feat(socialnetwork): enhance folder and video management with user visibility options

- Added functionality to manage selected users for adult folders and erotic videos, allowing for more granular visibility control.
- Introduced new endpoints and methods in the SocialNetworkController and SocialNetworkService to handle selected users.
- Updated the frontend components to include input fields for selected users in CreateFolderDialog, EditImageDialog, and EroticPicturesView.
- Enhanced the routing to support fetching erotic folders and videos by username, improving user experience in profile views.

backend/models/associations.js

@@ -25,6 +25,8 @@ import ImageVisibilityUser from './community/image_visibility_user.js';
 import FolderImageVisibility from './community/folder_image_visibility.js';
 import ImageImageVisibility from './community/image_image_visibility.js';
 import FolderVisibilityUser from './community/folder_visibility_user.js';
+import EroticVideoImageVisibility from './community/erotic_video_image_visibility.js';
+import EroticVideoVisibilityUser from './community/erotic_video_visibility_user.js';
 import GuestbookEntry from './community/guestbook.js';
 import Forum from './forum/forum.js';
 import Title from './forum/title.js';
@@ -242,6 +244,17 @@ export default function setupAssociations() {
     otherKey: 'imageId'
   });
 
+  EroticVideo.belongsToMany(ImageVisibilityType, {
+    through: EroticVideoImageVisibility,
+    foreignKey: 'eroticVideoId',
+    otherKey: 'visibilityTypeId'
+  });
+  ImageVisibilityType.belongsToMany(EroticVideo, {
+    through: EroticVideoImageVisibility,
+    foreignKey: 'visibilityTypeId',
+    otherKey: 'eroticVideoId'
+  });
+
   Folder.belongsToMany(ImageVisibilityUser, {
     through: FolderVisibilityUser,
     foreignKey: 'folderId',
@@ -253,6 +266,19 @@ export default function setupAssociations() {
     otherKey: 'folderId'
   });
 
+  EroticVideo.belongsToMany(User, {
+    through: EroticVideoVisibilityUser,
+    foreignKey: 'eroticVideoId',
+    otherKey: 'userId',
+    as: 'selectedVisibilityUsers'
+  });
+  User.belongsToMany(EroticVideo, {
+    through: EroticVideoVisibilityUser,
+    foreignKey: 'userId',
+    otherKey: 'eroticVideoId',
+    as: 'visibleEroticVideos'
+  });
+
   // Guestbook related associations
   User.hasMany(GuestbookEntry, { foreignKey: 'recipientId', as: 'receivedEntries' });
   User.hasMany(GuestbookEntry, { foreignKey: 'senderId', as: 'sentEntries' });