diff --git a/app/resources/js/views/projects/NewProjectDialog.vue b/app/resources/js/views/projects/NewProjectDialog.vue
index a2088cbf..c9683916 100644
--- a/app/resources/js/views/projects/NewProjectDialog.vue
+++ b/app/resources/js/views/projects/NewProjectDialog.vue
@@ -76,16 +76,17 @@
                     :error-messages="errors.daily_limit_target"
                 />
 
-                <v-autocomplete
-                    v-model="selectedRegions"
-                    :items="REGIONS"
-                    item-title="name"
-                    item-value="code"
-                    label="Регионы (пусто = вся РФ)"
-                    multiple
-                    chips
-                    clearable
-                />
+                <v-alert
+                    v-if="generalError"
+                    type="error"
+                    variant="tonal"
+                    density="compact"
+                    class="mb-3"
+                    closable
+                    @click:close="generalError = null"
+                >
+                    {{ generalError }}
+                </v-alert>
 
                 <div class="mt-3">
                     <span class="text-caption">Дни недели приёма</span>
@@ -112,8 +113,7 @@
 
 <script setup lang="ts">
 import { ref, reactive, watch } from 'vue';
-import axios from 'axios';
-import { REGIONS } from '../../constants/regions';
+import { apiClient, ensureCsrfCookie, extractErrorMessage } from '../../api/client';
 import type { Project } from '../../stores/projectsStore';
 import DevIndexBadge from '../../components/DevIndexBadge.vue';
 
@@ -124,6 +124,9 @@ const props = defineProps<{
 }>();
 const emit = defineEmits(['update:modelValue', 'saved']);
 
+// region_mask=255 = все 8 ФО (schema default, см. db/schema.sql §projects).
+// PDD regions UI отключён до закрытия Plan 6 — конфликт с 8-битной ФО-маской
+// в PhonePrefixService.php (1 phone prefix ↔ 1 ФО, не субъект).
 const form = reactive({
     name: '',
     signal_type: 'site' as 'site' | 'call' | 'sms',
@@ -131,26 +134,13 @@ const form = reactive({
     sms_senders: [] as string[],
     sms_keyword: '',
     daily_limit_target: 50,
-    region_mask: 0,
+    region_mask: 255,
     region_mode: 'include' as 'include' | 'exclude',
     delivery_days_mask: 127,
 });
 const errors = reactive<Record<string, string[]>>({});
 const saving = ref(false);
-
-const selectedRegions = ref<number[]>([]);
-watch(selectedRegions, (codes) => {
-    if (codes.length === 0) {
-        form.region_mask = 0;
-        form.region_mode = 'include';
-    } else {
-        // 32-bit JS bitwise limit — region codes >31 не помещаются в Int32 mask.
-        // На MVP покрываем 1-31 (см. constants/regions.ts); для >31 нужен bigint
-        // или array-колонка (Plan 6 — schema delta).
-        form.region_mask = codes.reduce((acc, c) => (c <= 31 ? acc | (1 << c) : acc), 0);
-        form.region_mode = 'exclude';
-    }
-});
+const generalError = ref<string | null>(null);
 
 const dayLabels = ['Пн', 'Вт', 'Ср', 'Чт', 'Пт', 'Сб', 'Вс'];
 const selectedDays = ref<number[]>([0, 1, 2, 3, 4, 5, 6]);
@@ -166,10 +156,9 @@ function setWorkdays(preset: 'weekdays' | 'all') {
 watch(
     () => props.modelValue,
     (open) => {
+        if (open) generalError.value = null;
         if (open && props.mode === 'edit' && props.project) {
             Object.assign(form, props.project);
-            // TODO: разобрать region_mask обратно в codes (Plan 6 ↑).
-            selectedRegions.value = [];
             const days: number[] = [];
             for (let i = 0; i < 7; i++) if (form.delivery_days_mask & (1 << i)) days.push(i);
             selectedDays.value = days;
@@ -181,11 +170,10 @@ watch(
                 sms_senders: [],
                 sms_keyword: '',
                 daily_limit_target: 50,
-                region_mask: 0,
+                region_mask: 255,
                 region_mode: 'include',
                 delivery_days_mask: 127,
             });
-            selectedRegions.value = [];
             selectedDays.value = [0, 1, 2, 3, 4, 5, 6];
         }
     },
@@ -193,12 +181,14 @@ watch(
 
 async function submit() {
     saving.value = true;
+    generalError.value = null;
     Object.keys(errors).forEach((k) => delete errors[k]);
     try {
+        await ensureCsrfCookie();
         if (props.mode === 'edit' && props.project) {
-            await axios.patch(`/api/projects/${props.project.id}`, { ...form });
+            await apiClient.patch(`/api/projects/${props.project.id}`, { ...form });
         } else {
-            await axios.post('/api/projects', { ...form });
+            await apiClient.post('/api/projects', { ...form });
         }
         emit('saved');
         close();
@@ -206,6 +196,8 @@ async function submit() {
         const err = e as { response?: { status?: number; data?: { errors?: Record<string, string[]> } } };
         if (err.response?.status === 422 && err.response.data?.errors) {
             Object.assign(errors, err.response.data.errors);
+        } else {
+            generalError.value = extractErrorMessage(e);
         }
     } finally {
         saving.value = false;
diff --git a/app/tests/Frontend/EditProjectDialog.spec.ts b/app/tests/Frontend/EditProjectDialog.spec.ts
index e344a51a..3b3899a2 100644
--- a/app/tests/Frontend/EditProjectDialog.spec.ts
+++ b/app/tests/Frontend/EditProjectDialog.spec.ts
@@ -2,10 +2,17 @@ import { describe, it, expect, vi, beforeEach } from 'vitest';
 import { mount, flushPromises } from '@vue/test-utils';
 import { createPinia, setActivePinia } from 'pinia';
 import { createVuetify } from 'vuetify';
-import axios from 'axios';
 
-vi.mock('axios');
+vi.mock('../../resources/js/api/client', () => ({
+    apiClient: {
+        post: vi.fn().mockResolvedValue({ data: {} }),
+        patch: vi.fn().mockResolvedValue({ data: {} }),
+    },
+    ensureCsrfCookie: vi.fn().mockResolvedValue(undefined),
+    extractErrorMessage: vi.fn(() => 'Произошла ошибка.'),
+}));
 
+import { apiClient } from '../../resources/js/api/client';
 import EditProjectDialog from '../../resources/js/views/projects/EditProjectDialog.vue';
 
 const sampleProject = {
@@ -52,12 +59,11 @@ describe('EditProjectDialog', () => {
     });
 
     it('PATCH on submit', async () => {
-        (axios.patch as ReturnType<typeof vi.fn>).mockResolvedValue({ data: { data: { id: 1 } } });
         const wrapper = factory({ modelValue: true, project: sampleProject });
         await flushPromises();
         await wrapper.find('[data-testid="submit-btn"]').trigger('click');
         await flushPromises();
-        expect(axios.patch).toHaveBeenCalled();
+        expect(apiClient.patch).toHaveBeenCalled();
     });
 
     it('signal_type tabs disabled in edit mode', async () => {