style: sort Python imports with isort

Add isort configuration (profile=black, line_length=100) to pyproject.toml,
add isort pre-commit hook, and auto-sort imports across all Python source files.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

python/commands/component_schematic.py

@@ -1,10 +1,11 @@
-from skip import Schematic
+import logging
 import os
 import uuid
-import logging
 from pathlib import Path
 from typing import Optional
 
+from skip import Schematic
+
 logger = logging.getLogger(__name__)
 
 # Import dynamic symbol loader
@@ -350,9 +351,9 @@ class ComponentManager:
 
 if __name__ == "__main__":
     # Example Usage (for testing)
-    from schematic import (
+    from schematic import (  # Assuming schematic.py is in the same directory
         SchematicManager,
-    )  # Assuming schematic.py is in the same directory
+    )
 
     # Create a new schematic
     test_sch = SchematicManager.create_schematic("ComponentTestSchematic")