Update Dockerfile to copy all files instead of just requirements.txt for improved build context and flexibility.

Dockerfile

@@ -15,7 +15,7 @@ RUN apt-get update -qq && \
 
 WORKDIR /app
 
-COPY requirements.txt .
+COPY . .
 
 RUN python -m venv /venv && \
     /venv/bin/pip install --no-cache-dir --upgrade pip wheel setuptools && \