feat: 添加 Action 协议

app/schemas/actions/resize.py

@@ -0,0 +1,25 @@
+"""设置组件的绝对尺寸"""
+
+from typing import Literal, Self
+
+from pydantic import Field, model_validator
+
+from app.schemas.screen import PositiveNumber
+
+from .base import BaseAction
+
+
+class ResizeAction(BaseAction):
+    type: Literal["resize"] = "resize"
+    width: PositiveNumber | None = Field(
+        default=None, description="目标宽度，单位 px，省略或 null 表示保持原值"
+    )
+    height: PositiveNumber | None = Field(
+        default=None, description="目标高度，单位 px，省略或 null 表示保持原值"
+    )
+
+    @model_validator(mode="after")
+    def require_size(self) -> Self:
+        if self.width is None and self.height is None:
+            raise ValueError("resize 至少提供 width 或 height")
+        return self