fix(#7): localize import snackbar strings and drop class.simpleName fallback

The three snackbar strings in ImportBankStatementScreenModel were
hardcoded English while the rest of the app uses stringResource. Move
them to res/values/strings.xml. Also drop the
error::class.simpleName fallback in the failure branch — it surfaced
Kotlin class names like NotImplementedError to end users. Now falls
back to the localized 'Import failed' string.

app/src/main/java/dev/achmad/ledgerr/ui/screens/import_bank_statement/ImportBankStatementScreenModel.kt

@@ -1,9 +1,11 @@
 package dev.achmad.ledgerr.ui.screens.import_bank_statement
 
+import android.content.Context
 import android.net.Uri
 import cafe.adriel.voyager.core.model.ScreenModel
 import cafe.adriel.voyager.core.model.screenModelScope
 import cafe.adriel.voyager.navigator.Navigator
+import dev.achmad.ledgerr.R
 import dev.achmad.ledgerr.di.util.inject
 import dev.achmad.ledgerr.domain.bankstatement.interactor.BankStatementImporter
 import dev.achmad.ledgerr.domain.bankstatement.model.PendingImportExpense
@@ -38,6 +40,7 @@ class ImportBankStatementScreenModel(
     private val importers: List<BankStatementImporter> = inject(),
     private val getCategories: GetCategories = inject(),
     private val insertExpenses: InsertExpenses = inject(),
+    private val context: Context = inject(),
 ) : ScreenModel {
 
     private val _state = MutableStateFlow<ImportState>(ImportState.BankPicker(importers))
@@ -66,16 +69,15 @@ class ImportBankStatementScreenModel(
                 .onSuccess { rows ->
                     if (rows.isEmpty()) {
                         _state.value = ImportState.BankPicker(importers)
-                        _snackbar.tryEmit("No transactions found in PDF")
+                        _snackbar.tryEmit(context.getString(R.string.import_no_transactions))
                     } else {
                         _state.value = ImportState.Confirmation(importer.bankName, rows)
                     }
                 }
                 .onFailure { error ->
                     _state.value = ImportState.BankPicker(importers)
-                    val message = error.message
-                        ?: error::class.simpleName
-                        ?: "Import failed"
+                    val message = error.message?.takeIf { it.isNotBlank() }
+                        ?: context.getString(R.string.import_failed)
                     _snackbar.tryEmit(message)
                 }
         }
@@ -113,7 +115,7 @@ class ImportBankStatementScreenModel(
             val confirmation = _state.value as? ImportState.Confirmation ?: return@launch
             val selected = confirmation.rows.filter { it.isSelected }
             if (selected.isEmpty()) {
-                _snackbar.tryEmit("No items selected")
+                _snackbar.tryEmit(context.getString(R.string.import_no_items_selected))
                 return@launch
             }
             withContext(Dispatchers.IO) {

app/src/main/res/values/strings.xml

@@ -39,6 +39,9 @@
     <string name="import_amount">Amount</string>
     <string name="import_date">Date (yyyy-MM-dd)</string>
     <string name="import_description">Description</string>
+    <string name="import_no_transactions">No transactions found in PDF</string>
+    <string name="import_failed">Import failed</string>
+    <string name="import_no_items_selected">No items selected</string>
 
     <!-- Settings -->
     <string name="settings_title">Settings</string>