feat: add messaging toggles, password reset UI, and payment discounts

Add notification channel toggles to settings, password reset SMS action on user form, and discount/payable amount display on payment views.

src/views/payments/PaymentDetailView.vue

@@ -27,7 +27,15 @@
             </div>
             <div>
               <span class="text-muted text-xs block mb-1">مبلغ کل صورتحساب</span>
-              <span class="font-bold text-color text-xl">{{ toPersianDigits(payment.amount?.toLocaleString()) }} تومان</span>
+              <span class="font-bold text-color text-xl">{{ toPersianDigits((payment.amount || 0).toLocaleString()) }} تومان</span>
+            </div>
+            <div v-if="payment.discount">
+              <span class="text-muted text-xs block mb-1">تخفیف</span>
+              <span class="font-semibold text-orange-500 text-lg">{{ toPersianDigits((payment.discount || 0).toLocaleString()) }} تومان</span>
+            </div>
+            <div>
+              <span class="text-muted text-xs block mb-1">مبلغ قابل پرداخت</span>
+              <span class="font-bold text-color text-xl">{{ toPersianDigits(payableAmount.toLocaleString()) }} تومان</span>
             </div>
             <div>
               <span class="text-muted text-xs block mb-1">مبلغ کل دریافتی</span>
@@ -35,12 +43,16 @@
             </div>
             <div>
               <span class="text-muted text-xs block mb-1">باقیمانده</span>
-              <span class="font-bold text-red-500 text-lg">{{ toPersianDigits((payment.amount - (payment.paidAmount || 0)).toLocaleString()) }} تومان</span>
+              <span class="font-bold text-red-500 text-lg">{{ toPersianDigits(remainingAmount.toLocaleString()) }} تومان</span>
             </div>
             <div>
               <span class="text-muted text-xs block mb-1">وضعیت پرداخت</span>
               <StatusTag :status="payment.status" type="payment" />
             </div>
+            <div>
+              <span class="text-muted text-xs block mb-1">یادداشت</span>
+              <p class="text-sm text-color m-0 white-space-pre-wrap line-height-3">{{ payment.notes || '—' }}</p>
+            </div>
           </div>
         </div>
       </div>
@@ -76,6 +88,11 @@
                 {{ formatJalali(data.createdAt || data.date) }}
               </template>
             </Column>
+            <Column field="notes" header="یادداشت">
+              <template #body="{ data }">
+                <span class="white-space-pre-wrap">{{ data.notes || '—' }}</span>
+              </template>
+            </Column>
           </DataTable>
         </div>
       </div>
@@ -96,6 +113,16 @@
           <label class="font-semibold text-sm">شماره فیش / پیگیری *</label>
           <InputText v-model.trim="trxForm.receiptNumber" class="w-full text-sm" dir="ltr" />
         </div>
+        <div class="flex flex-column gap-2">
+          <label class="font-semibold text-sm" for="trx-notes">یادداشت</label>
+          <Textarea
+            id="trx-notes"
+            v-model="trxForm.notes"
+            rows="3"
+            class="w-full text-sm"
+            placeholder="یادداشت داخلی درباره این تراکنش…"
+          />
+        </div>
       </div>
       <template #footer>
         <Button label="انصراف" text severity="secondary" @click="showTransactionModal = false" />
@@ -106,11 +133,12 @@
 </template>
 
 <script setup>
-import { ref, reactive, onMounted } from 'vue';
+import { ref, reactive, computed, onMounted } from 'vue';
 import { useRoute } from 'vue-router';
 import { paymentApi } from '@/api/paymentApi';
 import { usePersianDate } from '@/composables/usePersianDate';
 import { useToast } from '@/composables/useToast';
+import { getPayableAmount } from '@/utils/paymentAmount';
 import PageHeader from '@/components/common/PageHeader.vue';
 import PermissionGate from '@/components/common/PermissionGate.vue';
 import StatusTag from '@/components/common/StatusTag.vue';
@@ -122,6 +150,7 @@ import Dialog from 'primevue/dialog';
 import Dropdown from 'primevue/select';
 import InputText from 'primevue/inputtext';
 import InputNumber from 'primevue/inputnumber';
+import Textarea from 'primevue/textarea';
 
 const route = useRoute();
 const paymentId = route.params.id;
@@ -141,9 +170,13 @@ const methodOptions = [
 const trxForm = reactive({
   amount: 500000,
   method: 'card',
-  receiptNumber: ''
+  receiptNumber: '',
+  notes: ''
 });
 
+const payableAmount = computed(() => getPayableAmount(payment.value || {}));
+const remainingAmount = computed(() => Math.max(0, payableAmount.value - (payment.value?.paidAmount || 0)));
+
 const fetchPayment = async () => {
   try {
     const res = await paymentApi.getOne(paymentId);
@@ -162,6 +195,7 @@ const handleRecordTransaction = async () => {
     await paymentApi.recordTransaction(paymentId, trxForm);
     showSuccess('تراکنش جدید با موفقیت ثبت شد');
     showTransactionModal.value = false;
+    trxForm.notes = '';
     fetchPayment();
   } catch (err) {
     showError(err);