chore: normalize schematic.py and apply black to create_schematic signature

Bundles two changes for python/commands/schematic.py:
  1. CRLF → LF line-ending normalization (matches the bulk renormalize
     from the previous commit — was held back here because black would
     also need to re-reformat it).
  2. Black reflow of create_schematic()'s parameter list, which exceeded
     the line length. Pre-existing drift, no logic change.

`git show --ignore-all-space HEAD` shows just the 2-line signature diff.

python/commands/schematic.py

@@ -13,7 +13,9 @@ class SchematicManager:
     """Core schematic operations using kicad-skip"""
 
     @staticmethod
-    def create_schematic(name: str, metadata: Optional[Any] = None, *, path: Optional[str] = None) -> Any:
+    def create_schematic(
+        name: str, metadata: Optional[Any] = None, *, path: Optional[str] = None
+    ) -> Any:
         """Create a new empty schematic from template"""
         try:
             # Determine template path (use template_with_symbols for component cloning support)