feat: 优化部分代码及提示词

app/processor/nodes/action_node.py

@@ -1,4 +1,4 @@
-"""将简单修改或新增规划转换为动作列表"""
+"""将简单修改或包含新增、调整的规划转换为动作列表"""
 
 import json
 
@@ -10,7 +10,7 @@ from app.actions.plan import assemble_plan_actions, plan_block_reason, plan_mate
 from app.clients.llm import get_llm
 from app.processor.base import BaseNode
 from app.processor.state import QueryState
-from app.prompt.action import ACTION_SYSTEM_PROMPT
+from app.prompt.action import build_action_prompt
 from app.schemas.action_validation import ActionValidationError, schema_errors
 from app.schemas.actions import ActionBatch, AddAction
 
@@ -93,7 +93,13 @@ class ActionNode(BaseNode):
         try:
             result = await llm_client.ainvoke(
                 [
-                    SystemMessage(content=ACTION_SYSTEM_PROMPT),
+                    SystemMessage(
+                        content=build_action_prompt(
+                            state["requirement"],
+                            state.get("screen_plan"),
+                            repairing=state.get("repair_plan") is not None,
+                        )
+                    ),
                     HumanMessage(content=json.dumps(payload, ensure_ascii=False)),
                 ]
             )
@@ -215,9 +221,29 @@ 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["change_scope"].needs_planning = True
+            state["screen_plan"] = ScreenPlan(
+                goal="向右移动 50px",
+                design_summary="调整图表位置",
+                layout_description="保留尺寸，向右移动",
+                components=[
+                    {
+                        "plan_id": "sales-position",
+                        "disposition": "modify",
+                        "target_id": "sales-chart",
+                        "purpose": "调整位置",
+                        "layout": {"x": 150, "y": 200, "width": 400, "height": 300},
+                    }
+                ],
+            )
         node = ActionNode()
         final_state = await node.process(state)
-        if "--add" in sys.argv and final_state.get("actions") is not None:
+        if (
+            state.get("screen_plan") is not None
+            and final_state.get("actions") is not None
+        ):
             final_state = ValidatorNode().process(final_state)
         print(
             json.dumps(