style: sort imports in chunking tests

Author: codebybilal18

tests/test_chunking.py

@@ -12,8 +12,8 @@
 import pytest
 
 from app.config import ChunkStrategy, RetrievalConfig
-from app.generation.providers import count_tokens
 from app.db.models import ExtractionMethod
+from app.generation.providers import count_tokens
 from app.ingest.chunk import build_chunks, chunk_fixed, chunk_recursive
 from app.ingest.parse import Heading, ParsedPage
 
@@ -274,8 +274,8 @@ def test_zero_overlap_config_carries_nothing(recursive_config):
 
 
 def test_carried_overlap_respects_the_token_budget(recursive_config):
-    from app.ingest.chunk import _tail_within_budget
     from app.generation.providers import count_tokens
+    from app.ingest.chunk import _tail_within_budget
 
     text = " ".join(f"word{i}" for i in range(500)) + "."
     for budget in (10, 45, 90):