Phase 2: asset/shot feature parity, task actions, member management

Phase 2 of frontend_tasks.md - close feature gaps between domains:

- Asset user-assignment popover, ported from shot's EditableTaskStatus,
  wired through columns.ts and AssetBrowser.vue.
- Asset column-locking toggle: two-pane frozen-column layout ported
  into AssetsDataTable.vue (adapted for asset's page-scroll layout,
  which has no bounded-height container like shot's).
- Task table row-actions menu (View Details + Reassign only - no
  Delete/Edit, since no backend support exists for either).
- Real select-task/create-task behavior on asset and shot detail
  panels: clicking a task swaps in the actual TaskDetailPanel in
  place; "Add Task" opens a task-type picker that creates real tasks
  via the existing createAssetTask/createShotTask services.
- create-note/upload-reference/publish-version implemented via a
  task-picker that deep-links into TaskDetailPanel's Notes/
  Attachments/Submissions tabs (new initialTab prop), reusing the
  already-working task-level components instead of building three new
  bespoke forms. Also fixed shot's pre-existing dead "Add Note"/
  "Upload Reference" buttons the same way.
- Consolidated ProjectMembersManager.vue and ProjectMemberManagement.vue
  into one component, combining remove-confirmation and approved-user
  filtering with toast feedback and the shared Select/Dialog UI kit.
- Wired ProjectDetailView's "Manage Members" to navigate to the
  project's Settings > Team tab.

Also fixed a bug in this session's own new code: TaskBrowser.vue's
row-click handler is a no-op by design, so the new row-actions menu
needed to emit row-double-click (which actually opens the panel)
instead.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

frontend_tasks.md

@@ -32,15 +32,19 @@ Derived from `frontend_report.md`. Checklist form for tracking progress — chec
 - Fixed two pre-existing backend bugs that 500'd once real data was wired up: `backend/routers/reviews.py` (`joinedload("reviewer")` string → `joinedload(Review.reviewer)`) and `backend/utils/activity.py` (wrong `models.submission` import path → `models.task`).
 - Fixed a pre-existing bug shared by both `ShotDeleteConfirmDialog.vue` and `AssetDeleteConfirmDialog.vue`: their `watch(() => props.open, ...)` lacked `{ immediate: true }`, so the impact-summary section never rendered since the dialog only mounts once already open. Deletion itself worked fine either way — this was purely cosmetic, but it was the whole point of the "impact summary" safety feature.
 
-## Phase 2 — Close feature gaps (asset vs. shot parity)
+## Phase 2 — Close feature gaps (asset vs. shot parity) ✅ (done)
 
-- [ ] Add user-assignment popover to `components/asset/EditableTaskStatus.vue` (shot version at `components/shot/EditableTaskStatus.vue` is the reference)
-- [ ] Add column-locking toggle to `components/asset/AssetTableToolbar.vue` (shot version has `Lock`/`Unlock` toggle)
-- [ ] Add row-actions ("…") menu to `components/task/columns.ts` (shot/asset already have one)
-- [ ] Implement the six stubbed asset detail-panel actions in `components/asset/AssetBrowser.vue:571-574, 680-703`: create task, select task, create note, upload reference, publish version — or hide the affordances until built
-- [ ] Implement shot detail-panel task stubs in `components/shot/ShotBrowser.vue:848-856`: create task, select task
-- [ ] Consolidate `components/project/ProjectMembersManager.vue` and `components/project/ProjectMemberManagement.vue` into one component
-- [ ] Wire the consolidated member-management component into `ProjectDetailView.vue:149-151` ("Manage Members" is currently a no-op)
+- [x] Add user-assignment popover to `components/asset/EditableTaskStatus.vue` — ported from the shot version; wired through `asset/columns.ts` and `AssetBrowser.vue`
+- [x] Add column-locking toggle to `components/asset/AssetTableToolbar.vue` — two-pane frozen-column layout ported into `AssetsDataTable.vue` (adapted for asset's page-scroll layout, no vertical scroll-sync needed unlike shot's bounded-height container)
+- [x] Add row-actions ("…") menu to `components/task/columns.ts` — "View Details" + "Reassign" (no Delete/Edit — no backend `deleteTask`/task-edit-form exists)
+- [x] Implement the asset detail-panel actions in `AssetBrowser.vue`/`AssetDetailPanel.vue`: create task (task-type picker), select task (opens `TaskDetailPanel` in-place), create note/upload reference/publish version (task picker → deep-links into `TaskDetailPanel`'s Notes/Attachments/Submissions tabs via new `initialTab` prop)
+- [x] Implement the same for `ShotBrowser.vue`/`ShotDetailPanel.vue` (also fixed the pre-existing dead "Add Note"/"Upload Reference" buttons there)
+- [x] Consolidate `components/project/ProjectMembersManager.vue` and `components/project/ProjectMemberManagement.vue` into one component (kept `ProjectMemberManagement.vue`, deleted the other) — combined remove-confirmation + approved-user filtering + real avatars from one with toast feedback + shared `Select`/`Dialog` UI-kit from the other
+- [x] Wire the consolidated member-management component into `ProjectDetailView.vue:149-151` — navigates to the project Settings "Team" tab (mirrors the existing `manageTechnicalSpecs` pattern) rather than a duplicate dialog
+
+**Bugs found and fixed during verification (approved mid-implementation):**
+- `GET /assets/{id}` never returned `task_details` (schema didn't even declare the field) — unlike `GET /shots/{id}`, which already did. Broke the asset detail panel's task list and, transitively, every new create-task/note/reference/version feature. Fixed in `backend/schemas/asset.py` + `backend/routers/assets.py`.
+- `TaskBrowser.vue`'s `handleRowClick` is a no-op by design (single click reserved for selection) — the new row-actions menu's "View Details"/"Reassign" needed to emit `row-double-click` instead, which is what actually opens the panel.
 
 ## Phase 3 — Unify controls