ALTER TABLE community.vocab_course_lesson
ADD COLUMN IF NOT EXISTS learning_goals JSONB,
ADD COLUMN IF NOT EXISTS core_patterns JSONB,
ADD COLUMN IF NOT EXISTS grammar_focus JSONB,
ADD COLUMN IF NOT EXISTS speaking_prompts JSONB,
ADD COLUMN IF NOT EXISTS practical_tasks JSONB;

INSERT INTO community.vocab_grammar_exercise_type (name, description) VALUES
  ('dialog_completion', 'Dialogergänzung'),
  ('situational_response', 'Situative Antwort'),
  ('pattern_drill', 'Muster-Drill'),
  ('reading_aloud', 'Lautlese-Übung'),
  ('speaking_from_memory', 'Freies Sprechen')
ON CONFLICT (name) DO NOTHING;
