fix: correct Manifest/ManifestIndex usage and add missing type annotations in tests

- test_docker_launch_committed_image: replace Manifest.from_json_obj
  (nonexistent) with ManifestIndex.from_json_obj; pass manifest= arg
  to DockerBottlePlan constructor (required by BottlePlan base class)
- test_macos_container_launch: cast SimpleNamespace stubs to their
  expected types (BottleSpec, GitGatePlan, EgressPlan) in _build_plan;
  add str type annotations to fake_build parameter signatures
- test_macos_container_util: add str type annotations to fake_build_image
  parameter signatures

tests/unit/test_docker_launch_committed_image.py

@@ -16,16 +16,14 @@ from bot_bottle.backend.docker import launch as launch_mod
 from bot_bottle.backend.docker.bottle_plan import DockerBottlePlan
 from bot_bottle.egress import EgressPlan
 from bot_bottle.git_gate import GitGatePlan
-from bot_bottle.manifest import Manifest
+from bot_bottle.manifest import ManifestIndex
 
 
 _SLUG = "dev-abc12"
 _COMMITTED_TAG = f"bot-bottle-committed-{_SLUG}:latest"
 _DEFAULT_IMAGE = "bot-bottle-claude:latest"
 
-
-def _manifest() -> Manifest:
-    return Manifest.from_json_obj({
+_IDX = ManifestIndex.from_json_obj({
     "bottles": {"dev": {}},
     "agents": {"demo": {"skills": [], "prompt": "", "bottle": "dev"}},
 })
@@ -34,7 +32,7 @@ def _manifest() -> Manifest:
 def _plan(tmp: str) -> DockerBottlePlan:
     stage = Path(tmp)
     spec = BottleSpec(
-        manifest=_manifest(),
+        manifest=_IDX,
         agent_name="demo",
         copy_cwd=False,
         user_cwd=tmp,
@@ -42,6 +40,7 @@ def _plan(tmp: str) -> DockerBottlePlan:
     )
     return DockerBottlePlan(
         spec=spec,
+        manifest=_IDX.load_for_agent("demo"),
         stage_dir=stage,
         git_gate_plan=GitGatePlan(
             slug=_SLUG,

tests/unit/test_macos_container_launch.py

@@ -10,8 +10,11 @@ from typing import cast
 from unittest.mock import patch
 
 from bot_bottle.agent_provider import AgentProvisionPlan
+from bot_bottle.backend import BottleSpec
 from bot_bottle.backend.macos_container import launch
 from bot_bottle.backend.macos_container.bottle_plan import MacosContainerBottlePlan
+from bot_bottle.egress import EgressPlan
+from bot_bottle.git_gate import GitGatePlan
 from bot_bottle.manifest import ManifestIndex
 
 _MANIFEST = ManifestIndex.from_json_obj({
@@ -269,11 +272,11 @@ class TestMacosContainerLaunchArgv(unittest.TestCase):
 
 def _build_plan(stage_dir: Path) -> MacosContainerBottlePlan:
     return MacosContainerBottlePlan(
-        spec=SimpleNamespace(),
+        spec=cast(BottleSpec, SimpleNamespace()),
         manifest=_MANIFEST,
         stage_dir=stage_dir,
-        git_gate_plan=SimpleNamespace(upstreams=()),
-        egress_plan=SimpleNamespace(),
+        git_gate_plan=cast(GitGatePlan, SimpleNamespace(upstreams=())),
+        egress_plan=cast(EgressPlan, SimpleNamespace()),
         supervise_plan=None,
         agent_provision=AgentProvisionPlan(
             template="claude",
@@ -303,7 +306,7 @@ class TestMacosContainerLaunchCommittedImage(unittest.TestCase):
         plan = _build_plan(self.stage_dir)
         calls = []
 
-        def fake_build(image, context, *, dockerfile=""):
+        def fake_build(image: str, context: str, *, dockerfile: str = "") -> None:
             calls.append((image, context, dockerfile))
 
         with patch.object(
@@ -324,7 +327,7 @@ class TestMacosContainerLaunchCommittedImage(unittest.TestCase):
         plan = _build_plan(self.stage_dir)
         calls = []
 
-        def fake_build(image, context, *, dockerfile=""):
+        def fake_build(image: str, context: str, *, dockerfile: str = "") -> None:
             calls.append((image, context, dockerfile))
 
         with patch.object(

tests/unit/test_macos_container_util.py

@@ -79,7 +79,7 @@ resolver #2
         )
         dockerfile_text = ""
 
-        def fake_build_image(image_tag, context, *, dockerfile=""):
+        def fake_build_image(image_tag: str, context: str, *, dockerfile: str = "") -> None:
             nonlocal dockerfile_text
             with open(dockerfile, encoding="utf-8") as f:
                 dockerfile_text = f.read()