fix(number-fields): избегаем потери точности длинных чисел

- number-поля теперь рендерятся как text + inputMode=numeric,
  чтобы браузер не округлял значения через input type=number
- пробелы при вставке в number-поля удаляются
- бэкенд нормализует значения number-полей в строку перед сохранением
- добавлен хелпер normalizeFieldValueForStorage

Closes: искажение расчётного счёта и других длинных числовых полей

server/utils/pushTaskUpdated.ts

@@ -0,0 +1,56 @@
+import { storage } from '../storage';
+import { eventBus } from '../routes/shared';
+import { webPushService } from '../services/web-push.service';
+
+/**
+ * Sends web-push notifications about a task update to all task participants
+ * who do NOT have an active SSE connection (i.e. are offline).
+ *
+ * Recipients = assignedTo + createdBy + all active taskUserAccess members,
+ * minus the actor who triggered the event.
+ */
+export async function pushTaskUpdated(opts: {
+  taskId: number;
+  organizationId: number;
+  formId: number;
+  taskTitle: string;
+  actorId: number;
+}): Promise<void> {
+  const { taskId, organizationId, formId, taskTitle, actorId } = opts;
+
+  try {
+    const candidates = new Set<number>();
+
+    // Core fields: assignedTo / createdBy
+    const task = await storage.getTask(taskId, organizationId);
+    if (task) {
+      if (task.assignedTo) candidates.add(task.assignedTo);
+      if (task.createdBy) candidates.add(task.createdBy);
+    }
+
+    // All users who have interacted with the task (non-revoked access records)
+    const accessList = await storage.getTaskUserAccess(taskId, organizationId);
+    for (const entry of accessList) {
+      if (!entry.revokedAt) {
+        candidates.add(entry.userId);
+      }
+    }
+
+    // Exclude the actor who triggered the event — they see it instantly
+    candidates.delete(actorId);
+
+    for (const uid of candidates) {
+      if (!eventBus.isUserConnected(uid, organizationId)) {
+        await webPushService.sendToUser(uid, organizationId, {
+          title: 'Задача обновлена',
+          body: taskTitle,
+          icon: '/favicon.svg',
+          url: `/forms/${formId}/tasks/${taskId}`,
+          tag: `task-updated-${taskId}`,
+        });
+      }
+    }
+  } catch (err) {
+    console.error('[WebPush] pushTaskUpdated error:', err);
+  }
+}