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/components/test-case/TestCaseTab.tsx

@@ -63,11 +63,11 @@ export function TestCaseTab({
   const { categories, fetchCategories } = useTaskCategoryStore();
 
   useEffect(() => {
-    if (!scopedVersionCases) fetchTestCases();
-  }, [fetchTestCases, scopedVersionCases]);
+    if (!scopedVersionCases) fetchTestCases({ versionId });
+  }, [fetchTestCases, scopedVersionCases, versionId]);
   useEffect(() => {
-    if (!scopedVersionBugs) fetchBugs();
-  }, [fetchBugs, scopedVersionBugs]);
+    if (!scopedVersionBugs) fetchBugs({ versionId });
+  }, [fetchBugs, scopedVersionBugs, versionId]);
   useEffect(() => { fetchCategories(); }, [fetchCategories]);
 
   const reqIdSet = useMemo(() => new Set(requirementIds), [requirementIds]);