Expand IGDB data: collections, game modes, themes, perspectives, videos, websites, age ratings, similar games; add backfill command

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/Models/Game.php

@@ -3,6 +3,7 @@
 namespace App\Models;
 
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
 use Illuminate\Database\Eloquent\Relations\BelongsToMany;
 use Illuminate\Database\Eloquent\Relations\HasMany;
 use Illuminate\Support\Facades\Cache;
@@ -15,14 +16,16 @@ class Game extends Model
     use HasSlug, Searchable;
 
     protected $fillable = [
-        'igdb_id', 'slug', 'title', 'summary', 'cover_url', 'cover_thumb_url',
+        'igdb_id', 'slug', 'title', 'summary', 'storyline', 'cover_url', 'cover_thumb_url',
         'release_date', 'release_year', 'rating_avg', 'rating_count', 'review_count',
-        'library_count', 'status',
+        'library_count', 'status', 'collection_id', 'age_rating_pegi', 'age_rating_esrb',
+        'aggregated_rating', 'aggregated_rating_count', 'similar_game_igdb_ids',
     ];
 
     protected $casts = [
-        'release_date' => 'date',
-        'rating_avg'   => 'decimal:2',
+        'release_date'           => 'date',
+        'rating_avg'             => 'decimal:2',
+        'similar_game_igdb_ids'  => 'array',
     ];
 
     public function getSlugOptions(): SlugOptions
@@ -32,6 +35,11 @@ class Game extends Model
 
     public function getRouteKeyName(): string { return 'slug'; }
 
+    public function collection(): BelongsTo
+    {
+        return $this->belongsTo(Collection::class);
+    }
+
     public function genres(): BelongsToMany
     {
         return $this->belongsToMany(Genre::class, 'game_genre');
@@ -67,6 +75,41 @@ class Game extends Model
         return $this->hasMany(GameComment::class);
     }
 
+    public function gameModes(): BelongsToMany
+    {
+        return $this->belongsToMany(GameMode::class, 'game_game_mode');
+    }
+
+    public function themes(): BelongsToMany
+    {
+        return $this->belongsToMany(Theme::class, 'game_theme');
+    }
+
+    public function playerPerspectives(): BelongsToMany
+    {
+        return $this->belongsToMany(PlayerPerspective::class, 'game_player_perspective');
+    }
+
+    public function videos(): HasMany
+    {
+        return $this->hasMany(GameVideo::class);
+    }
+
+    public function websites(): HasMany
+    {
+        return $this->hasMany(GameWebsite::class);
+    }
+
+    public function similarGames(): BelongsToMany
+    {
+        return $this->belongsToMany(
+            Game::class,
+            'similar_games',
+            'game_id',
+            'similar_game_id'
+        );
+    }
+
     public function toSearchableArray(): array
     {
         return [