Initial GameLog setup

- Laravel 11 + Breeze (dark mode) + Tailwind + Alpine.js
- Migrations: games, genres, platforms, companies, pivots,
  user_games, user_lists, reviews, follows, activities
- Models: Game, Genre, Platform, Company, UserGame, UserList,
  Review, ReviewVote, Activity, User (with gamelog fields)
- IgdbService: OAuth2 token management, search, game fetch,
  popular/new releases, genre filter, cover/screenshot URL helpers
- IGDB credentials in config/services.php (from .env)

.gitattributes

@@ -0,0 +1,11 @@
+* text=auto eol=lf
+
+*.blade.php diff=html
+*.css diff=css
+*.html diff=html
+*.md diff=markdown
+*.php diff=php
+
+/.github export-ignore
+CHANGELOG.md export-ignore
+.styleci.yml export-ignore