feat: refine quick wins workflow and calendar layout

app/routes/settings.py

@@ -232,6 +232,42 @@ def delete_quick_win(quick_win_id: int):
     return redirect(url_for("settings.quick_wins"))
 
 
+@bp.route("/quick-wins/<int:quick_win_id>/update", methods=["POST"])
+@login_required
+def update_quick_win(quick_win_id: int):
+    quick_win = QuickWin.query.get_or_404(quick_win_id)
+    quick_task_config = get_quick_task_config()
+
+    title = (request.form.get("title") or "").strip()
+    effort = request.form.get("effort") or ""
+
+    if len(title) < 2:
+        flash("Quick-Wins brauchen einen Titel mit mindestens 2 Zeichen.", "error")
+        return redirect(url_for("settings.quick_wins"))
+
+    if len(title) > 160:
+        flash("Quick-Win-Titel dürfen maximal 160 Zeichen lang sein.", "error")
+        return redirect(url_for("settings.quick_wins"))
+
+    if effort not in quick_task_config:
+        flash("Bitte wähle einen gültigen Aufwand.", "error")
+        return redirect(url_for("settings.quick_wins"))
+
+    duplicate = (
+        QuickWin.query.filter(QuickWin.id != quick_win.id, QuickWin.title == title, QuickWin.active.is_(True))
+        .first()
+    )
+    if duplicate:
+        flash("Diesen Quick-Win gibt es bereits.", "error")
+        return redirect(url_for("settings.quick_wins"))
+
+    quick_win.title = title
+    quick_win.effort = effort
+    db.session.commit()
+    flash(f"Quick-Win „{quick_win.title}“ wurde aktualisiert.", "success")
+    return redirect(url_for("settings.quick_wins"))
+
+
 @bp.route("/users/<int:user_id>/toggle-admin", methods=["POST"])
 @login_required
 def toggle_admin(user_id: int):