feat(版本): 完善计划覆盖与工作台待办

关键改动：

- 增加计划日志汇总、需求覆盖草稿校验与对应测试

- 抽取工作台工作项 Hook，补充待办计数能力

- 优化版本详情中计划、任务、测试用例和 Bug 的筛选与展示

Co-Authored-By: Codex GPT-5 <codex@openai.com>

apps/web/lib/workspace-engine.test.ts

@@ -0,0 +1,13 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { getWorkspacePendingCount } from './workspace-engine';
+
+test('getWorkspacePendingCount counts unfinished work items only', () => {
+  const count = getWorkspacePendingCount([
+    { completed: false },
+    { completed: true },
+    { completed: false },
+  ]);
+
+  assert.equal(count, 2);
+});