[FIX] Apply pre-commit formatting

Author: MayankDew08

pyaptamer/utils/_protein_words.py

@@ -1,4 +1,3 @@
-
 """Protein word extraction utilities.
 
 Core behavior mirrors the AptaTrans vocabulary pre-processing pattern:
@@ -8,8 +7,10 @@
 """
 
 from collections import Counter
+
 from pyaptamer.utils._base import filter_words
 
+
 def compute_protein_words(
     protein_sequences,
     min_k: int = 1,