feat(fase-5.10): /lists/[id] row redesign — buttons + swipe-toggle + overlay

Replaces the checkbox/hover-delete model with an explicit gesture+overlay
flow on /lists/[id].

Row anatomy (new)
  [drag-handle]  [name as button]  [qty stepper  − N +]
  - No checkbox in normal mode.
  - Checked items render with strikethrough + muted text.
  - Drag handle always visible on mobile; revealed on hover on desktop
    (md:opacity-0 md:group-hover:opacity-100). The handle owns the drag
    (pointerdown → dragEnabled=true), so row swipes + taps keep working.

Swipe gestures (symmetric toggle, no delete)
  unchecked + swipe RIGHT → mark checked (green success reveal)
  checked   + swipe LEFT  → mark unchecked (neutral reveal)
  opposite direction for each state is a no-op (snaps back).
  SWIPE_COMMIT_THRESHOLD=120 (was 200 for delete); REVEAL_WIDTH=96.
  Symmetry means undo is the inverse swipe — no undoQueue on toggles.

Double-tap overlay (name + delete + confirm)
  Short tap: no-op. Two taps within DOUBLE_TAP_WINDOW_MS (300 ms) open a
  full-screen dialog (bottom sheet on mobile) with:
    - X close button (top-right)
    - name input
    - Delete button (red) → scheduleUndoable → UndoToast
    - Confirm button (primary) → updateItem({ name })
  Click outside / Escape / X all dismiss without saving.

Tests
  items.test.ts
    D-03 rewritten: double-tap opens overlay, value matches, X closes.
    D-04 rewritten: overlay Delete removes the row; toast locator scoped
      out of itemRow so it doesn't shadow the assertion.
  realtime.test.ts
    R-E-02 updated: Ana renames via overlay → Borja sees new name over
      Realtime UPDATE. (The check/uncheck path is now gestural only and
      chromium touch emulation is too flaky to drive it in E2E; Vitest
      integration R-02 still covers the UPDATE-row-payload invariant.)
  mobile-swipe-delete.test.ts stays describe.skip — will be renamed and
  rewritten for the new semantics once WebKit install lands in CI.

i18n
  list_qty_decrease, list_qty_increase, list_reorder_handle,
  list_edit_item, list_confirm, list_close — en/es.

Verification
  just test-e2e → 40 passed, 2 skipped (same as pre-change).
  Type-check clean.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/web/tests/e2e/items.test.ts

@@ -57,27 +57,29 @@ test.describe('Shopping items — member (Borja)', () => {
 		await expect(page.getByText(itemName)).toBeVisible({ timeout: 10_000 });
 	});
 
-	test('D-03: can check an item — toggles the aria-checked state', async ({ page }) => {
+	test('D-03: double-tapping a row opens the edit overlay (new interaction)', async ({ page }) => {
 		await gotoSeedList(page);
-		// Add a fresh item so we don't race with other tests' check state.
 		const nameInput = page.getByPlaceholder(ADD_ITEM_PLACEHOLDER);
 		await expect(nameInput).toBeVisible({ timeout: 10_000 });
 
 		const itemName = `Check-me-${Date.now()}`;
 		await nameInput.fill(itemName);
 		await nameInput.press('Enter');
-		await expect(page.getByText(itemName)).toBeVisible({ timeout: 5_000 });
-
 		const row = itemRow(page, itemName);
-		const toggle = row.getByRole('button', { name: /toggle item|uncheck item/i });
-		await toggle.click();
+		await expect(row).toBeVisible({ timeout: 5_000 });
 
-		// A checked item is moved into the "Checked" section. Verify it still
-		// shows on the page (it slides to the checked list with animation).
-		await expect(page.getByText(itemName)).toBeVisible({ timeout: 5_000 });
+		// Double-tap opens the overlay — the new edit path.
+		await row.getByRole('button', { name: itemName }).dblclick();
+		const overlay = page.getByTestId('edit-overlay');
+		await expect(overlay).toBeVisible({ timeout: 3_000 });
+		await expect(overlay.getByPlaceholder(/add item|añadir producto/i)).toHaveValue(itemName);
+
+		// Close the overlay without saving — X button.
+		await overlay.getByRole('button', { name: /close|cerrar/i }).click();
+		await expect(overlay).not.toBeVisible({ timeout: 3_000 });
 	});
 
-	test('D-04: can delete an item on desktop via the trash button', async ({ page }) => {
+	test('D-04: overlay Delete button removes the row with an undo toast', async ({ page }) => {
 		await gotoSeedList(page);
 		const nameInput = page.getByPlaceholder(ADD_ITEM_PLACEHOLDER);
 		await expect(nameInput).toBeVisible({ timeout: 10_000 });
@@ -85,20 +87,17 @@ test.describe('Shopping items — member (Borja)', () => {
 		const itemName = `Delete-me-${Date.now()}`;
 		await nameInput.fill(itemName);
 		await nameInput.press('Enter');
-		await expect(itemRow(page, itemName)).toBeVisible({ timeout: 5_000 });
-
 		const row = itemRow(page, itemName);
-		await row.hover();
+		await expect(row).toBeVisible({ timeout: 5_000 });
 
-		// The row has 3 "Delete" buttons in markup (swipe-reveal behind the row,
-		// desktop-hover on the row, and a checked-state one). The desktop-hover
-		// button is the one with `sm:flex` — target it via class.
-		await row.locator('button.sm\\:flex[aria-label="Delete"]').click();
+		// Double-tap → overlay → Delete. (The swipe gesture is a toggle now,
+		// not a delete; delete lives behind the overlay.)
+		await row.getByRole('button', { name: itemName }).dblclick();
+		const overlay = page.getByTestId('edit-overlay');
+		await expect(overlay).toBeVisible({ timeout: 3_000 });
+		await overlay.getByRole('button', { name: /^delete$|^eliminar$/i }).click();
 
-		// After Fase 5.5 the delete goes through the undo queue: the row is
-		// removed immediately, but a toast briefly shows "Deleted <name>" — that
-		// substring matches `getByText(itemName)`. Scope the assertion to the
-		// item list (role="listitem") so the toast is ignored.
+		// Row gone from the list; toast scoped out via itemRow locator.
 		await expect(itemRow(page, itemName)).not.toBeVisible({ timeout: 5_000 });
 	});