feat(工作台): 细化计划进展工时证据

关键改动：

- 支持需求覆盖和调研方向开始工作记录

- 日报按计划记录开始时间和进度下次开始时间计算证据

- 更新版本编辑校验、项目展示和 workflow 说明

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

apps/web/lib/version-plan.test.ts

@@ -146,6 +146,15 @@ test('updates requirement coverage, syncs legacy completed ids, and creates a pl
   const next = updateRequirementCoverage!(plan({
     linkedRequirementIds: ['r1'],
     completedRequirementIds: ['r1'],
+    requirementCoverage: [
+      {
+        requirementId: 'r1',
+        status: 'completed',
+        currentWorkStartedAt: '2026-06-29T09:30:00.000Z',
+        updatedAt: '2026-06-28T12:00:00.000Z',
+        updatedBy: 'PM',
+      },
+    ],
   }), {
     requirementId: 'r1',
     status: 'partial',
@@ -159,26 +168,63 @@ test('updates requirement coverage, syncs legacy completed ids, and creates a pl
 
   assert.deepEqual(next.completedRequirementIds, []);
   assert.equal(next.requirementCoverage?.[0]?.status, 'partial');
+  assert.equal(next.requirementCoverage?.[0]?.currentWorkStartedAt, undefined);
   assert.equal(next.logs?.length, 1);
   assert.equal(next.logs?.[0]?.type, 'requirement_progress');
   assert.equal(next.logs?.[0]?.actor, 'PM');
   assert.equal(next.logs?.[0]?.requirementCode, 'QY0001');
   assert.equal(next.logs?.[0]?.completedContent, '完成移动端主流程');
   assert.equal(next.logs?.[0]?.remainingContent, 'PC 端筛选规则未完成');
+  assert.equal(next.logs?.[0]?.workStartedAt, '2026-06-29T09:30:00.000Z');
 });
 
-test('validates requirement coverage record drafts by status', () => {
+test('starts requirement coverage work while preserving existing progress', () => {
+  const startRequirementCoverageWork = (versionPlan as any).startRequirementCoverageWork as undefined | ((item: VersionPlan, input: {
+    requirementId: string;
+    startedAt: string;
+    updatedBy: string;
+  }) => any);
+  assert.equal(typeof startRequirementCoverageWork, 'function');
+
+  const next = startRequirementCoverageWork!(plan({
+    requirementCoverage: [
+      {
+        requirementId: 'r1',
+        status: 'partial',
+        completedContent: '完成主流程',
+        remainingContent: '补充异常状态',
+        updatedAt: '2026-06-28T12:00:00.000Z',
+        updatedBy: 'PM',
+      },
+    ],
+  }), {
+    requirementId: 'r1',
+    startedAt: '2026-06-29T09:30:00.000Z',
+    updatedBy: 'PM',
+  });
+
+  assert.equal(next.requirementCoverage?.[0]?.status, 'partial');
+  assert.equal(next.requirementCoverage?.[0]?.completedContent, '完成主流程');
+  assert.equal(next.requirementCoverage?.[0]?.remainingContent, '补充异常状态');
+  assert.equal(next.requirementCoverage?.[0]?.currentWorkStartedAt, '2026-06-29T09:30:00.000Z');
+  assert.equal(next.requirementCoverage?.[0]?.updatedBy, 'PM');
+});
+
+test('validates requirement coverage record drafts by started work session', () => {
   const canSaveRequirementCoverageDraft = (versionPlan as any).canSaveRequirementCoverageDraft as undefined | ((
     status: string,
     completedContent?: string,
     remainingContent?: string,
+    workStartedAt?: string,
   ) => boolean);
   assert.equal(typeof canSaveRequirementCoverageDraft, 'function');
 
-  assert.equal(canSaveRequirementCoverageDraft!('completed'), true);
-  assert.equal(canSaveRequirementCoverageDraft!('partial', '完成主流程', ''), false);
-  assert.equal(canSaveRequirementCoverageDraft!('partial', '完成主流程', '补充异常状态'), true);
-  assert.equal(canSaveRequirementCoverageDraft!('not_started'), false);
+  assert.equal(canSaveRequirementCoverageDraft!('completed'), false);
+  assert.equal(canSaveRequirementCoverageDraft!('completed', undefined, undefined, '2026-06-29T09:30:00.000Z'), true);
+  assert.equal(canSaveRequirementCoverageDraft!('partial', '完成主流程', '', '2026-06-29T09:30:00.000Z'), false);
+  assert.equal(canSaveRequirementCoverageDraft!('partial', '完成主流程', '补充异常状态'), false);
+  assert.equal(canSaveRequirementCoverageDraft!('partial', '完成主流程', '补充异常状态', '2026-06-29T09:30:00.000Z'), true);
+  assert.equal(canSaveRequirementCoverageDraft!('not_started', undefined, undefined, '2026-06-29T09:30:00.000Z'), false);
 });
 
 test('hides coverage record action after a requirement is completed', () => {