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/app/projects/page.tsx

@@ -35,15 +35,23 @@ function ProjectsPageContent() {
   const [showForm, setShowForm] = useState(false);
   const [editingProject, setEditingProject] = useState<ProjectWithContext | null>(null);
 
-  useEffect(() => { fetchOverview(); }, [fetchOverview]);
-  useEffect(() => { fetchRequirements(); }, [fetchRequirements]);
-  useEffect(() => { fetchPlans(); }, [fetchPlans]);
-  useEffect(() => { fetchDevTasks(); }, [fetchDevTasks]);
-  useEffect(() => { fetchTestCases(); }, [fetchTestCases]);
-
   const allProjects = useMemo(() => flattenProjects(overview), [overview]);
   const allVersions = useMemo(() => flattenVersions(overview), [overview]);
 
+  useEffect(() => { fetchOverview(); }, [fetchOverview]);
+  useEffect(() => {
+    overview.forEach((product) => {
+      void fetchRequirements({ productId: product.id });
+    });
+  }, [fetchRequirements, overview]);
+  useEffect(() => {
+    allVersions.forEach((version) => {
+      void fetchPlans({ versionId: version.id });
+      void fetchDevTasks({ versionId: version.id });
+      void fetchTestCases({ versionId: version.id });
+    });
+  }, [allVersions, fetchDevTasks, fetchPlans, fetchTestCases]);
+
   const versionProgressMap = useMemo(
     () => buildVersionProgressMap(allVersions, plans, requirements, devTasks, testCases),
     [allVersions, plans, requirements, devTasks, testCases],