Imports to top of file (ruff rule now). Refactor a couple of import cycles by implementing clear hierarchy of modules.

tests/test_files_auth.py

@@ -8,6 +8,7 @@ from uuid import uuid4
 
 import pytest
 import pytest_asyncio
+from Crypto.Hash import MD4
 from sanic import Sanic
 
 from cista import auth, config, session, watching
@@ -29,8 +30,6 @@ def _ntlm_type3(
     username: str, password: str, domain: str, challenge: bytes
 ) -> dict[str, str]:
     """Build an NTLMv2 Type 3 message for testing."""
-    from Crypto.Hash import MD4
-
     # NT hash
     nt_hash = MD4.new(password.encode("utf-16le")).digest()
     # NTLMv2 hash

tests/test_tokens.py

@@ -1,6 +1,7 @@
-from pathlib import Path
+from pathlib import Path, PurePath
 from uuid import uuid4
 
+import msgspec
 import pytest
 import pytest_asyncio
 from sanic import Sanic
@@ -11,10 +12,6 @@ from cista.auth import bp as auth_bp
 
 
 def _persist_config():
-    from pathlib import PurePath
-
-    import msgspec
-
     def enc_hook(obj):
         if isinstance(obj, PurePath):
             return obj.as_posix()