auto pick default account when selecting contact from contact picker or trsnafering from contacts

app/src/main/java/sh/sar/basedbank/ui/home/TransferFragment.kt

@@ -255,6 +255,18 @@ class TransferFragment : Fragment() {
             val colorHex  = bundle.getString(ContactPickerSheetFragment.KEY_COLOR) ?: "#607D8B"
             val imageHash = bundle.getString(ContactPickerSheetFragment.KEY_IMAGE_HASH)
             prefillToDirectly(accountNumber, label, subtitle, colorHex, imageHash)
+            if (selectedAccount == null) {
+                val defaultNum = CredentialStore(requireContext()).getDefaultAccountNumber()
+                if (defaultNum != null) {
+                    val defaultAcc = viewModel.accounts.value?.firstOrNull { it.accountNumber == defaultNum }
+                    if (defaultAcc != null) {
+                        selectedAccount = defaultAcc
+                        updateAmountPrefix(defaultAcc)
+                        showFromCard(defaultAcc)
+                        updateTransferButton()
+                    }
+                }
+            }
         }
 
         binding.btnPickContact.setOnClickListener {
@@ -439,6 +451,20 @@ class TransferFragment : Fragment() {
                 }
             }
 
+            // Auto-select default account when arriving from contacts page (TO account already pre-filled)
+            if (selectedAccount == null && arguments?.getString(ARG_ACCOUNT) != null) {
+                val defaultNum = CredentialStore(requireContext()).getDefaultAccountNumber()
+                if (defaultNum != null) {
+                    val defaultAcc = accounts.firstOrNull { it.accountNumber == defaultNum }
+                    if (defaultAcc != null) {
+                        selectedAccount = defaultAcc
+                        updateAmountPrefix(defaultAcc)
+                        showFromCard(defaultAcc)
+                        updateTransferButton()
+                    }
+                }
+            }
+
             // On a cold start (e.g. share intent), anyBmlSession() may be null when
             // onViewCreated runs. Retry the lookup once sessions are available.
             val pendingBmlQrUrl = arguments?.getString(ARG_BML_QR_URL)