fix swagger docs, follow endpoint and get_user_page endpoint

[yusufaygun]

• Added authentication headers and 401 responses to Swagger documentation for all IsAuthenticated endpoints to allow proper testing via Swagger API.
• Updated follow/unfollow endpoint to use username instead of user_id for better client compatibility.
• Added new fields to game bookmark entity in the response of the get_user_page endpoint for client side to handle bookmarks properly

[sonerkuyar]

I didn't understand why did we call the fields like with double under score,
If its not necessary, might be confusing for client apps.

self.assertIn('game__id', bookmark) self.assertIn('game__event', bookmark) self.assertIn('game__site', bookmark) self.assertIn('game__white', bookmark) self.assertIn('game__black', bookmark) self.assertIn('game__result', bookmark) self.assertIn('game__year', bookmark) self.assertIn('game__month', bookmark) self.assertIn('game__day', bookmark) self.assertIn('game__pgn', bookmark)

[yusufaygun]

I didn't understand why did we call the fields like with double under score, If its not necessary, might be confusing for client apps.

self.assertIn('game__id', bookmark) self.assertIn('game__event', bookmark) self.assertIn('game__site', bookmark) self.assertIn('game__white', bookmark) self.assertIn('game__black', bookmark) self.assertIn('game__result', bookmark) self.assertIn('game__year', bookmark) self.assertIn('game__month', bookmark) self.assertIn('game__day', bookmark) self.assertIn('game__pgn', bookmark)

The reason we use double underscores (game__field_name) is that GameBookmark is related to Game via a ForeignKey. To access fields from the Game model, Django ORM requires double underscores to reference related model fields. Without double underscores, fields like id or title would refer to GameBookmark instead of Game. This is a standard Django practice for querying related model fields, therefore we called the fields like that but thanks for review!

[sonerkuyar]

Okey, thanks for answering, I'm merging the PR, LGTM!