fix(libra): drop payment-method field from income submission

Income now lands on the submitting user as a receivable rather than
on an entity asset account — see the matching libra backend change.
Removes the "Received into" select and its supporting state from the
form, and drops payment_method_account from IncomeEntryRequest /
IncomeEntry. The form is now description + amount + currency + revenue
account + optional reference.

src/accounting-app/views/AddIncome.vue

@@ -143,30 +143,6 @@
                 </FormItem>
               </FormField>
 
-              <FormField v-slot="{ componentField }" name="paymentMethodAccount">
-                <FormItem>
-                  <FormLabel>Received into *</FormLabel>
-                  <Select v-bind="componentField">
-                    <FormControl>
-                      <SelectTrigger>
-                        <SelectValue placeholder="Select asset account" />
-                      </SelectTrigger>
-                    </FormControl>
-                    <SelectContent>
-                      <SelectItem
-                        v-for="acc in assetAccounts"
-                        :key="acc.id"
-                        :value="acc.name"
-                      >
-                        {{ acc.name }}
-                      </SelectItem>
-                    </SelectContent>
-                  </Select>
-                  <FormDescription>Where the funds were received (Cash, Bank, Lightning, etc.)</FormDescription>
-                  <FormMessage />
-                </FormItem>
-              </FormField>
-
               <FormField v-slot="{ componentField }" name="reference">
                 <FormItem>
                   <FormLabel>Reference</FormLabel>
@@ -269,7 +245,6 @@ const currentStep = ref(1)
 const selectedRevenueAccount = ref<Account | null>(null)
 const isSubmitting = ref(false)
 const availableCurrencies = ref<string[]>([])
-const assetAccounts = ref<Account[]>([])
 const showSuccessDialog = ref(false)
 
 const formSchema = toTypedSchema(
@@ -277,7 +252,6 @@ const formSchema = toTypedSchema(
     description: z.string().min(1, 'Description is required').max(500, 'Description too long'),
     amount: z.coerce.number().min(0.01, 'Amount must be at least 0.01'),
     currency: z.string().min(1, 'Currency is required'),
-    paymentMethodAccount: z.string().min(1, 'Payment method is required'),
     reference: z.string().max(100, 'Reference too long').optional(),
   })
 )
@@ -288,7 +262,6 @@ const form = useForm({
     description: '',
     amount: 0,
     currency: '',
-    paymentMethodAccount: '',
     reference: '',
   }
 })
@@ -310,11 +283,6 @@ onMounted(async () => {
     const defaultCurrency = await expensesAPI.getDefaultCurrency()
     const initialCurrency = defaultCurrency || currencies[0] || 'EUR'
     form.setFieldValue('currency', initialCurrency)
-
-    const allAccounts = await expensesAPI.getAccounts(wallet.inkey, false, true)
-    assetAccounts.value = allAccounts.filter(
-      (a) => a.name === 'Assets' || a.name.startsWith('Assets:')
-    )
   } catch (error) {
     console.error('[AddIncome] Failed to load data:', error)
     toast.error('Failed to load form data', { description: 'Please check your connection and try again' })
@@ -345,7 +313,6 @@ const onSubmit = form.handleSubmit(async (values) => {
       description: values.description,
       amount: values.amount,
       revenue_account: selectedRevenueAccount.value.name,
-      payment_method_account: values.paymentMethodAccount,
       currency: values.currency,
       reference: values.reference,
     })

src/modules/expenses/types/index.ts

@@ -80,13 +80,13 @@ export interface ExpenseEntry {
 }
 
 /**
- * Income entry request payload
+ * Income entry request payload. Income lands on the submitting user as
+ * a receivable (Assets:Receivable:User-{id}) — no payment-method account.
  */
 export interface IncomeEntryRequest {
   description: string
   amount: number
   revenue_account: string
-  payment_method_account: string
   currency: string
   reference?: string
   entry_date?: string
@@ -101,7 +101,6 @@ export interface IncomeEntry {
   description: string
   amount: number
   revenue_account: string
-  payment_method_account: string
   currency: string
   reference?: string
   entry_date: string