Meyd-908

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| Sprint | Task (owner) | Description | |--------|--------------|-------------| | | FE‑1 (UI) | Add BulkTagButton and BulkTagModal components, wire up UI state. | | | FE‑2 (Store) | Implement bulk‑update action/reducer, update selectors. | | | BE‑1 (API) | Scaffold POST /bulk-tags endpoint, add permission guard. | | Sprint 2 | BE‑2 (Logic) | Implement bulk insert, audit logging, error aggregation. | | | DB‑1 | Add/verify DB indexes, run migration if needed. | | | FE‑3 (Tests) | Write unit tests for components & store. | | Sprint 3 | BE‑3 (Tests) | Write unit & integration tests for the endpoint. | | | E2E‑1 | Add Cypress scenario covering happy path, partial failure, undo. | | | Docs‑1 | Update user guide & release notes with “Bulk Tag” feature. | | Sprint 4 | Feature‑Flag rollout | Enable flag for internal users, gather feedback, then widen to all. | | | Monitoring | Add logs/metrics, set up dashboard alerts for error spikes. | | | Release & QA | Final QA sign‑off, deploy to production. | MEYD-908