chore(types): add pyright strict config and fix resulting errors

Adds pyrightconfig.json (strict, Python 3.11) covering cli.py,
claude_bottle/, and tests/. Fixes the 49 strict-mode errors:

- Type DockerBottle.teardown as Callable[[], None].
- ResolvedEnv default_factory uses parameterized list[str] / dict[str, str].
- Erase BottleBackend generics at the registry boundary
  (BottleBackend[Any, Any]) since selection is runtime-driven and
  callers use the unparameterized interface.
- DockerBottleBackend.launch returns Generator[DockerBottle, None, None];
  @contextmanager now flags Iterator returns as deprecated.
- Sidestep cli.list submodule shadowing builtins.list in main()'s argv
  annotation via an aliased re-import in cli/__init__.py.
- Cast cfg[...] results in test_pipelock_yaml at the dict[str, object]
  boundary.
- Annotate write_fixture's fn parameter and _manifest_with_runtime's
  return type.

claude_bottle/cli/__init__.py

@@ -9,13 +9,15 @@ import sys
 
 from ..log import Die, die
 from ._common import PROG
+from . import list as _list_mod
 from .cleanup import cmd_cleanup
 from .edit import cmd_edit
 from .info import cmd_info
 from .init import cmd_init
-from .list import cmd_list
 from .start import cmd_start
 
+cmd_list = _list_mod.cmd_list
+
 COMMANDS = {
     "cleanup": cmd_cleanup,
     "edit": cmd_edit,