feat: Add a Telegram notification tester

Dockerfile.test

@@ -0,0 +1,17 @@
+# Use the official Python image from the Docker Hub
+FROM python:3.11-slim
+
+# Set the working directory
+WORKDIR /app
+
+# Copy the requirements file into the container
+COPY requirements.txt .
+
+# Install the dependencies
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy the rest of the application code
+COPY . .
+
+# Run the test script
+CMD ["python", "test_telegram_notifier.py"]