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/backend/docker/bottle.py

@@ -9,6 +9,7 @@ prompt was provisioned.
 from __future__ import annotations
 
 import subprocess
+from typing import Callable
 
 from .. import Bottle
 
@@ -16,7 +17,12 @@ from .. import Bottle
 class DockerBottle(Bottle):
     """Concrete Bottle for Docker."""
 
-    def __init__(self, container: str, teardown, prompt_path_in_container: str | None):
+    def __init__(
+        self,
+        container: str,
+        teardown: Callable[[], None],
+        prompt_path_in_container: str | None,
+    ):
         self.name = container
         self._teardown = teardown
         self._prompt_path = prompt_path_in_container