docs: add product feedback feature plan

docs/TASKS/product-feedback/006-frontend-developer-feedback-review.md

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+# Task: Frontend developer feedback review
+
+## Goal
+
+Add the developer-facing global feedback review area.
+
+## Feature Spec
+
+- `docs/FEATURES/product-feedback.md`
+
+## Scope
+
+- Add routes restricted to the `Developer` role:
+  - `/app/feedback`
+  - `/app/feedback/:id`
+- Add feature-owned views/stores/components under `frontend/src/features/feedback/`.
+- Add a discoverable navigation entry for users with the `Developer` role.
+- The list page is global and shows all reports by default, including final statuses.
+- Support list filters:
+  - type
+  - status
+  - tag
+  - reporter
+  - workspace context
+  - date range
+  - text search
+- Support sorting by:
+  - newest
+  - oldest
+  - last activity
+- Detail page should show:
+  - report details and captured metadata
+  - reporter name/email
+  - current URL/path link
+  - screenshot preview
+  - developer download/open-original screenshot action
+  - comments
+  - activity timeline
+  - status updates
+  - type updates
+  - tag management with suggestions from previously used tags
+- Allow developers to comment on any feedback report.
+- Add English and French locale strings.
+
+## Likely Files
+
+- `frontend/src/router/router.js`
+- `frontend/src/layouts/main/**`
+- `frontend/src/features/feedback/**`
+- `frontend/src/locales/en.json`
+- `frontend/src/locales/fr.json`
+
+## Notes
+
+- Do not add assignment, priority, severity, duplicate linking, or private comments.
+- Keep the review page operational and dense, not a Jira-style board.
+
+## Validation
+
+```bash
+cd frontend
+npm run build
+```
+
+## Done When
+
+- [ ] Only users with the `Developer` role can access `/app/feedback`.
+- [ ] Developers can list all feedback with required filters and sorting.
+- [ ] Developers can open details and inspect metadata.
+- [ ] Developers can preview and download/open screenshots.
+- [ ] Developers can update type, status, and tags.
+- [ ] Tag suggestions use previously used tags.
+- [ ] Developers can comment.
+- [ ] UI strings exist in English and French.
+- [ ] Frontend build passes.