fix(types,client): use tuple syntax in isinstance, remove no-op proto import

- _types.py: replace isinstance(v, int | float) and isinstance(py_val, list | tuple)
  with tuple-of-types form (int, float) and (list, tuple); identical semantics on
  all Python versions, eliminates repeated Copilot false-positive lint hits
- client.py: remove no-op 'from coordinode._proto import __init__ as _setup_path'
  (_proto/__init__.py has no sys.path side effects; import served no purpose)

Author: polaz

coordinode/_types.py

@@ -33,13 +33,11 @@ def to_property_value(py_val: PyValue) -> Any:
         pv.string_value = py_val
     elif isinstance(py_val, bytes):
         pv.bytes_value = py_val
-    elif isinstance(py_val, list | tuple):
-        # Homogeneous float list → Vector; mixed/str list → PropertyList
-        # isinstance() with X|Y union syntax is valid from Python 3.10+ (PEP 604).
-        # This package requires Python >=3.11, so no tuple-of-types workaround needed.
+    elif isinstance(py_val, (list, tuple)):
+        # Homogeneous float list → Vector; mixed/str list → PropertyList.
         # bool is a subclass of int, so exclude it explicitly — [True, False] must
         # not be serialised as a Vector of 1.0/0.0 but as a PropertyList.
-        if py_val and all(isinstance(v, int | float) and not isinstance(v, bool) for v in py_val):
+        if py_val and all(isinstance(v, (int, float)) and not isinstance(v, bool) for v in py_val):
             vec = Vector(values=[float(v) for v in py_val])
             pv.vector_value.CopyFrom(vec)
         else:

coordinode/client.py

@@ -13,7 +13,6 @@
 import grpc
 import grpc.aio
 
-from coordinode._proto import __init__ as _setup_path  # noqa: F401 — path fix
 from coordinode._types import (
     PyValue,
     dict_to_props,