feat(产品方案): 优化计划卡片展示和排序

apps/web/lib/version-plan.ts

@@ -78,6 +78,26 @@ export interface VersionPlan {
 
 export type PlanType = VersionPlan['type'];
 
+function getPlanCreatedAtTime(plan: VersionPlan): number {
+  const time = new Date(plan.createdAt).getTime();
+  return Number.isFinite(time) ? time : 0;
+}
+
+function getPlanIdTime(plan: VersionPlan): number {
+  const match = /^plan-(\d+)$/.exec(plan.id);
+  if (!match) return 0;
+  const time = Number(match[1]);
+  return Number.isFinite(time) ? time : 0;
+}
+
+export function sortPlansNewestFirst(plans: VersionPlan[]): VersionPlan[] {
+  return [...plans].sort((a, b) => {
+    const createdDiff = getPlanCreatedAtTime(b) - getPlanCreatedAtTime(a);
+    if (createdDiff !== 0) return createdDiff;
+    return getPlanIdTime(b) - getPlanIdTime(a);
+  });
+}
+
 export function calcPlanProgress(tasks?: PlanTask[]): number {
   if (!tasks || tasks.length === 0) return 0;
   const completed = tasks.filter((t) => t.status === 'completed').length;