style: ruff's own fixes, mechanically applied

`ruff check .` had gone unrun long enough to report 568 errors, which is the
same as having no linter: the next real finding would have been invisible in the
noise. This is the 521 it fixes by itself, in 173 files, and nothing else — the
98 it cannot fix are the next commit.

What actually changed: import sorting (225), imports nobody used (87, none of
them a re-export — no `__init__.py` is touched, which was the one way this could
have broken an import elsewhere), `datetime.timezone.utc` to `datetime.UTC` (69)
and `asyncio.TimeoutError` to `TimeoutError` (18), both plain aliases on the 3.12
this project requires, `Optional[X]` to `X | None` (24), and f-strings with
nothing to interpolate (19).

Checked rather than assumed: every module in the three packages still imports,
and the suite is 2893 passed — the same count, test for test, as the merge
before it.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

1 files changed, 11 insertions, 11 deletions

diff --git a/packages/meshbay-node/tests/test_node_status.py b/packages/meshbay-node/tests/test_node_status.py
index 897be33..7a27623 100644
--- a/packages/meshbay-node/tests/test_node_status.py
+++ b/packages/meshbay-node/tests/test_node_status.py
@@ -12,22 +12,22 @@ from pathlib import Path
 
 import pytest
 from cryptography.hazmat.primitives.asymmetric.ed25519 import Ed25519PrivateKey
-
-from conftest import one_root
 from meshbay_common.adminop import (
-    OP_ROOT_ADD, OP_ROOT_REMOVE, OP_GROUP_ATTACH, OP_MEMBER_UNPIN,
+    OP_MEMBER_UNPIN,
     admin_transcript,
 )
-from meshbay_node.transport.quic_server import Denylist
 from meshbay_common.crypto import pk_to_b64
 from meshbay_common.join import ROLE_OPERATOR
 from meshbay_common.protocol import MNP
 from meshbay_node import ops
 from meshbay_node.indexer.group_index import GroupIndex
-from meshbay_node.roster import open_roster
 from meshbay_node.roots import RootSet
+from meshbay_node.roster import open_roster
+from meshbay_node.transport.quic_server import Denylist
 from meshbay_node.transport.webrtc_server import WebRTCPeerSession
 
+from conftest import one_root
+
 GROUP = "g" * 32
 
 
@@ -260,7 +260,7 @@ async def test_add_root_creates_directory_and_returns_info(tmp_path):
     shared.mkdir()
     new_dir = tmp_path / "new_root"
 
-    from meshbay_node.config import NodeConfig, GroupConfig, RootSpec
+    from meshbay_node.config import GroupConfig, NodeConfig, RootSpec
     cfg = GroupConfig(id=GROUP, name="test", roots=[
         RootSpec(path=str(shared), name="shared", kind="generic", writable=True),
     ])
@@ -300,7 +300,7 @@ async def test_remove_root_requires_at_least_one_remaining(tmp_path):
     shared = tmp_path / "shared"
     shared.mkdir()
 
-    from meshbay_node.config import GroupConfig, RootSpec, NodeConfig
+    from meshbay_node.config import GroupConfig, NodeConfig, RootSpec
     cfg = GroupConfig(id=GROUP, name="test", roots=[
         RootSpec(path=str(shared), name="shared", kind="generic", writable=True),
     ])
@@ -333,7 +333,7 @@ async def test_removing_a_writable_root_is_allowed(tmp_path):
     d1.mkdir()
     d2.mkdir()
 
-    from meshbay_node.config import GroupConfig, RootSpec, NodeConfig
+    from meshbay_node.config import GroupConfig, NodeConfig, RootSpec
     cfg = GroupConfig(id=GROUP, name="test", roots=[
         RootSpec(path=str(d1), name="incoming", kind="generic", writable=True),
         RootSpec(path=str(d2), name="shared", kind="generic", writable=False),
@@ -369,7 +369,7 @@ async def test_update_root_rewrites_the_flags_in_node_toml(tmp_path):
     d1 = tmp_path / "media"
     d1.mkdir()
 
-    from meshbay_node.config import GroupConfig, RootSpec, NodeConfig
+    from meshbay_node.config import GroupConfig, NodeConfig, RootSpec
     cfg = GroupConfig(id=GROUP, name="test", roots=[
         RootSpec(path=str(d1), name="media", kind="generic", writable=False),
     ])
@@ -420,7 +420,7 @@ async def test_update_root_replaces_a_legacy_upload_line(tmp_path):
     d1 = tmp_path / "media"
     d1.mkdir()
 
-    from meshbay_node.config import GroupConfig, RootSpec, NodeConfig
+    from meshbay_node.config import GroupConfig, NodeConfig, RootSpec
     cfg = GroupConfig(id=GROUP, name="test", roots=[
         RootSpec(path=str(d1), name="media", kind="generic", writable=True),
     ])
@@ -452,7 +452,7 @@ async def test_remove_root_succeeds_with_two_roots(tmp_path):
     d1.mkdir()
     d2.mkdir()
 
-    from meshbay_node.config import GroupConfig, RootSpec, NodeConfig
+    from meshbay_node.config import GroupConfig, NodeConfig, RootSpec
     cfg = GroupConfig(id=GROUP, name="test", roots=[
         RootSpec(path=str(d1), name="dir1", kind="generic", writable=True),
         RootSpec(path=str(d2), name="dir2", kind="generic", writable=False),