Initial commit: Notes Manager App (notes.braetter-int.de)

- Python/Flask Backend
- SQLAlchemy Models (notes, tasks, templates, users)
- Gunicorn + Nginx Deploy-Konfiguration
- Static Assets (CSS/JS)
- Jinja2 Templates

.gitignore

@@ -0,0 +1,8 @@
+.venv/
+__pycache__/
+*.pyc
+*.pyo
+instance/
+*.db
+.env
+*.bak