Refactor backend and stream processing structure

- Updated Dockerfile in backend to set PYTHONPATH and modify CMD for Django server.
- Changed permissions for multiple Python files in backend to make them executable.
- Adjusted import paths in influxdb_service.py and views.py to reflect new structure.
- Removed unused utils and loggingFactory files from stream_processing.
- Added new utils for logging and flux query building.
- Enhanced error handling and logging in mQTTClientHandler.py.
- Updated docker-compose.yaml to include utils directory for both backend and stream processing services.
- Improved JSON handling in jsonhandler.py with better exception management.

backend/Dockerfile

-# Verwende das neueste Python-Image
 FROM python:latest
 
 # Setze das Arbeitsverzeichnis im Container
 WORKDIR /app
 
+ENV PYTHONPATH="${PYTHONPATH}:/app:/app/utils"
+
 # Kopiere Projektdateien für Abhängigkeitsmanagement
 COPY . .
 
@@ -18,11 +19,8 @@ RUN uv venv .venv && \
 # Installiere die Abhängigkeiten aus pyproject.toml
 RUN uv sync
 
-# Make entrypoint script executable
-RUN chmod +x entrypoint.sh
-
 # Exponiere Port 8000 (für Django)
 EXPOSE 8000
 
-# Use entrypoint script
-CMD ["./entrypoint.sh"]
+# Startbefehl (z. B. für Django-Projekt)
+CMD ["uv", "run", "sh", "-c", ".venv/bin/python manage.py migrate && .venv/bin/python manage.py runserver 0.0.0.0:8000"]
\ No newline at end of file

backend/app/influxdb_service.py

 import os
 from dotenv import load_dotenv
-from utils.fluxQueryBuilder import FluxQueryBuilder
-from utils.influx import InfluxDBHelper
+from ...utils.fluxQueryBuilder import FluxQueryBuilder
+from ...utils.influx import InfluxDBHelper
 
 load_dotenv()
 

backend/app/views.py

@@ -6,7 +6,7 @@ from django.shortcuts import render
 from django.http import JsonResponse
 from django.views.decorators.csrf import ensure_csrf_cookie, csrf_protect
 import json
-from utils.influx import InfluxDBHelper
+from ...utils.influx import InfluxDBHelper
 from dotenv import load_dotenv
 from django.views.decorators.http import require_http_methods
 from django.views.decorators.csrf import csrf_exempt