feat: 计划任务清单+进度联动+与我相关工作台

- 计划新增任务清单：调研支持任务CRUD，进度=完成数/总数
- 产品方案/UI：通过关联需求勾选进度，全部完成提示提交
- 版本胶囊条动态进度：调研/产品方案/UI 阶段独立计算
- 版本状态显示具体阶段名（调研中/产品设计中/UI设计中）
- 计划开始日期≤今天自动进入"进行中"，版本状态联动
- 与我相关重写为左右布局：左侧分组导航，右侧任务/需求勾选
- 计划支持超期原因校验（结束日期超版本截止）
- 修复列表overflow裁剪问题、计划耗时当天至少1天

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/web/lib/version-plan.ts

@@ -1,3 +1,11 @@
+export type PlanTaskStatus = 'pending' | 'in_progress' | 'completed';
+
+export interface PlanTask {
+  id: string;
+  title: string;
+  status: PlanTaskStatus;
+}
+
 export interface VersionPlan {
   id: string;
   versionId: string;
@@ -7,6 +15,8 @@ export interface VersionPlan {
   startTime: string;
   endTime: string;
   status: 'pending' | 'in_progress' | 'completed';
+  tasks?: PlanTask[];
+  completedRequirementIds?: string[];
   linkedRequirementIds?: string[];
   resultType?: 'link' | 'file';
   resultUrl?: string;
@@ -21,11 +31,24 @@ export interface VersionPlan {
 
 export type PlanType = VersionPlan['type'];
 
+export function calcPlanProgress(tasks?: PlanTask[]): number {
+  if (!tasks || tasks.length === 0) return 0;
+  const completed = tasks.filter((t) => t.status === 'completed').length;
+  return Math.round((completed / tasks.length) * 100);
+}
+
+export function calcLinkedReqProgress(linkedIds?: string[], completedIds?: string[]): number {
+  if (!linkedIds || linkedIds.length === 0) return 0;
+  const done = (completedIds || []).filter((id) => linkedIds.includes(id)).length;
+  return Math.round((done / linkedIds.length) * 100);
+}
+
 export function calcPlanDuration(start: string, end: string): { days: number; hours: number } {
   const s = new Date(start).getTime();
   const e = new Date(end).getTime();
-  if (isNaN(s) || isNaN(e) || e <= s) return { days: 0, hours: 0 };
-  const totalDays = Math.ceil((e - s) / (1000 * 60 * 60 * 24));
+  if (isNaN(s) || isNaN(e) || e < s) return { days: 0, hours: 0 };
+  const diff = Math.ceil((e - s) / (1000 * 60 * 60 * 24));
+  const totalDays = Math.max(1, diff); // 当天开始当天结束至少1天
   return { days: totalDays, hours: totalDays * 8 };
 }
 
@@ -35,13 +58,19 @@ export function formatDuration(days: number, _hours: number): string {
 }
 
 export function calcTotalDuration(plans: VersionPlan[]): string {
-  const completedOrActive = plans.filter((p) => p.status !== 'pending');
-  if (completedOrActive.length === 0) return '0天';
+  const today = new Date().toISOString().slice(0, 10);
+  const activePlans = plans.filter((p) => p.status !== 'pending' || p.startTime <= today);
+  if (activePlans.length === 0) return '0天';
 
-  const intervals = completedOrActive.map((p) => ({
-    start: new Date(p.startTime).getTime(),
-    end: p.completedAt ? new Date(p.completedAt).getTime() : new Date(p.endTime).getTime(),
-  })).filter((i) => i.end > i.start).sort((a, b) => a.start - b.start);
+  const intervals = activePlans.map((p) => {
+    const start = new Date(p.startTime).getTime();
+    const end = p.completedAt
+      ? new Date(p.completedAt).getTime()
+      : p.startTime <= today
+        ? new Date(today).getTime()
+        : new Date(p.startTime).getTime();
+    return { start, end };
+  }).filter((i) => i.end > i.start).sort((a, b) => a.start - b.start);
 
   if (intervals.length === 0) return '0天';