feat(asset-ai): generate contextual presentations and drilldown plans

src/server/routes/asset-assistant/execute.ts

@@ -74,6 +74,8 @@ export async function execute(
   }
 
   if (plan.kind === "flow") {
+    result.outcome = result.rows.length ? "complete" : "empty";
+    result.summary = `${plan.start} 至 ${plan.end}，交车 ${result.metrics[0].value} 车次（含替换交车 ${result.metrics[2].value} 车次），还车 ${result.metrics[1].value} 车次。${result.rows.length ? "" : "该范围暂无交退换业务记录。"}替换交车已计入交车，不能重复相加。`;
     result.insights = [
       "交车包含替换交车，不能将二者相加。流转范围按当前账号可见车辆筛选。",
     ];
@@ -107,6 +109,8 @@ export async function execute(
           ) / 10
         : null,
     }));
+    result.summary += ` 对比 ${start} 至 ${end}：${result.comparison.map(m => `${m.label}${m.delta === 0 ? "持平" : `${m.delta > 0 ? "增加" : "减少"} ${Math.abs(m.delta)} 车次`}`).join("，")}。`;
+    result.insights!.push("上述变化是业务车次对比；缺少经营目标、收入和成本依据，不能仅凭车次判断经营改善或变差，也不能据此推断车辆净增长。");
     result.insights!.push(
       `对比上一等长周期 ${start} 至 ${end}；基期为0时不计算增长率。`,
     );
@@ -119,6 +123,7 @@ export function applyAction(
   result: AssistantResult,
 ): QueryPlan {
   const next = structuredClone(plan);
+  if (next.analysis === "briefing" && ["category", "group", "drill", "exception"].includes(action.type)) next.analysis = "distribution";
   switch (action.type) {
     case "clear-filter":
       if (!DIMENSIONS.includes(action.dimension))