Use daily interest accrual for HELOC and auto loan amortization

Mortgages and personal loans use monthly compounding (rate/12), but
HELOCs and auto loans accrue interest daily (rate/365 * actual days).
Select the calculation method based on account type and update the
disclaimer to reflect which method is being used.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/src/views/loans/LoansView.vue

@@ -104,7 +104,7 @@
       </v-card>
 
       <v-alert v-if="loanDetail" type="info" variant="tonal" density="compact" class="mb-4">
-        Amounts shown are estimates based on standard monthly compounding. Actual values may differ slightly due to your lender's rounding practices.
+        Amounts shown are estimates using {{ isDailyAccrualAccount ? 'daily interest accrual' : 'standard monthly compounding' }}. Actual values may differ slightly due to your lender's rounding practices.
       </v-alert>
 
       <!-- Amortization Schedule -->
@@ -268,12 +268,18 @@ const snackbar = ref(false)
 const snackbarText = ref('')
 const snackbarColor = ref('success')
 
-const loanAccountTypes = ['AutoLoan', 'PersonalLoan', 'Mortgage']
+const loanAccountTypes = ['AutoLoan', 'PersonalLoan', 'Mortgage', 'LineOfCredit']
+const dailyAccrualTypes = ['AutoLoan', 'LineOfCredit']
 
 const loanAccounts = computed(() =>
   accountsStore.accounts.filter(a => a.hasLoanDetail || loanAccountTypes.includes(a.type))
 )
 
+const isDailyAccrualAccount = computed(() => {
+  const account = accountsStore.accounts.find(a => a.id === props.id)
+  return account ? dailyAccrualTypes.includes(account.type) : false
+})
+
 const amortHeaders = [
   { title: '#', key: 'paymentNumber', width: '60px' },
   { title: 'Date', key: 'paymentDate', width: '110px' },