style: apply ruff format across the tree; refresh moved-module doc refs

Bring 14 files that predated the ruff-format run into line with the configured
formatter (line-length 100); provably formatting-only (ruff format of HEAD ==
working tree, and ruff format is semantics-preserving). Also refresh two
lim.image.tor._KEYGEN_SCRIPT doc references in tor_harness.py to
lim.image.initramfs.keygen after the module moved.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

tests/unit/test_cli.py

@@ -24,9 +24,7 @@ def test_every_command_dispatches_to_its_function(monkeypatch):
 def test_needs_root_command_requests_root(monkeypatch):
     escalated = []
     monkeypatch.setattr(system, "ensure_root", lambda: escalated.append(True))
-    monkeypatch.setitem(
-        cli.COMMANDS, "backup", Command(lambda: None, "d", needs_root=True)
-    )
+    monkeypatch.setitem(cli.COMMANDS, "backup", Command(lambda: None, "d", needs_root=True))
     cli.main(["--type", "backup", "--auto-confirm"])
     assert escalated == [True]