diff --git a/app/resources/js/api/deals.ts b/app/resources/js/api/deals.ts
index 84d2c612..f043b28e 100644
--- a/app/resources/js/api/deals.ts
+++ b/app/resources/js/api/deals.ts
@@ -233,3 +233,14 @@ export async function listProjects(tenantId: number): Promise<ApiProject[]> {
     });
     return data.projects;
 }
+
+/**
+ * Лёгкий count-only запрос для бейджа «Сделки» в AppSidebar (audit B2).
+ * Backend пропускает SELECT строк — отдаёт только COUNT(*).
+ */
+export async function fetchDealsCount(tenantId: number): Promise<number> {
+    const { data } = await apiClient.get<{ total: number }>('/api/deals', {
+        params: { tenant_id: tenantId, count_only: 1 },
+    });
+    return data.total;
+}
diff --git a/app/resources/js/components/layout/AppSidebar.vue b/app/resources/js/components/layout/AppSidebar.vue
index 4b3fdac7..5a2e846a 100644
--- a/app/resources/js/components/layout/AppSidebar.vue
+++ b/app/resources/js/components/layout/AppSidebar.vue
@@ -7,9 +7,11 @@
  * Brand mark + nav-tree (3 группы: Работа, Финансы, Команда).
  * Counts для «Сделки» — mock.
  */
-import { computed } from 'vue';
+import { computed, onMounted } from 'vue';
 import { useRoute } from 'vue-router';
 import Kbd from '../ui/Kbd.vue';
+import { useAuthStore } from '../../stores/auth';
+import { useDealsCountStore } from '../../stores/dealsCount';
 
 interface NavItem {
     title: string;
@@ -26,13 +28,19 @@ interface NavGroup {
 const drawerOpen = defineModel<boolean>('drawerOpen', { default: true });
 
 const route = useRoute();
+const auth = useAuthStore();
+const dealsCount = useDealsCountStore();
+
+onMounted(() => {
+    if (auth.user?.tenant_id) void dealsCount.load(auth.user.tenant_id);
+});
 
 const navGroups = computed<NavGroup[]>(() => [
     {
         eyebrow: 'Работа',
         items: [
             { title: 'Проекты', icon: 'mdi-folder-multiple-outline', to: '/projects' },
-            { title: 'Сделки', icon: 'mdi-format-list-bulleted', to: '/deals', count: 247 },
+            { title: 'Сделки', icon: 'mdi-format-list-bulleted', to: '/deals', count: dealsCount.count ?? undefined, countKey: 'deals' },
             { title: 'Канбан', icon: 'mdi-view-column-outline', to: '/kanban' },
             { title: 'Дашборд', icon: 'mdi-view-dashboard-outline', to: '/dashboard' },
             { title: 'Импорт данных', icon: 'mdi-database-import-outline', to: '/import' },
diff --git a/app/resources/js/stores/dealsCount.ts b/app/resources/js/stores/dealsCount.ts
new file mode 100644
index 00000000..86961ca5
--- /dev/null
+++ b/app/resources/js/stores/dealsCount.ts
@@ -0,0 +1,21 @@
+import { defineStore } from 'pinia';
+import { ref } from 'vue';
+import { fetchDealsCount } from '../api/deals';
+
+/**
+ * Счётчик сделок tenant'а для бейджа «Сделки» в AppSidebar (audit B2).
+ * count=null до загрузки или на fail → бейдж скрыт (resolveCount → 0).
+ */
+export const useDealsCountStore = defineStore('dealsCount', () => {
+    const count = ref<number | null>(null);
+
+    async function load(tenantId: number): Promise<void> {
+        try {
+            count.value = await fetchDealsCount(tenantId);
+        } catch {
+            count.value = null;
+        }
+    }
+
+    return { count, load };
+});
diff --git a/app/tests/Frontend/AppSidebarRedesign.spec.ts b/app/tests/Frontend/AppSidebarRedesign.spec.ts
index 7a7622c5..69a787f4 100644
--- a/app/tests/Frontend/AppSidebarRedesign.spec.ts
+++ b/app/tests/Frontend/AppSidebarRedesign.spec.ts
@@ -1,12 +1,15 @@
-import { describe, it, expect, beforeEach } from 'vitest';
+import { describe, it, expect, beforeEach, test } from 'vitest';
 import { mount, type VueWrapper } from '@vue/test-utils';
 import { createMemoryHistory, createRouter, type Router } from 'vue-router';
 import { createPinia, setActivePinia } from 'pinia';
 import { createVuetify } from 'vuetify';
 import AppSidebar from '../../resources/js/components/layout/AppSidebar.vue';
+import { useDealsCountStore } from '../../resources/js/stores/dealsCount';
 
 async function setup(initialRoute = '/deals'): Promise<{ wrapper: VueWrapper; router: Router }> {
     setActivePinia(createPinia());
+    // B2: default count=5 so badge renders in non-B2 tests (replaces hardcoded 247).
+    useDealsCountStore().count = 5;
     const router = createRouter({
         history: createMemoryHistory(),
         routes: [
@@ -63,3 +66,23 @@ describe('AppSidebar — redesigned shell', () => {
         expect(active).toBeDefined();
     });
 });
+
+test('B2: бейдж «Сделки» рендерит count из dealsCount-store', async () => {
+    const { wrapper } = await setup();
+    const store = useDealsCountStore();
+    store.count = 42;
+    await wrapper.vm.$nextTick();
+
+    const badge = wrapper.find('[data-testid="nav-count-deals"]');
+    expect(badge.exists()).toBe(true);
+    expect(badge.text()).toBe('42');
+});
+
+test('B2: бейдж «Сделки» скрыт пока count=null', async () => {
+    const { wrapper } = await setup();
+    const store = useDealsCountStore();
+    store.count = null;
+    await wrapper.vm.$nextTick();
+
+    expect(wrapper.find('[data-testid="nav-count-deals"]').exists()).toBe(false);
+});