refactor: Move maintenance scripts to a dedicated maintenance_scripts/ directory.

maintenance_scripts/check_id_range.py

@@ -0,0 +1,21 @@
+import sqlite3
+import os
+
+DB_PATH = os.path.join("database", "umamusume.db")
+
+def check_id_range():
+    conn = sqlite3.connect(DB_PATH)
+    cur = conn.cursor()
+    
+    cur.execute("SELECT MIN(card_id), MAX(card_id) FROM support_cards")
+    min_id, max_id = cur.fetchone()
+    print(f"support_cards card_id range: {min_id} to {max_id}")
+    
+    cur.execute("SELECT MIN(card_id), MAX(card_id) FROM support_events")
+    min_ev_id, max_ev_id = cur.fetchone()
+    print(f"support_events card_id range: {min_ev_id} to {max_ev_id}")
+    
+    conn.close()
+
+if __name__ == "__main__":
+    check_id_range()