copy src file before install dependencies

Dockerfile

@@ -12,10 +12,12 @@ RUN apt-get update && apt-get install -y \
 # Install PDM
 RUN pip install --no-cache-dir pdm
 
-# Copy dependency files
+# Copy dependency files and source code
 COPY pyproject.toml pdm.lock* ./
+COPY src/ ./src/
+COPY README.md LICENSE ./
 
-# Install dependencies
+# Install dependencies and project
 RUN pdm install --prod --no-lock --no-editable
 
 # Production stage