feat：简化部分代码

app/processor/nodes/action_node.py

@@ -4,7 +4,7 @@ import json
 
 from langchain_core.exceptions import OutputParserException
 from langchain_core.messages import HumanMessage, SystemMessage
-from pydantic import BaseModel, ValidationError
+from pydantic import ValidationError
 
 from app.actions.plan import assemble_plan_actions, plan_block_reason, plan_materials
 from app.clients.llm import get_llm
@@ -84,12 +84,6 @@ class ActionNode(BaseNode):
             )
             return updated_state
 
-        # 如果未通过动作能力检查，抛出异常，阻止不受支持的需求进入生成流程
-        if not can_generate_actions(state):
-            raise ValueError(
-                "ActionNode 当前只支持无需规划和资源的 move、resize、update、delete、update_canvas 需求"
-            )
-
         # 将输入上下文、结构化需求和修改范围转成字典，作为本次模型输入
         payload = {
             "input_context": state["input_context"].model_dump(mode="json"),
@@ -143,11 +137,13 @@ class ActionNode(BaseNode):
                 ]
             )
 
-            # 将模型对象转成字典，非模型返回值保持原样，统一交给后面的协议校验
-            raw = result.model_dump() if isinstance(result, BaseModel) else result
+            # 响应中没有工具调用时解析器会返回 None
+            if result is None:
+                raise OutputParserException("模型未返回结构化结果")
+            raw = result.model_dump()
 
             # 规划生成的新增节点只保留显式提供的字段，避免模型默认值覆盖物料默认配置
-            if isinstance(result, ActionBatch) and state.get("screen_plan") is not None:
+            if state.get("screen_plan") is not None:
                 # 将原动作对象与序列化结果逐项对应，只调整新增动作的节点数据
                 for source, target in zip(result.actions, raw["actions"]):
                     if isinstance(source, AddAction):
@@ -277,6 +273,7 @@ if __name__ == "__main__":
             )
         # 加 --modify 测试规划到已有组件调整，无需新增物料
         if "--modify" in sys.argv:
+            state = ComponentResourceNode().process(state)
             state["change_scope"].needs_planning = True
             state["screen_plan"] = ScreenPlan(
                 goal="向右移动 50px",