fix(deploy): update package-lock.json for consistent npm ci deployments

- Removed package-lock.json from .gitignore to ensure it is tracked.
- Added locks for backend, frontend, and repo root to maintain version consistency during deployments with npm ci.
- Updated backend with a new script for lockfile synchronization and added a description note.

frontend/src/components/AppNavigation.vue

@@ -27,6 +27,7 @@
           class="menu-icon"
         >&nbsp;</span>
         <span class="mainmenuitem__label">{{ $t(`navigation.${key}`) }}</span>
+        <span v-if="item.disabled" class="menu-lock-badge">18+</span>
         <span v-if="hasTopLevelSubmenu(item)" class="mainmenuitem__caret">&#x25BE;</span>
 
         <!-- Untermenü Ebene 1 -->
@@ -48,6 +49,7 @@
               class="submenu-icon"
             >&nbsp;</span>
             <span>{{ subitem?.label || $t(`navigation.m-${key}.${subkey}`) }}</span>
+            <span v-if="subitem.disabled" class="menu-lock-badge">18+</span>
             <span
               v-if="hasSecondLevelSubmenu(subitem, subkey)"
               class="subsubmenu"
@@ -123,6 +125,7 @@
                   class="submenu-icon"
                 >&nbsp;</span>
                 <span>{{ subsubitem?.label || $t(`navigation.m-${key}.m-${subkey}.${subsubkey}`) }}</span>
+                <span v-if="subsubitem.disabled" class="menu-lock-badge">18+</span>
               </li>
             </ul>
           </li>
@@ -463,6 +466,7 @@ export default {
       event.stopPropagation();
 
       if (item?.disabled) {
+        this.handleDisabledItem(item);
         return;
       }
 
@@ -524,6 +528,16 @@ export default {
       }
 
       this.handleItem(item, event);
+    },
+
+    handleDisabledItem(item) {
+      const isEroticEntry = item?.path?.startsWith('/socialnetwork/erotic')
+        || item?.action === 'openEroticChat';
+
+      if (isEroticEntry) {
+        this.$router.push('/socialnetwork/erotic/access');
+        this.collapseMenus();
+      }
     }
   }
 };
@@ -619,14 +633,14 @@ ul {
 
 .mainmenuitem--disabled,
 .submenu-item--disabled {
-  opacity: 0.55;
-  cursor: not-allowed;
+  opacity: 0.72;
+  cursor: help;
 }
 
 .mainmenuitem--disabled:hover {
   transform: none;
-  background-color: transparent;
-  border-color: transparent;
+  background-color: rgba(248, 162, 43, 0.1);
+  border-color: rgba(248, 162, 43, 0.15);
 }
 
 .mainmenuitem--active {
@@ -645,6 +659,18 @@ ul {
   color: rgba(95, 75, 57, 0.7);
 }
 
+.menu-lock-badge {
+  display: inline-flex;
+  margin-left: 6px;
+  padding: 2px 6px;
+  border-radius: 999px;
+  background: rgba(164, 98, 72, 0.14);
+  color: var(--color-text-secondary);
+  font-size: 0.68rem;
+  font-weight: 800;
+  letter-spacing: 0.04em;
+}
+
 a {
   text-decoration: none;
 }