
+import traceback
+import asyncio
+from crossfit_booker import CrossFitBooker
+
+if __name__ == "__main__":
+    # Configure logging once at script startup
+    logging.basicConfig(
+        level=logging.DEBUG,  # Change to DEBUG for more detailed logs
+        format='%(asctime)s - %(levelname)s - %(message)s',
+        handlers=[
+            logging.FileHandler("log/crossfit_booking.log"),
+            logging.StreamHandler()
+        ]
+    )
+
+    # Reduce the verbosity of the requests library's logging
+    logging.getLogger("requests").setLevel(logging.WARNING)
+    logging.info("Logging enhanced with request library noise reduction")
+
+    # Create an instance of the CrossFitBooker class
+    booker = CrossFitBooker()
+
+    # Attempt to log in to the CrossFit booking system
+    # TODO: Make a authentication during running request to not get kicked out
+    if not booker.login():
+        # If login fails, log the error and exit the script
+        logging.error("Failed to login - Traceback: %s", traceback.format_exc())
+        exit(1)
+
+    # Start the continuous booking loop
+    booker.run()
+    logging.info("Script completed")