feat：简化部分代码

app/actions/plan.py

@@ -22,9 +22,9 @@ from app.schemas.screen_plan import PlanComponent
 def plan_block_reason(state: QueryState) -> str | None:
     """检查规划是否在当前支持范围内，不支持时返回原因"""
 
-    # 获取当前规划和可选的组件目录，后续分别检查操作范围与新增物料能力
+    # 获取当前规划和组件目录，后续分别检查操作范围与新增物料能力
     plan = state["screen_plan"]
-    resources = state.get("component_resources")
+    resources = state["component_resources"]
 
     # 如果需求尚未明确，不能根据规划直接生成动作
     if state["requirement"].needs_clarification:
@@ -47,12 +47,8 @@ def plan_block_reason(state: QueryState) -> str | None:
     if not additions and not modifications and not removals and not plan.canvas_changes:
         return "规划未包含可执行的组件或画布修改"
 
-    # 新增组件依赖真实物料目录，仅调整已有组件时不强制要求目录存在
-    if additions and (resources is None or resources.status != "resolved"):
-        return "组件目录尚未就绪"
-
     # 收集目录支持的类型，拒绝规划虚构前端未注册的新增组件类型
-    supported = {item.type for item in resources.components} if resources else set()
+    supported = {item.type for item in resources.components}
     if any(item.component_type not in supported for item in additions):
         return "规划中的新增类型未在组件目录中找到"
 
@@ -179,8 +175,7 @@ def assemble_plan_actions(state: QueryState, batch: ActionBatch) -> ActionBatch:
     """用物料默认配置补全新增节点，模型显式提供的字段优先"""
 
     # 按物料编号建立索引，动作通过 component_key 选择具体预设
-    resources = state.get("component_resources")
-    materials = {item.key: item for item in resources.components} if resources else {}
+    materials = {item.key: item for item in state["component_resources"].components}
 
     # 复制整批动作，补全配置时不改动调用方提供的动作对象
     result = batch.model_copy(deep=True)
@@ -328,8 +323,7 @@ def validate_plan_actions(
     }
 
     # 物料按 key 索引，用于核对新增组件的类型和示例数据标记
-    resources = state.get("component_resources")
-    materials = {item.key: item for item in resources.components} if resources else {}
+    materials = {item.key: item for item in state["component_resources"].components}
     seen: set[str] = set()  # 已关联的新增规划编号
     modified: set[str] = set()  # 已覆盖的修改目标
 
@@ -439,6 +433,6 @@ def validate_plan_result(
                     code="scope_error", message=f"执行后的画布属性与规划不一致: {key}"
                 )
             )
-            
+
     # 返回布局及画布结果错误，空列表表示这些最终值符合规划
     return errors