feat：优化增量执行、工具调用容错与评测体系

app/actions/update.py

@@ -1,5 +1,6 @@
 """在大屏 JSON 副本上按路径更新组件属性，用于后端校验动作能否执行"""
 
+import json
 from copy import deepcopy
 
 from app.actions.base import BaseActionHandler
@@ -7,6 +8,30 @@ from app.schemas.actions import UpdateAction
 from app.schemas.screen import Screen, ScreenNode
 
 
+def same_value(node: ScreenNode, action: UpdateAction) -> bool:
+    """字段已经存在、并且值和要写入的完全一样（按 JSON 比较，1 和 1.0、true 和 1 不算一样）"""
+    if action.section == "name":
+        current = node.name
+    else:
+        current = getattr(node, action.section)
+        for segment in action.path:
+            if (
+                isinstance(current, dict)
+                and isinstance(segment, str)
+                and segment in current
+            ) or (
+                isinstance(current, list)
+                and type(segment) is int
+                and segment < len(current)
+            ):
+                current = current[segment]
+            else:
+                return False
+    return json.dumps(current, sort_keys=True) == json.dumps(
+        action.value, sort_keys=True
+    )
+
+
 def fit_existing_path(node: ScreenNode, action: UpdateAction) -> UpdateAction:
     """字段定义允许的路径在组件中可能还没有中间对象（例如未开启过的数值标签）
 
@@ -17,7 +42,11 @@ def fit_existing_path(node: ScreenNode, action: UpdateAction) -> UpdateAction:
         return action
     current = getattr(node, action.section) or {}
     for index, segment in enumerate(action.path[:-1]):
-        if isinstance(current, dict) and isinstance(segment, str) and segment not in current:
+        if (
+            isinstance(current, dict)
+            and isinstance(segment, str)
+            and segment not in current
+        ):
             rest = action.path[index + 1 :]
             if not all(isinstance(item, str) for item in rest):
                 return action
@@ -29,7 +58,11 @@ def fit_existing_path(node: ScreenNode, action: UpdateAction) -> UpdateAction:
             )
         if isinstance(current, dict) and isinstance(segment, str):
             current = current[segment]
-        elif isinstance(current, list) and type(segment) is int and segment < len(current):
+        elif (
+            isinstance(current, list)
+            and type(segment) is int
+            and segment < len(current)
+        ):
             current = current[segment]
         else:
             return action