#245: narrow umbrella subset — toast polish, opt-out tests, Restore defaults

Picked the 3 most isolated items from the 7-item umbrella; deferred the rest
as #259/#260/#261.

#223 + #224 — singular toast + summary on partial failure (T001):
- my-orders.tsx: replaced the N=1 vs N>1 ternary in scheduleDelete with a
  single t("myOrders.clearedCount", { count }) so i18next picks _one /
  _other automatically. Single-row delete now flows through this same toast
  too — user-visible copy for N=1 is now "1 order deleted" / "تم حذف طلب
  واحد" instead of the legacy "Order deleted" / "تم حذف الطلب".
- my-orders.tsx: partial-failure path now shows ONE summary toast using
  the existing clearedPartial key ("{{ok}} deleted, {{fail}} failed")
  instead of N error toasts. Total failure (okCount===0) keeps deleteFailed.
- Updated 3 Playwright specs that asserted the legacy copy:
  order-clear-finished-undo (already had the singular case), order-undo-toast
  (Arabic single-row delete), order-delete-flush-on-unmount (English).
  Note: the legacy "myOrders.deleted" locale key is now unreferenced in
  source — left in place to avoid noise; deletion can be handled separately.

#238 — opt-out coverage in executive-meetings-notifications.test.mjs (T002):
- Appended 4 tests + setPref/clearPref helpers covering
  filterRecipientsByNotificationPref: inApp=false drops user, missing pref
  defaults to ON, cross-event isolation (mute on event A leaves event B
  alone), email=false leaves in-app intact. Helpers use ON CONFLICT on the
  verified unique index. Some scenarios overlap existing tests in
  executive-meetings.test.mjs (lines 1764, 1809) — these still add value
  by exercising the meeting_created socket fan-out path and cross-event
  isolation, which the existing tests don't cover.

#236 — Restore defaults endpoint + button (T003):
- Server: added DELETE /api/executive-meetings/notification-prefs after PUT.
  Scoped strictly to req.session.userId, returns {ok, count}. Reuses
  requireExecutiveAccess guard. Architect confirmed no cross-user leakage.
- Client: restoreDefaults() handler + outline button (data-testid
  "em-pref-restore-defaults", NOT gated on dirty since the whole point is to
  blow away saved settings). New i18n keys restoreDefaults / restored in
  both locales.
- Architect found a stale-state race in restoreDefaults: setDraft(null)
  was called before invalidateQueries, letting the seed effect repopulate
  draft from still-cached pre-DELETE data. Fixed by inverting the order to
  match save() — invalidate first (await refetch), then setDraft(null).
- Tests: appended 2 integration tests to executive-meetings.test.mjs
  covering the full restore flow (PUT 2 muted prefs → DELETE → assert
  {ok,count:2} + GET shows defaults + actual fan-out reaches user again)
  and idempotent no-op DELETE on a user with no rows.

Test results:
- executive-meetings.test.mjs: 47/47 pass (incl. 2 new DELETE tests)
- executive-meetings-notifications.test.mjs: 11/11 pass (incl. 4 new opt-out tests)
- Playwright order specs: 6/6 pass after legacy-copy updates
- Pre-existing failures in service-orders + meeting_created fan-out are
  untouched and not caused by this change.

Follow-ups proposed: #259 (beforeunload + tab-close Playwright), #260
(admin override another user's prefs with audit row + UI), #261 (iPad
header verification — may already work).

artifacts/api-server/src/routes/executive-meetings.ts

@@ -2371,6 +2371,23 @@ router.put(
   },
 );
 
+// #236: DELETE wipes every pref row for the current user so all toggles
+// fall back to the schema default (in_app=true, email=true). Cheaper than
+// asking the client to PUT N "true" rows back, and avoids the partial-
+// update gotcha where a missing event type would stay opted-out.
+router.delete(
+  "/executive-meetings/notification-prefs",
+  requireExecutiveAccess,
+  async (req, res): Promise<void> => {
+    const userId = req.session.userId!;
+    const deleted = await db
+      .delete(executiveMeetingNotificationPrefsTable)
+      .where(eq(executiveMeetingNotificationPrefsTable.userId, userId))
+      .returning({ id: executiveMeetingNotificationPrefsTable.id });
+    res.json({ ok: true, count: deleted.length });
+  },
+);
+
 // =====================================================================
 // PDF GENERATION (server-side)
 // =====================================================================

artifacts/api-server/tests/executive-meetings-notifications.test.mjs

@@ -727,3 +727,215 @@ test("task_completed: notifies the prior assignee, excludes actor, writes both t
 
   await expectSocketEventsFor([coord2Sock], "task_completed", null);
 });
+
+// #238: opt-out coverage for filterRecipientsByNotificationPref. The HTTP
+// surface gives us black-box access — set a pref row, trigger the event,
+// assert delivery (or non-delivery) at the EMN + notifications + socket
+// layer. Each test owns its own pref row(s) and cleans them up so the
+// suite stays order-independent.
+async function setPref(userId, notificationType, { inApp, email }) {
+  await pool.query(
+    `INSERT INTO executive_meeting_notification_prefs
+       (user_id, notification_type, in_app, email)
+     VALUES ($1, $2, $3, $4)
+     ON CONFLICT (user_id, notification_type)
+       DO UPDATE SET in_app = EXCLUDED.in_app, email = EXCLUDED.email`,
+    [userId, notificationType, inApp, email],
+  );
+}
+
+async function clearPref(userId, notificationType) {
+  await pool.query(
+    `DELETE FROM executive_meeting_notification_prefs
+      WHERE user_id = $1 AND notification_type = $2`,
+    [userId, notificationType],
+  );
+}
+
+test("pref opt-out: inApp=false drops the user from in-app fan-out (others unaffected)", async () => {
+  await setPref(approver1.id, "meeting_created", { inApp: false, email: true });
+  try {
+    for (const s of [approver1Sock, approver2Sock]) clearSocketEvents(s);
+    const before = await snapshotMaxIds();
+
+    const create = await api(adminCookie, "POST", "/api/executive-meetings", {
+      titleAr: "اختبار تعطيل",
+      titleEn: "Opt-out fan-out",
+      meetingDate: today,
+      attendees: [],
+    });
+    assert.equal(create.status, 201);
+    const meeting = await create.json();
+    created.meetingIds.push(meeting.id);
+
+    // Wait for approver2 (default-on) so we know fan-out completed before
+    // checking that approver1 was dropped.
+    await waitFor(
+      () =>
+        approver2Sock.events.created.some(
+          (p) => p.notificationType === "meeting_created",
+        ),
+      { timeoutMs: 2000 },
+    );
+
+    const diff = scopeDiff(await newRowsAfter(before), {
+      notificationType: "meeting_created",
+      meetingId: meeting.id,
+      relatedType: "executive_meeting",
+      relatedId: meeting.id,
+    });
+
+    assert.equal(
+      rowsForUser(diff.emn, approver1.id).length,
+      0,
+      "opted-out user must NOT get an executive_meeting_notifications row",
+    );
+    assert.equal(
+      rowsForUser(diff.notifications, approver1.id).length,
+      0,
+      "opted-out user must NOT get a notifications row",
+    );
+    assertRecipientGotOneOfEach(diff, approver2.id, {
+      notificationType: "meeting_created",
+      meetingId: meeting.id,
+      relatedType: "executive_meeting",
+      relatedId: meeting.id,
+    });
+    expectNoSocketEventFor(approver1Sock, "meeting_created");
+  } finally {
+    await clearPref(approver1.id, "meeting_created");
+  }
+});
+
+test("pref opt-out: missing pref row defaults to ON (user receives delivery)", async () => {
+  // No setPref call — approver1 has no row at all for this event type.
+  // This is the implicit default-on case. Assert it explicitly so a
+  // future regression (e.g. flipping the default to off) is caught.
+  await pool.query(
+    `DELETE FROM executive_meeting_notification_prefs
+      WHERE user_id = $1 AND notification_type = $2`,
+    [approver1.id, "meeting_created"],
+  );
+
+  for (const s of [approver1Sock, approver2Sock]) clearSocketEvents(s);
+  const before = await snapshotMaxIds();
+
+  const create = await api(adminCookie, "POST", "/api/executive-meetings", {
+    titleAr: "افتراضي مفعل",
+    titleEn: "Default-on fan-out",
+    meetingDate: today,
+    attendees: [],
+  });
+  assert.equal(create.status, 201);
+  const meeting = await create.json();
+  created.meetingIds.push(meeting.id);
+
+  await waitFor(
+    () =>
+      approver1Sock.events.created.some(
+        (p) => p.notificationType === "meeting_created",
+      ),
+    { timeoutMs: 2000 },
+  );
+
+  const diff = scopeDiff(await newRowsAfter(before), {
+    notificationType: "meeting_created",
+    meetingId: meeting.id,
+    relatedType: "executive_meeting",
+    relatedId: meeting.id,
+  });
+  assertRecipientGotOneOfEach(diff, approver1.id, {
+    notificationType: "meeting_created",
+    meetingId: meeting.id,
+    relatedType: "executive_meeting",
+    relatedId: meeting.id,
+  });
+});
+
+test("pref opt-out: inApp=false on event A does NOT mute event B", async () => {
+  // Approver1 mutes meeting_created but is still an approver who should
+  // receive request_submitted. Verifies the filter is keyed on event type.
+  await setPref(approver1.id, "meeting_created", { inApp: false, email: true });
+  try {
+    for (const s of [approver1Sock, approver2Sock, coord1Sock]) {
+      clearSocketEvents(s);
+    }
+    const before = await snapshotMaxIds();
+
+    const create = await api(
+      coord1.cookie,
+      "POST",
+      "/api/executive-meetings/requests",
+      {
+        requestType: "note",
+        requestDetails: { note: "cross-event opt-out" },
+      },
+    );
+    assert.equal(create.status, 201);
+    const request = await create.json();
+    created.requestIds.push(request.id);
+
+    await waitFor(
+      () =>
+        approver1Sock.events.created.some(
+          (p) => p.notificationType === "request_submitted",
+        ),
+      { timeoutMs: 2000 },
+    );
+
+    const diff = scopeDiff(await newRowsAfter(before), {
+      notificationType: "request_submitted",
+      relatedType: "executive_meeting_request",
+      relatedId: request.id,
+    });
+    assertRecipientGotOneOfEach(diff, approver1.id, {
+      notificationType: "request_submitted",
+      relatedType: "executive_meeting_request",
+      relatedId: request.id,
+    });
+  } finally {
+    await clearPref(approver1.id, "meeting_created");
+  }
+});
+
+test("pref opt-out: email=false does NOT affect the in-app channel", async () => {
+  // Channel independence — muting email must leave in-app delivery alone.
+  await setPref(approver1.id, "meeting_created", { inApp: true, email: false });
+  try {
+    for (const s of [approver1Sock, approver2Sock]) clearSocketEvents(s);
+    const before = await snapshotMaxIds();
+
+    const create = await api(adminCookie, "POST", "/api/executive-meetings", {
+      titleAr: "قناة منفصلة",
+      titleEn: "Channel independence",
+      meetingDate: today,
+      attendees: [],
+    });
+    assert.equal(create.status, 201);
+    const meeting = await create.json();
+    created.meetingIds.push(meeting.id);
+
+    await waitFor(
+      () =>
+        approver1Sock.events.created.some(
+          (p) => p.notificationType === "meeting_created",
+        ),
+      { timeoutMs: 2000 },
+    );
+
+    const diff = scopeDiff(await newRowsAfter(before), {
+      notificationType: "meeting_created",
+      meetingId: meeting.id,
+      relatedType: "executive_meeting",
+      relatedId: meeting.id,
+    });
+    assertRecipientGotOneOfEach(diff, approver1.id, {
+      notificationType: "meeting_created",
+      meetingId: meeting.id,
+      relatedType: "executive_meeting",
+      relatedId: meeting.id,
+    });
+  } finally {
+    await clearPref(approver1.id, "meeting_created");
+  }
+});

artifacts/api-server/tests/executive-meetings.test.mjs

@@ -1858,3 +1858,94 @@ test("Notification prefs: channels are independent (email-only mute leaves in-ap
   assert.equal(rows[0].in_app, true);
   assert.equal(rows[0].email, false);
 });
+
+test("Notification prefs: DELETE wipes the user's pref rows so GET reverts to defaults", async () => {
+  // #236: clicking "Restore defaults" in the UI hits DELETE. After it
+  // returns, every event type must read default-on regardless of what
+  // had been muted before, and a follow-up fan-out must reach the user
+  // again. Use a fresh approver so we don't disturb other prefs tests.
+  const fresh = await createUser("em_pref_restore", "executive_office_manager");
+  const cookie = await login(fresh.username, TEST_PASSWORD);
+
+  // Mute two different event types on different channels so we can
+  // prove the DELETE clears EVERY row, not just one.
+  const put = await api(cookie, "PUT",
+    "/api/executive-meetings/notification-prefs",
+    {
+      prefs: [
+        { notificationType: "request_submitted", inApp: false, email: true },
+        { notificationType: "meeting_created", inApp: true, email: false },
+      ],
+    });
+  assert.equal(put.status, 200);
+
+  const { rows: pre } = await pool.query(
+    `SELECT COUNT(*)::int AS n
+       FROM executive_meeting_notification_prefs
+      WHERE user_id = $1`,
+    [fresh.id],
+  );
+  assert.equal(pre[0].n, 2, "PUT must have left 2 pref rows");
+
+  const del = await api(cookie, "DELETE",
+    "/api/executive-meetings/notification-prefs");
+  assert.equal(del.status, 200);
+  const delBody = await del.json();
+  assert.equal(delBody.ok, true);
+  assert.equal(delBody.count, 2, "DELETE must report wiping both rows");
+
+  const { rows: post } = await pool.query(
+    `SELECT COUNT(*)::int AS n
+       FROM executive_meeting_notification_prefs
+      WHERE user_id = $1`,
+    [fresh.id],
+  );
+  assert.equal(post[0].n, 0, "no pref rows must remain after DELETE");
+
+  // GET must now synthesize default-on for every type.
+  const after = await (await api(cookie, "GET",
+    "/api/executive-meetings/notification-prefs")).json();
+  for (const p of after.prefs) {
+    assert.equal(p.inApp, true, `${p.notificationType} must be default-on after DELETE`);
+    assert.equal(p.email, true, `${p.notificationType} must be default-on after DELETE`);
+  }
+
+  // And actual fan-out must reach the user again — a regression in the
+  // DELETE handler that left rows behind would silently re-mute them.
+  const beforeCount = await pool.query(
+    `SELECT COUNT(*)::int AS n
+       FROM executive_meeting_notifications
+      WHERE user_id = $1
+        AND notification_type = 'request_submitted'`,
+    [fresh.id],
+  );
+  const submit = await api(coordCookie, "POST",
+    "/api/executive-meetings/requests",
+    { requestType: "note", requestDetails: { note: "post-restore-fanout" } });
+  assert.equal(submit.status, 201);
+  created.requestIds.push((await submit.json()).id);
+  const afterCount = await pool.query(
+    `SELECT COUNT(*)::int AS n
+       FROM executive_meeting_notifications
+      WHERE user_id = $1
+        AND notification_type = 'request_submitted'`,
+    [fresh.id],
+  );
+  assert.ok(
+    afterCount.rows[0].n > beforeCount.rows[0].n,
+    "user with no pref rows (post-DELETE) must receive new request_submitted rows",
+  );
+});
+
+test("Notification prefs: DELETE on a user with no rows is a 200 no-op", async () => {
+  // Cheap idempotence check — clicking Restore defaults twice in a row
+  // must not 500 or surface a misleading error.
+  const fresh = await createUser("em_pref_restore_noop", "executive_coordinator");
+  const cookie = await login(fresh.username, TEST_PASSWORD);
+  const del = await api(cookie, "DELETE",
+    "/api/executive-meetings/notification-prefs");
+  assert.equal(del.status, 200);
+  const body = await del.json();
+  assert.equal(body.ok, true);
+  assert.equal(body.count, 0);
+});

artifacts/tx-os/src/locales/ar.json

@@ -1334,7 +1334,9 @@
         },
         "save": "حفظ التفضيلات",
         "reset": "إعادة",
-        "saved": "تم حفظ التفضيلات"
+        "saved": "تم حفظ التفضيلات",
+        "restoreDefaults": "استعادة الإعدادات الافتراضية",
+        "restored": "تمت استعادة الإعدادات الافتراضية"
       }
     }
   }

artifacts/tx-os/src/locales/en.json

@@ -1235,7 +1235,9 @@
         },
         "save": "Save preferences",
         "reset": "Reset",
-        "saved": "Preferences saved"
+        "saved": "Preferences saved",
+        "restoreDefaults": "Restore defaults",
+        "restored": "Preferences reset to defaults"
       }
     }
   }

artifacts/tx-os/src/pages/executive-meetings.tsx

@@ -6336,6 +6336,31 @@ function NotificationPrefsCard({
     setDraft(m);
   }
 
+  // #236: wipe every server-side pref row for the current user. The GET
+  // handler then synthesizes the defaults (in_app=true, email=true) for
+  // every event type, so a single round-trip restores the factory state
+  // without the client having to PUT a full payload of `true` toggles.
+  async function restoreDefaults() {
+    try {
+      await apiJson("/api/executive-meetings/notification-prefs", {
+        method: "DELETE",
+      });
+      // #236: invalidate FIRST so the refetch lands before we drop the
+      // local draft. If we cleared draft first, the reseed effect at
+      // line ~6284 would fire against the still-cached pre-delete
+      // payload, repopulating draft from stale data; the later refetch
+      // would then no-op because draft is non-null again.
+      await qc.invalidateQueries({
+        queryKey: ["/api/executive-meetings/notification-prefs"],
+      });
+      setDraft(null);
+      toast({ title: t("executiveMeetings.notificationsPage.prefs.restored") });
+    } catch (err) {
+      const msg = err instanceof Error ? err.message : String(err);
+      toast({ title: msg, variant: "destructive" });
+    }
+  }
+
   const types = data?.types ?? [];
 
   return (
@@ -6429,6 +6454,16 @@ function NotificationPrefsCard({
             >
               {t("executiveMeetings.notificationsPage.prefs.reset")}
             </Button>
+            {/* #236: restore-defaults wipes server rows even when the
+                local draft is clean, so it must NOT be gated on `dirty`. */}
+            <Button
+              size="sm"
+              variant="outline"
+              onClick={restoreDefaults}
+              data-testid="em-pref-restore-defaults"
+            >
+              {t("executiveMeetings.notificationsPage.prefs.restoreDefaults")}
+            </Button>
           </div>
         </>
       )}

artifacts/tx-os/src/pages/my-orders.tsx

@@ -438,7 +438,7 @@ export default function MyOrdersPage() {
 
     const timer = setTimeout(() => {
       ids.forEach((id) => timersRef.current.delete(id));
-      void performDelete(ids).then(({ failCount }) => {
+      void performDelete(ids).then(({ okCount, failCount }) => {
         if (failCount > 0) {
           // Restore failed deletions on error so the user sees them again.
           setPendingDeleteIds((prev) => {
@@ -446,8 +446,14 @@ export default function MyOrdersPage() {
             ids.forEach((id) => next.delete(id));
             return next;
           });
+          // #224: surface ONE summary toast instead of N error toasts. Total
+          // failure keeps the existing single-line copy; partial failure
+          // uses the existing `clearedPartial` key with both counts.
           toast({
-            title: t("myOrders.deleteFailed"),
+            title:
+              okCount === 0
+                ? t("myOrders.deleteFailed")
+                : t("myOrders.clearedPartial", { ok: okCount, fail: failCount }),
             variant: "destructive",
           });
         } else {
@@ -477,10 +483,10 @@ export default function MyOrdersPage() {
       toast({ title: t("myOrders.undone") });
     };
 
-    const title =
-      ids.length === 1
-        ? t("myOrders.deleted")
-        : t("myOrders.clearedCount", { count: ids.length });
+    // #223: lean on i18next pluralization (clearedCount_one / _other are
+    // already in both locales) so N=1 reads as "1 order deleted" instead
+    // of the generic "Order deleted" copy.
+    const title = t("myOrders.clearedCount", { count: ids.length });
 
     const handle = toast({
       title,

artifacts/tx-os/tests/order-clear-finished-undo.spec.mjs

@@ -31,10 +31,10 @@
 //   3. Bulk singular toast (Arabic):
 //      - Seed exactly 1 finished order.
 //      - Click the "مسح طلب منتهٍ" (Clear 1 finished) button + confirm.
-//      - When ids.length === 1 the bulk path uses myOrders.deleted, so the
-//        toast title is "تم حذف الطلب" (NOT clearedCount_one). This
-//        intentionally exercises the singular branch of the title selector
-//        in scheduleDelete().
+//      - #223: scheduleDelete() now always routes through clearedCount, so
+//        N=1 picks the i18next _one form. In Arabic that is
+//        "تم حذف طلب واحد" (singular plural form), not the generic
+//        "تم حذف الطلب".
 //      - Click Undo and verify the row remains in the DB and the card is
 //        visible again.
 //
@@ -391,10 +391,11 @@ test.describe("My Orders bulk Clear-finished + undo flow", () => {
     // Card filtered out while pending.
     await expect(cards).toHaveCount(0);
 
-    // Singular branch in scheduleDelete uses myOrders.deleted (NOT
-    // clearedCount_one). In Arabic that is "تم حذف الطلب".
+    // #223: singular branch now uses clearedCount_one (the same key as the
+    // plural branch, with i18next pluralization picking the right form).
+    // In Arabic the _one form is "تم حذف طلب واحد".
     const toast = toastRegion(page);
-    await expect(toast).toContainText("تم حذف الطلب");
+    await expect(toast).toContainText("تم حذف طلب واحد");
 
     // Undo within the window. Arabic undo label = "تراجع".
     await toast.getByRole("button", { name: "تراجع" }).click();

artifacts/tx-os/tests/order-delete-flush-on-unmount.spec.mjs

@@ -220,7 +220,10 @@ test.describe("My Orders unmount flushes pending deletes", () => {
     // The Undo toast should be open. We deliberately do NOT click Undo —
     // we want the cleanup path, not the cancel path.
     const toast = toastRegion(page);
-    await expect(toast).toContainText("Order deleted");
+    // #223: single-row delete now reads as the `clearedCount_one` form
+    // ("1 order deleted") shared with bulk-clear instead of the legacy
+    // "Order deleted" copy.
+    await expect(toast).toContainText("1 order deleted");
     await expect(toast.getByRole("button", { name: "Undo" })).toBeVisible();
 
     // Sanity: nothing should have fired yet — the 7s timer is still pending.

artifacts/tx-os/tests/order-undo-toast.spec.mjs

@@ -315,9 +315,12 @@ test.describe("My Orders undo-toast flow", () => {
       page.locator(".glass-panel.rounded-xl").filter({ hasText: serviceName }),
     ).toHaveCount(0);
 
-    // Toast title in Arabic = "تم حذف الطلب", action label = "تراجع".
+    // #223: single-row delete now goes through the same i18n-plural toast
+    // as bulk-clear, so N=1 reads as the `clearedCount_one` form
+    // ("تم حذف طلب واحد") instead of the legacy generic copy.
+    // Action label is unchanged ("تراجع").
     const toast = toastRegion(page);
-    await expect(toast).toContainText("تم حذف الطلب");
+    await expect(toast).toContainText("تم حذف طلب واحد");
     await toast.getByRole("button", { name: "تراجع" }).click();
 
     // The card should come back to the list immediately after Undo.