refactor(data): 收口关系表运行时数据源

- 移除已迁移业务 AppData 运行时 fallback，改走领域 API 和关系表快读
- 补齐需求产品负责人、版本计划任务 JSON 和成员 username 回填迁移
- 统一治理字典入口，并补充 AI provider、数据源契约和领域服务测试

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

apps/server/src/modules/dev-task/dev-task.service.spec.ts

@@ -7,6 +7,9 @@ describe('DevTaskService domain writes', () => {
       record: jest.fn().mockResolvedValue({ id: 'activity-1' }),
     };
     const prisma = {
+      user: {
+        findFirst: createUserFindFirstMock(),
+      },
       version: {
         findUnique: jest.fn(),
       },
@@ -26,6 +29,58 @@ describe('DevTaskService domain writes', () => {
     };
   };
 
+  it('resolves assignee and creator names to user ids before relation writes', async () => {
+    const { prisma, service } = makeService();
+    prisma.user.findFirst = createUserFindFirstMock({ 张三: 'dev-1', 产品经理: 'pm-1' });
+    prisma.version.findUnique.mockResolvedValue({ id: 'version-1', productId: 'product-1', projectId: 'project-1' });
+    prisma.devTask.create.mockResolvedValue({ id: 'task-1', versionId: 'version-1', title: '开发登录' });
+
+    await service.create('version-1', {
+      title: '开发登录',
+      assigneeId: '张三',
+      createdBy: '产品经理',
+    } as any);
+
+    expect(prisma.user.findFirst).toHaveBeenCalledTimes(2);
+    expect(prisma.devTask.create).toHaveBeenCalledWith({
+      data: expect.objectContaining({
+        assigneeId: 'dev-1',
+        creatorId: 'pm-1',
+      }),
+    });
+  });
+
+  it('resolves transfer assignee names before updating foreign keys', async () => {
+    const { prisma, workActivity, service } = makeService();
+    prisma.user.findFirst = createUserFindFirstMock({ 李四: 'dev-2' });
+    prisma.devTask.findFirst.mockResolvedValue({
+      id: 'task-1',
+      versionId: 'version-1',
+      productId: 'product-1',
+      projectId: 'project-1',
+      title: '开发登录',
+      assigneeId: 'dev-1',
+    });
+    prisma.devTask.update.mockResolvedValue({
+      id: 'task-1',
+      versionId: 'version-1',
+      productId: 'product-1',
+      projectId: 'project-1',
+      title: '开发登录',
+      assigneeId: 'dev-2',
+    });
+
+    await service.transfer('version-1', 'task-1', '李四');
+
+    expect(prisma.devTask.update).toHaveBeenCalledWith({
+      where: { id_versionId: { id: 'task-1', versionId: 'version-1' } },
+      data: { assigneeId: 'dev-2' },
+    });
+    expect(workActivity.record).toHaveBeenCalledWith(expect.objectContaining({
+      metadata: expect.objectContaining({ fromAssigneeId: 'dev-1', toAssigneeId: 'dev-2' }),
+    }));
+  });
+
   it('creates dev tasks directly under a version partition', async () => {
     const { prisma, workActivity, service } = makeService();
     prisma.version.findUnique.mockResolvedValue({ id: 'version-1', productId: 'product-1', projectId: 'project-1' });
@@ -151,3 +206,13 @@ describe('DevTaskService domain writes', () => {
     expect(prisma.devTask.update).not.toHaveBeenCalled();
   });
 });
+
+function createUserFindFirstMock(mapping: Record<string, string> = {}) {
+  return jest.fn(({ where }: any) => {
+    const refs = (where?.OR ?? [])
+      .flatMap((condition: Record<string, string>) => Object.values(condition))
+      .filter(Boolean);
+    const ref = refs[0];
+    return Promise.resolve(ref ? { id: mapping[ref] ?? ref } : null);
+  });
+}