Refactor configuration and security features for improved development experience

- Updated the .env.example file to reflect a development environment setup with enhanced secret key requirements and local host settings.
- Modified the Docker Compose configuration to enhance security with read-only settings and no-new-privileges options.
- Updated requirements.txt to pin package versions for better dependency management.
- Enhanced the FastAPI application to include dynamic OpenAPI and documentation URLs based on the environment.
- Implemented session versioning in JWT tokens to improve security and user session management.
- Added new validation for user roles and password strength in schemas.
- Improved email sending logic to handle recipient lists more robustly and added logging for SMTP operations.
- Updated dashboard and profile templates to reflect new features and improve user experience.

.gitea/workflows/docker-build.yml

@@ -25,6 +25,12 @@ jobs:
       - name: Repository auschecken
         uses: actions/checkout@v4
 
+      - name: Python-Abhängigkeiten prüfen (pip-audit)
+        run: |
+          python -m pip install --upgrade pip
+          pip install pip-audit
+          pip-audit -r requirements.txt
+
       - name: Docker Buildx einrichten
         uses: docker/setup-buildx-action@v3