chore(task): 归档工作台任务优先重构

.trellis/tasks/archive/2026-05/05-29-portal-task-first-redesign/implement.jsonl

@@ -0,0 +1,2 @@
+{"file":".trellis/spec/hyb-oa/frontend-react-vite-design.md","reason":"Frontend task-first OA page rules, PC operation list density, shared command bar/table conventions, and required validation commands."}
+{"file":".trellis/spec/hyb-oa/approval-workflow.md","reason":"Approval list behavior, action boundaries, confirmation requirements, and role-safe workflow task handling."}