requirements.txt changed, auth.py file added for user management, announcement_service_spec.yaml changed since api definition did not load, main.py changes to access new mongoDB collection, patchnotes_controller.py expendet so save user last login

gen/openapi_server/utils/auth.py

@@ -0,0 +1,15 @@
+import jwt
+from connexion import ProblemException
+from flask import request
+
+def current_user_id() -> str:
+    """Liest die User-UUID (sub) aus dem Bearer-JWT im Authorization-Header."""
+    auth = request.headers.get("Authorization", "")
+    if not auth.startswith("Bearer "):
+        raise ProblemException(status=401, detail="Missing Bearer token")
+
+    token = auth.split()[1]
+
+    # ↓ Für Demo ohne Signaturprüfung – produktiv natürlich verifizieren!
+    payload = jwt.decode(token, options={"verify_signature": False})
+    return payload["sub"]