Fix import ordering in example files

Author: nicosuave

examples/multi_format_demo/demo.py

@@ -10,9 +10,10 @@
 The demo queries across all three formats seamlessly.
 """
 
-from sidemantic import SemanticLayer, load_from_directory
 from pathlib import Path
 
+from sidemantic import SemanticLayer, load_from_directory
+
 # Database path
 BASE_DIR = Path(__file__).parent
 DB_PATH = f"duckdb:///{BASE_DIR / 'data' / 'ecommerce.db'}"

examples/multi_format_demo/generate_data.py

@@ -8,9 +8,10 @@
 - orders: Customer orders with product details
 """
 
-import duckdb
-from datetime import datetime, timedelta
 import random
+from datetime import datetime, timedelta
+
+import duckdb
 
 # Create database connection
 con = duckdb.connect("examples/multi_format_demo/data/ecommerce.db")