feat: saxo history

backend/services/database.py

@@ -6116,3 +6116,13 @@ def get_saxo_snapshots(symbol: Optional[str] = None, date_from: Optional[str] =
     rows = conn.execute(query, params).fetchall()
     conn.close()
     return [dict(r) for r in rows]
+
+
+def get_saxo_snapshot_symbols() -> List[Dict[str, Any]]:
+    conn = get_conn()
+    rows = conn.execute("""
+        SELECT symbol, COUNT(*) AS rows_count, MIN(snapshot_date) AS first_date, MAX(snapshot_date) AS last_date
+        FROM saxo_option_snapshots GROUP BY symbol ORDER BY symbol
+    """).fetchall()
+    conn.close()
+    return [dict(r) for r in rows]