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/web/lib/domain-api.ts

@@ -8,7 +8,7 @@ import type { Requirement, RequirementStatus, SourceType } from './requirement';
 import type { TaskCategory } from './task-category';
 import type { TaskWorklog } from './task-worklog';
 import type { TestCase, TestCaseStatus } from './test-case';
-import type { VersionPlan, VersionPlanLog, VersionPlanRequirementCoverage } from './version-plan';
+import type { PlanTask, VersionPlan, VersionPlanLog, VersionPlanRequirementCoverage } from './version-plan';
 import type { WorkActivity, WorkActivityCategory, WorkActivityDraft, WorkActivitySourceType } from './work-activity';
 
 export interface RootProject {
@@ -117,6 +117,9 @@ interface DomainRequirementRow {
   creatorId?: string | null;
   creatorName?: string | null;
   creator?: { id?: string | null; name?: string | null } | null;
+  productOwnerId?: string | null;
+  productOwnerName?: string | null;
+  productOwner?: { id?: string | null; name?: string | null } | null;
   createdAt?: string | Date | null;
 }
 
@@ -168,6 +171,7 @@ interface DomainVersionPlanRow {
   actualStartAt?: string | Date | null;
   completedAt?: string | Date | null;
   resultUrl?: string | null;
+  tasks?: unknown;
   requirementCoverage?: unknown;
   logs?: unknown;
   createdAt?: string | Date | null;
@@ -594,6 +598,7 @@ function toRequirementPayload(data: Partial<Requirement>) {
     ...(data.sourceTarget !== undefined && { sourceTarget: data.sourceTarget }),
     ...(data.platforms !== undefined && { platform: data.platforms.join(',') }),
     ...(data.priority !== undefined && { priority: priorityToNumber(data.priority) }),
+    ...(data.productOwner !== undefined && { productOwnerId: data.productOwner }),
   };
 }
 
@@ -613,6 +618,7 @@ function normalizeRequirement(row: DomainRequirementRow): Requirement {
     status: toRequirementStatus(row.status),
     priority: toPriority(row.priority),
     effort: 'M',
+    productOwner: row.productOwner?.name ?? row.productOwnerName ?? row.productOwnerId ?? '',
     creator: row.creator?.name ?? row.creatorName ?? row.creatorId ?? '',
     createdAt: isoString(row.createdAt),
   };
@@ -669,6 +675,7 @@ function toVersionPlanPayload(data: Partial<VersionPlan>) {
     ...(data.actualStartAt !== undefined && { actualStartAt: data.actualStartAt }),
     ...(data.completedAt !== undefined && { completedAt: data.completedAt }),
     ...(data.resultUrl !== undefined && { resultUrl: data.resultUrl }),
+    ...(data.tasks !== undefined && { tasks: data.tasks }),
     ...(data.linkedRequirementIds !== undefined && { linkedRequirementIds: data.linkedRequirementIds }),
     ...(data.requirementCoverage !== undefined && { requirementCoverage: data.requirementCoverage }),
     ...(data.logs !== undefined && { logs: data.logs }),
@@ -686,7 +693,7 @@ function normalizeVersionPlan(row: DomainVersionPlanRow): VersionPlan {
     startTime: isoString(row.expectedStartAt),
     endTime: isoString(row.expectedEndAt),
     status: toPlanStatus(row.status),
-    tasks: [],
+    tasks: asArray<PlanTask>(row.tasks),
     completedRequirementIds: requirementCoverage
       .filter((item) => item?.status === 'completed')
       .map((item) => item.requirementId)