Update SQL scripts to include 'created_at' timestamp for exercise types: Modify insert statements in add_vocab_lesson_didactics.sql, create-vocab-courses.sql, and update-vocab-courses-existing.sql to add a 'created_at' column with the current timestamp, enhancing data tracking for vocabulary grammar exercise types.

backend/sql/update-vocab-courses-existing.sql

@@ -110,18 +110,18 @@ CREATE INDEX IF NOT EXISTS vocab_grammar_exercise_progress_exercise_idx
 -- ============================================
 -- 5. Standard-Daten einfügen
 -- ============================================
-INSERT INTO community.vocab_grammar_exercise_type (name, description) VALUES
-    ('gap_fill', 'Lückentext-Übung'),
-    ('multiple_choice', 'Multiple-Choice-Fragen'),
-    ('sentence_building', 'Satzbau-Übung'),
-    ('transformation', 'Satzumformung'),
-    ('conjugation', 'Konjugations-Übung'),
-    ('declension', 'Deklinations-Übung'),
-    ('dialog_completion', 'Dialogergänzung'),
-    ('situational_response', 'Situative Antwort'),
-    ('pattern_drill', 'Muster-Drill'),
-    ('reading_aloud', 'Lautlese-Übung'),
-    ('speaking_from_memory', 'Freies Sprechen')
+INSERT INTO community.vocab_grammar_exercise_type (name, description, created_at) VALUES
+    ('gap_fill', 'Lückentext-Übung', NOW()),
+    ('multiple_choice', 'Multiple-Choice-Fragen', NOW()),
+    ('sentence_building', 'Satzbau-Übung', NOW()),
+    ('transformation', 'Satzumformung', NOW()),
+    ('conjugation', 'Konjugations-Übung', NOW()),
+    ('declension', 'Deklinations-Übung', NOW()),
+    ('dialog_completion', 'Dialogergänzung', NOW()),
+    ('situational_response', 'Situative Antwort', NOW()),
+    ('pattern_drill', 'Muster-Drill', NOW()),
+    ('reading_aloud', 'Lautlese-Übung', NOW()),
+    ('speaking_from_memory', 'Freies Sprechen', NOW())
 ON CONFLICT (name) DO NOTHING;
 
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