feat: checkpoint device agent runtime milestones

runtime/planner.py

@@ -1,11 +1,14 @@
 from __future__ import annotations
 
 from dataclasses import dataclass, field
-from typing import Any
+from typing import TYPE_CHECKING, Any
 
 from core.models import Scene
 from runtime.context import TaskContext
 
+if TYPE_CHECKING:
+    from world.models import WorldState
+
 
 @dataclass(frozen=True)
 class PlannedStep:
@@ -22,6 +25,7 @@ class Planner:
         goal: str,
         scene: Scene,
         context: TaskContext,
+        world: "WorldState | None" = None,
     ) -> list[PlannedStep]:
         if context.step_results:
             return []
@@ -37,4 +41,3 @@ class Planner:
         return bool(context.step_results) and all(
             result.success for result in context.step_results
         )
-