feat: implement Phase 7 (Course Player v2, Furigana, XP System, Integrated Vocab)

app/Filament/Admin/Resources/Lessons/Schemas/LessonForm.php

@@ -41,6 +41,12 @@ class LessonForm
                     ->default(0),
                 Textarea::make('metadata')
                     ->columnSpanFull(),
+                Select::make('vocabularies')
+                    ->relationship('vocabularies', 'word')
+                    ->multiple()
+                    ->searchable()
+                    ->preload()
+                    ->label('Focus Vocabularies'),
             ]);
     }
 }