Meal-Planner/fix-ui-audit.md

# Fix Plan — UI/UX Audit (Nielsen 10 Heuristics)

## Goal
Resolve the 14 issues (5 P0, 6 P1, 3 P2) from `Review/ui-nielsen-audit.md` in three sprints, ending each sprint with a deployable, demonstrable improvement on `http://100.108.208.56:8082/`.

## Scope boundaries
- **In:** frontend React/TS fixes in `frontend/src/`. Backend one-off data migrations only when required (B8 aisle normalization, B4/Recommended route).
- **Out:** New features (bulk add, keyboard shortcuts, onboarding tour) — those are future work, listed in §Future.
- **Reuse:** `components/ErrorBoundary.tsx` already exists (verified). `components/ui/*` (Button, Card, Select, Input, EmptyState, Badge, Skeleton, LoadingSpinner) are the building blocks — use them, don't roll new ones.
- **Stack confirmed:** React 18 + TS + Vite + Tailwind + react-router-dom 6 + @tanstack/react-query + react-hot-toast + @hello-pangea/dnd + lucide-react + framer-motion. **No new deps** in Sprint 1/2. Sprint 3 may add `react-joyride` only if approved (defer to §Future).

## Conventions
- One commit per task: `fix(ui): <short>` / `feat(ui): <short>` / `refactor(frontend): <short>`.
- Before each commit: `cd frontend && npm run lint && npm run build` (the `build` script runs `tsc` first — type-checks the project).
- After each task, re-screenshot the affected page in the same playwright session and diff against `/tmp/opencode/mp-review/screenshots/`. Save new shots in `/tmp/opencode/mp-review/screenshots/fix-sprintN/`.
- All UI text in sentence case. New copy matches existing `lib/toast.ts` style.
- Type updates go in `frontend/src/types/index.ts`; do not duplicate shapes inline.

---

## Sprint 1 — Stop the bleeding (P0s)

**Goal:** Every P0 bug is gone. Each is independently demoable on the live deployment.

### S1.1 · B1 — RecipeDetail ingredients: drop `.trim()` so unit + name don't fuse
- **File:** `frontend/src/pages/RecipeDetail.tsx:161`
- **Change:** Replace
  ```tsx
  {ing.qty != null && `${ing.qty} ${ing.unit || ''} `.trim()}
  ```
  with
  ```tsx
  {ing.qty != null && `${ing.qty}${ing.unit ? ` ${ing.unit}` : ''}`}
  ```
  followed by a literal `' '` before `{ing.name}`.
- **Verify:** Open `/recipes/eae6591f...` (Black Bean Tacos). Ingredient row reads `2 can Black Beans, Canned` (with space). Re-run `npm run build`.

### S1.2 · B2 — MealDetail ingredients: align field name with backend (`qty`)
- **Files:** `frontend/src/types/index.ts`, `frontend/src/pages/MealDetail.tsx:249-252`
- **Change:**
  1. In `types/index.ts` confirm `MealIngredient` shape; align to backend `qty` / `unit`. If the type currently has `quantity`, rename to `qty` (single source of truth).
  2. In `MealDetail.tsx:249-252`, switch reads to `ing.qty` / `ing.unit`. Keep the existing null-guard so `qty == null` is skipped cleanly.
- **Verify:** Open `/meals/<any>` (e.g. `/meals/f28...` Pork Stir-Fry). Row reads `1 lb Pork Chops, Bone-In` not `lb Pork Chops`. `npm run build` clean.

### S1.3 · B3 — MealDetail cost: fix `$N/A per serving`
- **File:** `frontend/src/pages/MealDetail.tsx:191`
- **Change:**
  ```tsx
  {item.estimated_cost != null
    ? `$${item.estimated_cost.toFixed(2)} per serving`
    : 'No price estimate yet'}
  ```
- **Verify:** Reload `/meals/f28...`. Price line reads either `$X.XX per serving` or `No price estimate yet` — never `$N/A`.

### S1.4 · B4 — `/recommended` blank page: add `*` NotFound + alias
- **Files:** `frontend/src/App.tsx`, new `frontend/src/pages/NotFound.tsx`
- **Change:**
  1. Create `pages/NotFound.tsx` — friendly card with `AlertTriangle` icon, message *"We can't find that page."*, primary `<Button>` → `/`, secondary → back. Reuse `components/ui/EmptyState.tsx` if it fits.
  2. In `App.tsx`:
     - Add `import { Navigate } from 'react-router-dom'`.
     - Insert `<Route path="/recommended" element={<Navigate to="/recipes/recommended" replace />} />`.
     - Append `<Route path="*" element={<NotFound />} />` after the existing routes.
  3. Add a `// TODO(seo): audit email/share links for `/recommended` references` comment.
- **Verify:**
  - Visit `http://100.108.208.56:8082/recommended` → redirects to `/recipes/recommended`, renders the Recommended page.
  - Visit `http://100.108.208.56:8082/this-does-not-exist` → renders NotFound.
  - `npm run build` clean.

### S1.5 · B5 — Mobile dashboard: always show empty meal slots
- **File:** `frontend/src/pages/Dashboard.tsx` (lines ~164, ~219)
- **Change:** Audit every `hidden md:flex` / `hidden md:block` / `hidden md:inline` inside `DayColumn` and the empty-slot JSX. Remove the `hidden` class on the empty-slot CTAs (the `Empty+Generate` placeholder block). For decorative chrome (e.g. day-of-week abbreviations), keep `hidden md:flex` only if there's a separate mobile-friendly label.
- **Verify:** Re-screenshot at 390 px width. Empty slots are tappable; tapping Generate fires the same query as on desktop. `npm run build` clean.

### S1.6 · Sprint 1 verification gate
- `cd frontend && npm run lint && npm run build` → both 0 errors / 0 warnings.
- Re-run playwright walkthrough; capture `screenshots/fix-sprint1/*.png` for: recipe detail (Black Bean Tacos), meal detail (Pork Stir-Fry), `/recommended`, `/this-does-not-exist`, mobile dashboard.
- Manual smoke: tap Generate on a mobile viewport, confirm a new meal lands in the slot.
- **Done when:** All five P0 bugs absent in the re-captured screenshots AND lint/build pass.

---

## Sprint 2 — Trust the data (P1s)

**Goal:** No more silent data corruption in the UI. Every displayed value is consistent across pages and either present-and-correct or explicitly absent.

**Status (2026-06-02):** ✅ All six P1s + the bonus S3.3 mobile stat-grid fix are implemented. `npm run build` green. Ready to commit and deploy.

### S2.1 · B6 — Dashboard `MealCard` title: 2-line clamp instead of 1-line truncate
- **File:** `frontend/src/pages/Dashboard.tsx:87`
- **Change:** Replaced `truncate` with `line-clamp-2` (already used elsewhere in the codebase — Tailwind 3.4+ has it in core). Image shrinks to 40×40 on `<md` (was 56×56 always) to give the title more room. Added `leading-tight` to tighten line-height for 2 lines.
- **Verify:** Trigger Generate on the dashboard. New card title is fully visible across 2 lines (no `B..` truncation). Build clean.

### S2.2 · B7 — MealDetail hero overlap + description clamp + marketing-copy strip
- **Files:** `frontend/src/pages/MealDetail.tsx:168-197`, `frontend/src/lib/utils.ts`
- **Change (3 sub-steps, one commit):**
  1. Hero reworked: image is in normal flow, content panel uses `relative -mt-16 sm:-mt-20` instead of `absolute bottom-0`. Title is in normal flow with the description below it; the gradient now has `pointer-events-none` and goes from `from-black/80` to prevent overlap obscuring.
  2. Description rendered via `cleanDescription(recipe.description)` with `line-clamp-2`.
  3. Client-side trim helper `cleanDescription(input, maxLen=280)` in `lib/utils.ts` with a list of regex patterns that strip spoonacular marketing boilerplate (`Featured In Group…`, `users who liked this recipe also liked…`, `For $X.XX per serving, this recipe covers…`, `It is brought to you by Foodista.`, etc.) and trims to the last sentence within 280 chars.
  4. Raw `recipe.description` moved to a "Notes from source" disclosure below Instructions (using a state toggle in the page component).
- **Verify:** Reload `/meals/<id>`. Title readable, description is 1-2 lines, "Featured In Group…" gone, full text in disclosure. Build clean.

### S2.3 · B8 — Pantry aisle: free-text → canonical select
- **Files:** `frontend/src/pages/Pantry.tsx`, `frontend/src/types/index.ts`, **backend migration**
- **Frontend change:** Replaced aisle `<Input>` with `<Select>` populated from `PANTRY_AISLES` in `types/index.ts`:
  ```ts
  export const PANTRY_AISLES = [
    'Produce', 'Meat & Seafood', 'Dairy & Eggs', 'Pantry',
    'Frozen', 'Bakery', 'Beverages', 'Spices', 'Other',
  ] as const;
  export type PantryAisle = (typeof PANTRY_AISLES)[number];
  ```
  Also converted Unit to a `<Select>` with the canonical unit list. Added `*` to "Ingredient name" label as a required-field marker.
- **Backend migration (`backend/alembic/versions/0015_normalize_pantry_aisles.py`):**
  - Revises `0014`. Runs in a single upgrade step.
  - Creates a `TEMP` backup table for each of `ingredient.aisle` and `grocery_item.aisle` (so a DBA can recover via `SELECT * FROM pg_temp.ingredient_aisle_backup` if needed).
  - `UPDATE`s both columns via a generated `CASE LOWER(COALESCE(aisle,'')) WHEN ... END` mapping. Mapped variants: `canned goods`/`canned` → `Pantry`, `freezer`/`frozen` → `Frozen`, `dairy`/`eggs`/`cheese`/`milk`/`yogurt` → `Dairy & Eggs`, `meat`/`seafood`/`fish`/`chicken`/`beef`/`pork`/`meat_seafood` → `Meat & Seafood`, `bakery`/`bread` → `Bakery`, `beverage`/`beverages`/`drinks` → `Beverages`, `spice`/`spices`/`seasoning` → `Spices`, `pantry`/`dry`/`snack`/`snacks` → `Pantry`, anything else → `Other`. NULL stays NULL.
  - **Downgrade:** raises `NotImplementedError` — operator must restore from a pre-migration snapshot. Documented in migration docstring.
- **Dry-run SQL helper (`backend/scripts/dry_run_aisle_migration.sql`):** standalone SQL that counts rows that *would* change per table, no writes. Run via `docker compose exec -T db psql -U mealplanner -d mealplanner -f /dev/stdin < backend/scripts/dry_run_aisle_migration.sql` (no host psql needed; the db runs in a container).
- **Persistent backup helper (`backend/scripts/persist_aisle_backup.sql`):** creates `public.ingredient_aisle_backup_0015` and `public.grocery_item_aisle_backup_0015` permanent tables. Run BEFORE the migration if you want a recoverable record beyond the migration's session.
- **Verify (on dev DB):**
  ```bash
  # Persistent backup (optional, recommended)
  docker compose exec -T db psql -U mealplanner -d mealplanner \
    -f /dev/stdin < backend/scripts/persist_aisle_backup.sql
  # Dry-run
  docker compose exec -T db psql -U mealplanner -d mealplanner \
    -f /dev/stdin < backend/scripts/dry_run_aisle_migration.sql
  # Apply
  docker compose exec backend alembic upgrade head
  ```
  Add a new item with aisle "pantry" → stored as `Pantry`. Open Pantry list → all rows show sentence-case canonical labels. Frontend `npm run build` clean.

### S2.4 · B9 — ShoppingList aisle labels: human-readable map
- **File:** `frontend/src/pages/ShoppingList.tsx`
- **Change:** Added `AISLE_LABEL` map covering all backend aisle keys (snake_case and singular variants) at the top of the file, plus a tiny `aisleDisplay(key)` helper. Section header is now `<h3>{aisleDisplay(aisle)}</h3>` — unknown keys fall back to the raw key (no silent data loss). Also collapsed the S3.3 mobile stat-card grid into this edit since the file was already open.
- **Verify:** Reload `/shopping-list`. Section headers read `Meat & Seafood`, `Produce`, `Pantry`, `Dairy & Eggs` — no `meat_seafood` literal. Build clean.

### S2.5 · B10 — Mobile pantry table: scroll hint
- **File:** `frontend/src/pages/Pantry.tsx:236`
- **Change:** Wrapped `overflow-x-auto` in a `relative` container. Added `role="region" aria-label="Pantry items, scroll horizontally to see all columns"`. Right-edge gradient overlay (`pointer-events-none absolute inset-y-0 right-0 w-8 bg-gradient-to-l from-white to-transparent md:hidden`, `aria-hidden`) hints at overflow on mobile only.
- **Verify:** Screenshot at 390 px. The Expires + Actions columns are reachable via swipe, and a subtle right-edge fade hints at overflow. Build clean.

### S2.6 · B11 — Recipes filters: Apply / Reset / active count
- **File:** `frontend/src/pages/Recipes.tsx`
- **Change:**
  1. Lifted filter state into a single `applied` object (query-bound) and a `pending` object (form-bound). Form fields mutate `pending`; the query uses `applied`.
  2. Added `activeCount = Object.values(applied).filter(Boolean).length`.
  3. The Filters button now shows `{activeCount > 0 && <Badge>{activeCount}</Badge>}` plus `aria-expanded={showFilters}`.
  4. Added a Reset and "Apply filters" button at the bottom of the filter panel, separated by a top border. Apply commits `pending → applied`; Reset clears both.
  5. The filter panel is now wrapped in a `<div role="region" aria-label="Filters">` (Card doesn't forward extra HTML attrs).
- **Verify:** Open `/recipes`, apply 2 filters, collapse panel → button shows `Filters (2)`. Click Reset → all cleared, badge gone. Build clean.

### S2.7 · Sprint 2 verification gate
- `npm run lint && npm run build` pass.
- Backend migration run on dev DB; row counts logged to `Review/sprint2-migration-log.md`.
- Re-screenshot pantry, shopping list, recipes, meal detail, dashboard (new meal card width).
- **Done when:** All six P1s visually absent in the new screenshots, no regression in Sprint 1 fixes.

---

## Sprint 3 — Polish (P2s + a11y)

**Goal:** A daily-driver app — no jarring native dialogs, no mobile wrap, no 44 px-target misses, no silent crashes on bad routes.

**Status (2026-06-03):** ✅ All P2s and a11y sweep items implemented. `npm run build` green. Ready to commit and deploy.

### S3.1 · B12 — Undo-toast replaces `confirm()` for delete
- **Files:** `frontend/src/pages/Dashboard.tsx`, `Pantry.tsx`, `lib/toast.tsx`
- **Change (committed, ready for deploy):**
  1. **`lib/toast.tsx`** — renamed from `.ts` (needed for JSX). New `showToast.undo(message, onUndo, ms=5000)` helper renders a custom toast with an inline "Undo" button that fires `onUndo` and dismisses the toast. Note: `react-hot-toast` 2.6's `ToastOptions` doesn't expose `onClose`/`onDismiss`, so the helper does NOT run a callback on expiry — the Undo button is the only path to recovery. This is honest UX, equivalent in spirit to a `confirm()` declined.
  2. **Dashboard** `handleDelete(itemId)` captures the full `MealPlanItem` (day_of_week, meal_type, recipe_id) *before* the DELETE, then `showToast.undo` whose Undo handler re-fires `meals.generateItem(planId, dayOfWeek, mealType)` to refill the slot with a (possibly different) recipe. The plan R4 caveat applies: the exact recipe isn't restored, but the slot is filled.
  3. **Pantry** `handleRemove(item)` is fully reversible. Undo calls `pantry.add({ingredient_id, quantity, unit})` with the original values. Per-row loading state via new `removeId` state so only the clicked row's button shows the spinner.
  4. `confirm()` deleted in both call sites.
- **Verify:** Delete a meal → toast appears "Meal deleted" with Undo. Click Undo within 5s → slot refills. Same flow on Pantry: click Remove, click Undo → item returns. Build clean.
- **Verify:** Delete a meal → toast appears "Meal removed" with Undo. Click Undo within 5s → meal re-appears. Build clean.

### S3.2 · B13 — Mobile nav: `whitespace-nowrap` on link text
- **File:** `frontend/src/App.tsx:30-33`
- **Change (committed):** Added `whitespace-nowrap` to the `linkClass` helper return string; reduced `px-3` to `px-2 sm:px-3`. All 4 links fit on one line down to 360 px.
- **Verify:** Screenshot at 360 px. All 4 links on one line. Build clean.

### S3.3 · B14 — Mobile shopping-list stat cards: 3-col compact
- **File:** `frontend/src/pages/ShoppingList.tsx`
- **Change (committed in Sprint 2):** Replaced the 3 stacked full-width tiles with `grid grid-cols-3 gap-2 sm:gap-4`. CardBody padding reduces to `p-3 sm:p-6`; descriptive label collapses to "Estimated / Items / On Sale" on mobile. The 3 stats now sit in one row even on a 360 px viewport.
- **Verify:** Mobile screenshot shows the 3 stats in one row, much less vertical scroll. Build clean.

### S3.4 · ErrorBoundary is already present (verified)
- No code change. Verified `components/ErrorBoundary.tsx` is mounted in `App.tsx:42`. Audit item B-H9 (B = background, the B-prefixed list) closed without a code change.

### S3.5 · A11y sweep (4 small fixes, one commit)
- **Files:** `frontend/src/App.tsx`, `frontend/src/pages/Recipes.tsx` (already done in Sprint 2), `frontend/src/pages/Dashboard.tsx`, `frontend/src/components/ui/Badge.tsx`
- **Change (committed):**
  1. `App.tsx` `Navigation`: added `aria-current={isActive(prefix) ? 'page' : undefined}` on each `<Link>`; added `<nav aria-label="Primary">` and `<main id="main-content">` for skip-link targets.
  2. Recipes filter panel `<div role="region" aria-label="Filters">` — done in Sprint 2.
  3. Empty Generate slots: `min-h-11` (44 px) — done in Sprint 1.
  4. `Badge` component: added optional `icon: ReactNode` and `aria-label: string` props.
  5. `Dashboard` approval-status Badge now passes `aria-label="Approval status: approved"` (or the current value) so screen readers announce it explicitly.
- **Verify:** Tab through the nav: active link has `aria-current="page"`. Inspect Recipes filter panel: `role="region" aria-label="Filters"`. Measure empty-slot buttons at 390 px width = ≥ 44 px tall. Approval status reads aloud as "Approval status: approved" on the meal card.

### S3.6 · Sprint 3 verification gate
- `npm run lint && npm run build` pass.
- Final playwright walkthrough. All 14 audit findings closed in screenshots.
- Update `Review/ui-nielsen-audit.md` to mark each fix with a `[x]` and commit hash reference.

---

## Future (NOT in this plan — capture as follow-up tickets)
- F1. Onboarding hints (H10) — needs `react-joyride` or hand-rolled `<Tour>` component.
- F2. Keyboard shortcuts (`/`, `g p`, `g s`, `n m`).
- F3. Bulk add on Pantry/Shopping List (H7).
- F4. Plan-the-whole-week button (H7).
- F5. Persistent week selector in URL.
- F6. `aria-label` on color-only status badges (generalized).
- F7. Global `react-query` `onError` toast handler.

---

## Sprint 4 — Polish the error path (F7 + F6)

**Status (2026-06-03):** ✅ Both items implemented and committed (`d71b67a`). `npm run build` green. Awaiting deploy.

### S4.1 · F7 — Global react-query error toast handler
- **Files:** `frontend/src/lib/toast.tsx`, `frontend/src/App.tsx`, `frontend/src/pages/Dashboard.tsx`, `Pantry.tsx`, `MealDetail.tsx`
- **Change (one commit `d71b67a`):**
  1. **`lib/toast.tsx`** — added `extractErrorMessage(err, fallback)` and `showApiError(err, fallback)`. The normalizer reads `err.response.data.detail` when present (handles both `string` and Pydantic 422 `[{loc, msg, type}, ...]` array shapes), then falls back to `err.message`, then the supplied default. Never surfaces `"[object Object]"` or raw stack traces.
  2. **`App.tsx`** — `QueryClient` now created with `QueryCache({ onError })` and `MutationCache({ onError })` wired to `showApiError`. Added `defaultOptions.queries: { retry: 1, refetchOnWindowFocus: false }` so background-refetch failures (H9) are no longer silent.
  3. **`Dashboard.tsx`** — removed 6 local try/catch toasts (move / approve / deny / delete / generate + the outer delete handler). Kept `VoteEmailButton.handleSend` and `handleDelete`'s undo-callback with `showApiError(err, 'Failed to ...')` for action-specific fallback strings (these are user-initiated recovery paths where a contextual default is more useful than the bare FastAPI detail).
  4. **`Pantry.tsx`** — removed 3 local `onError` handlers (`addMutation`, `removeMutation`, `handleAdd`'s createIngredient path) and `handleRemove`'s outer catch. Kept 3 pre-flight client-side checks that never reach the network (missing ingredient link, empty name, unresolved ingredient). `handleRemove`'s undo callback now uses `showApiError` for the restore failure.
  5. **`MealDetail.tsx`** — removed `submitMutation.onError`. The local `"Failed to save feedback. Please try again."` is replaced by the actual FastAPI detail.
- **Net effect:** 10 backend-error try/catch blocks deleted; error messages are now identical to what the backend actually says; any future mutation that forgets to add a local `onError` still gets surfaced.
- **Backend audit (read-only):** Every `HTTPException(detail=...)` in the touched routes is human-friendly (e.g. `"Meal plan item not found"`, `"Slot already occupied"`, `"Family profile not found"`, `"ingredient name already exists"`). Pydantic 422s return arrays and the helper handles them. No detail message is technical/leaks internals.
- **Verify:** `npm run build` green. Live smoke: pull `100.108.208.56` and try each of the 7 Dashboard mutations + the 4 Pantry/MealDetail mutations with the backend down or returning 4xx — every failure should show a toast with the FastAPI `detail` string, not the legacy `"Failed to ..."` default.
- **Risk:** `sendVoteEmails` is fire-and-forget (`POST /orchestrate/email` returns 202 + `BackgroundTasks`; errors land in `WeeklyRun.error_message` not the HTTP response). The toast for that action will only ever show the success message or a network error. Keep the local fallback string for that one — it documents the intent.

### S4.2 · F6 — Plan-status Badge: `aria-label`
- **File:** `frontend/src/pages/Dashboard.tsx:438`
- **Change:** Added `aria-label={\`Plan status: ${mealPlan.status.replace(/_/g, ' ')}\`}` to the `<Badge>` that shows the meal-plan status (draft / awaiting_approval / approved / rejected). Matches the per-item approval-status pattern added in Sprint 3 (S3.5). A screen reader now announces `"Plan status: awaiting approval"` instead of just the colour-encoded `"awaiting approval"` text.
- **Other `<Badge>` audit:** the only other call site with colour-encoded semantics is the per-item approval status (already handled in Sprint 3) and the `"Never suggest this recipe again"` badge on MealDetail (its visible text fully describes intent, so the colour is decorative). The "Spice N/5" warning badge on RecipeDetail is also self-describing. **No further aria-label work needed.**
- **Verify:** VoiceOver/NVDA on the Dashboard header — the plan status badge announces with the category prefix.

### S4.3 · Sprint 4 verification gate
- [x] `npm run build` green for Sprint 4 (tsc 0 errors, vite 0 errors).
- [ ] Deploy verified (git pull on `100.108.224.12`, `docker compose up -d --build frontend` — no backend changes).
- [ ] Smoke pass: 11 mutation failures show FastAPI `detail` (not legacy fallback); plan-status Badge announces correctly.
- [ ] No regression in Sprint 1–3 fixes.

---

## Risks & mitigations
- **R1 · Backend field `qty` vs `quantity`:** confirm with a one-line `curl` against `/api/meals/<id>` before renaming the type. If the API still returns `quantity`, use a shim `ing.qty ?? ing.quantity` rather than breaking other consumers.
- **R2 · Pantry migration:** run against dev DB first; capture before/after row counts. **Do not** run on prod without the `--backup-table` step in place.
- **R3 · Tailwind `line-clamp-N`:** verify the project's `tailwind.config.js` enables the `lineClamp` core plugin (Tailwind 3.3+ has it on by default; project is on `^3.4.1`, so it should work).
- **R4 · Undo-toast:** requires the delete mutation to be reversible (i.e. we have the prior item body). Confirm the API has a `POST` create, not a `DELETE` tombstone, before implementing undo.
- **R5 · Build/runtime parity:** `npm run build` runs `tsc && vite build`. If a teammate runs `vite build` alone, type errors slip through. Add a CI hint in PR template.

---

## Done when (overall)
- [x] Sprint 1: 5 P0 fixes — committed `f3e4a44`, deployed by user 2026-06-02.
- [x] Sprint 2: 6 P1 fixes + 1 bonus S3.3 — committed `ccc70aa`, deploy helper `f5fb755`. Awaiting deploy.
- [x] Sprint 3: 3 P2 fixes + a11y sweep — committed `e90a9d6`, awaiting deploy.
- [x] Sprint 4: F7 (global error handler) + F6 (plan-status aria-label) — committed `d71b67a`, awaiting deploy. **No backend changes; deploy is frontend-only like Sprint 3.**
- [x] `npm run build` green for all four sprints (tsc 0 errors, vite 0 errors).
- [ ] Backend aisle-migration (`0015`) run on dev; row counts logged to `Review/sprint2-verification.md`.
- [ ] Manual smoke pass on `http://100.108.208.56:8082/` per `Review/sprint2-verification.md` (Sprint 1-3) and `Review/sprint4-verification.md` (Sprint 4).
- [ ] No regressions in existing Playwright walkthrough.