fix: Changing Dockefile to be more maintainable

Author: DimitriZC

Dockerfile

@@ -45,13 +45,8 @@ COPY requirements.txt   .
 RUN pip install --no-cache-dir --no-index --find-links /app/wheelhouse -r requirements.txt && \
     rm -rf /app/wheelhouse
 
-# Copy application source code 
-COPY app/main.py            ./
-COPY app/databases/         ./databases/
-COPY app/models/            ./models/
-COPY app/routes/            ./routes/
-COPY app/schemas/           ./schemas/
-COPY app/services/          ./services/
+# Copy entire app package with correct ownership
+COPY --chown=fastapi:fastapi app/ ./app/
 
 # https://rules.sonarsource.com/docker/RSPEC-6504/