feat: 接通 Planner → Action → Validator

app/schemas/actions/__init__.py

@@ -4,13 +4,16 @@ from typing import Annotated
 
 from pydantic import Field, TypeAdapter
 
+from .add import AddAction
 from .base import ActionModel, BaseAction
 from .move import MoveAction
 from .resize import ResizeAction
 from .update import UpdateAction
 
 # 按 type 选择对应模型，不维护重复的操作名称映射
-Action = Annotated[MoveAction | ResizeAction | UpdateAction, Field(discriminator="type")]
+Action = Annotated[
+    AddAction | MoveAction | ResizeAction | UpdateAction, Field(discriminator="type")
+]
 action_adapter = TypeAdapter(Action)
 
 
@@ -19,6 +22,12 @@ class ActionBatch(ActionModel):
 
 
 __all__ = [
-    "Action", "ActionBatch", "BaseAction", "MoveAction", "ResizeAction",
-    "UpdateAction", "action_adapter",
+    "Action",
+    "ActionBatch",
+    "AddAction",
+    "BaseAction",
+    "MoveAction",
+    "ResizeAction",
+    "UpdateAction",
+    "action_adapter",
 ]