K2: card purchases on Android (Room 2, card cycle, :feature:cards S-23 to S-27)

- :core:model model/Cards.kt per SPEC §14.2.4 "Changes in v0.35"; ContractTest covers the card wire values.
- :domain matchCardPurchase (§14.5.8), passing match_card_purchase.json (17 cases) in VectorTest.
- :data Room version 2 (card_connections, card_purchases, card_sync_state, MIGRATION_1_2 with its test,
  2.json exported); DTOs for E-36 to E-44 round-tripping K1's examples; the card cycle (E-44 push of
  pending link changes, E-40 pull) after each household cycle and after refresh; CardRepositoryImpl with
  CP-9 prefill, CP-10 matches, offline-first link/unlink/ignore; a local expense delete unlinks.
- :core:fakes FakeCardRepository and fakes/cards scenarios for every state of S-23 to S-27.
- :feature:cards S-23 (sheet and "Välj en annan utgift"), S-24, S-25 (Custom Tab, E-38 every 2 s while
  resumed, return link), S-26 (disconnect dialog), S-27, CardArt with the SJ Prio picture and the drawn
  fallback; 135 goldens and state-holder tests.
- :feature:expense S-7 cardPurchaseId prefill and link on save, S-8 "Från kortköp" line;
  :feature:account S-5 "Från kortköp"; :feature:settings S-13 "Anslut kort".
- :core:design KvittDestination.Cards with credit_card and nav_cards (four destinations, D-172); the
  bar's labels shrink to fit at large font scales. :app routes, kvitt://cards/connected, bindings.
- docs/ux/strings.csv: the card keys of §13.3 plus K2's additions.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TQd3pEP9UeN2uifbHknQ7B

android/feature/account/src/main/kotlin/se/hagstedt/kvitt/feature/account/AccountDetailScreen.kt

@@ -71,6 +71,7 @@ data class AccountDetailActions(
     val onRetry: (AccountAction) -> Unit = {},
     val onMessageShown: () -> Unit = {},
     val onRefresh: () -> Unit = {},
+    val onFromCardPurchases: (AccountId) -> Unit = {},
 )
 
 /**
@@ -90,6 +91,7 @@ fun AccountDetailScreen(
     onArchived: (AccountId, String) -> Unit,
     onDeleted: () -> Unit,
     modifier: Modifier = Modifier,
+    onFromCardPurchases: (AccountId) -> Unit = {},
     snackbarHostState: SnackbarHostState = remember { SnackbarHostState() },
     viewModel: AccountDetailViewModel = hiltViewModel(),
 ) {
@@ -123,6 +125,7 @@ fun AccountDetailScreen(
         onRetry = viewModel::retry,
         onMessageShown = viewModel::messageShown,
         onRefresh = viewModel::refresh,
+        onFromCardPurchases = onFromCardPurchases,
     )
     AccountDetailContent(ui, actions, modifier, snackbarHostState = snackbarHostState)
 }
@@ -242,7 +245,16 @@ private fun OverflowMenu(ui: AccountDetailUi.Ready, actions: AccountDetailAction
                 properties = PopupProperties(focusable = true),
             ) {
                 KvittMenuContent(
-                    listOf(
+                    listOfNotNull(
+                        // AC-22.9: "Från kortköp" while the viewer has a card connection; local, so offline too (CP-9).
+                        if (ui.hasCardConnection && !archived) {
+                            KvittMenuItem(KvittIcon.CreditCard, stringResource(R.string.account_from_card_purchases)) {
+                                actions.onMenu(false)
+                                actions.onFromCardPurchases(ui.detail.account.id)
+                            }
+                        } else {
+                            null
+                        },
                         KvittMenuItem(KvittIcon.Edit, stringResource(R.string.account_edit), ui.canEdit, offlineReason) {
                             actions.onMenu(false)
                             actions.onEdit(ui.detail.account.id)

android/feature/account/src/main/kotlin/se/hagstedt/kvitt/feature/account/AccountDetailViewModel.kt

@@ -16,6 +16,7 @@ import se.hagstedt.kvitt.design.format.FAILURE_NETWORK
 import se.hagstedt.kvitt.model.AccountDetailState
 import se.hagstedt.kvitt.model.AccountId
 import se.hagstedt.kvitt.model.AccountRepository
+import se.hagstedt.kvitt.model.CardRepository
 import se.hagstedt.kvitt.model.ConnectivityRepository
 import se.hagstedt.kvitt.model.OnlineResult
 import se.hagstedt.kvitt.model.SyncRepository
@@ -59,7 +60,10 @@ sealed interface AccountEvent {
 sealed interface AccountDetailUi {
     data object Starting : AccountDetailUi
 
-    /** [refreshing]: a pull-to-refresh sync is running; the indicator stays until it ends (D-127). */
+    /**
+     * [refreshing]: a pull-to-refresh sync is running; the indicator stays until it ends (D-127). [hasCardConnection]:
+     * the viewer has a card connection, so the menu offers "Från kortköp" (S-27, AC-22.9).
+     */
     data class Ready(
         val detail: AccountDetailState,
         val online: Boolean,
@@ -70,6 +74,7 @@ sealed interface AccountDetailUi {
         val message: AccountMessage? = null,
         val event: AccountEvent? = null,
         val refreshing: Boolean = false,
+        val hasCardConnection: Boolean = false,
     ) : AccountDetailUi {
         val partner: User get() = detail.balance.partner
         val me: User get() = detail.users.firstOrNull { it.id != partner.id } ?: partner
@@ -107,11 +112,12 @@ class AccountDetailViewModel @Inject constructor(
     private val accounts: AccountRepository,
     private val connectivity: ConnectivityRepository,
     private val sync: SyncRepository,
+    cards: CardRepository,
 ) : ViewModel() {
     val id = AccountId(checkNotNull(savedState.get<String>(ARG_ACCOUNT_ID)) { "missing $ARG_ACCOUNT_ID" })
     private val local = MutableStateFlow(AccountLocal())
 
-    val ui: StateFlow<AccountDetailUi> = combine(accounts.detail(id), accounts.all(), connectivity.online, local) { detail, all, online, l ->
+    val ui: StateFlow<AccountDetailUi> = combine(accounts.detail(id), accounts.all(), connectivity.online, local, cards.hasConnection) { detail, all, online, l, card ->
         if (detail == null) {
             AccountDetailUi.Gone(l.event ?: AccountEvent.Gone)
         } else {
@@ -125,6 +131,7 @@ class AccountDetailViewModel @Inject constructor(
                 message = l.message,
                 event = l.event,
                 refreshing = l.refreshing,
+                hasCardConnection = card,
             )
         }
     }.stateIn(viewModelScope, SharingStarted.Eagerly, AccountDetailUi.Starting)

android/feature/account/src/main/res/values-sv/strings.xml

@@ -31,4 +31,6 @@
     <string name="account_editor_offline_body_edit">Konton sparas direkt på servern. Anslut telefonen till internet för att spara ändringen.</string>
     <!-- name_taken -->
     <string name="account_editor_name_taken">Det finns redan ett konto som heter %1$s</string>
+    <!-- S-5 overflow item while the viewer has a connection (AC-22.9), opens S-27 -->
+    <string name="account_from_card_purchases">Från kortköp</string>
 </resources>

android/feature/account/src/main/res/values/strings.xml

@@ -31,4 +31,6 @@
     <string name="account_editor_offline_body_edit">Accounts are saved straight to the server. Connect the phone to the internet to save the change.</string>
     <!-- name_taken -->
     <string name="account_editor_name_taken">There is already an account called %1$s</string>
+    <!-- S-5 overflow item while the viewer has a connection (AC-22.9), opens S-27 -->
+    <string name="account_from_card_purchases">From card purchases</string>
 </resources>

android/feature/account/src/test/kotlin/se/hagstedt/kvitt/feature/account/AccountScreenshotTest.kt

@@ -9,7 +9,9 @@ import org.robolectric.ParameterizedRobolectricTestRunner
 import org.robolectric.annotation.Config
 import org.robolectric.annotation.GraphicsMode
 import se.hagstedt.kvitt.design.format.FAILURE_NETWORK
+import se.hagstedt.kvitt.fakes.FakeCards
 import se.hagstedt.kvitt.fakes.FakeScenario
+import se.hagstedt.kvitt.fakes.cards.CardScenarios
 import se.hagstedt.kvitt.fakes.account.AccountScenarios
 import se.hagstedt.kvitt.model.AccountId
 import se.hagstedt.kvitt.design.testing.ScreenSnapshots
@@ -25,6 +27,8 @@ val accountStates: List<ScreenState> = listOf(
     detail("S-5-account-negative", AccountScenarios.loaded, AccountScenarios.huset),
     detail("S-5-account-archived", AccountScenarios.loaded, AccountScenarios.gotland),
     detail("S-5-account-menu", AccountScenarios.loaded, AccountScenarios.vardag) { it.setMenuOpen(true) },
+    // AC-22.9: with a card connection the menu starts with "Från kortköp".
+    detail("S-5-account-menu-card", AccountScenarios.loaded.copy(cards = FakeCards(connection = CardScenarios.connection)), AccountScenarios.vardag) { it.setMenuOpen(true) },
     detail("S-5-account-menu-deletable", AccountScenarios.empty, AccountScenarios.sommarstugan.id) { it.setMenuOpen(true) },
     detail("S-5-account-delete-confirm", AccountScenarios.empty, AccountScenarios.sommarstugan.id) { it.askDelete() },
     detail("S-5-account-empty", AccountScenarios.empty, AccountScenarios.sommarstugan.id),
@@ -85,7 +89,7 @@ class AccountScreenshotTest(private val state: String) {
         @JvmStatic
         @ParameterizedRobolectricTestRunner.Parameters(name = "{0}")
         fun states(): List<Array<Any>> = listOf(
-            "S-5-account", "S-5-account-negative", "S-5-account-archived", "S-5-account-menu", "S-5-account-menu-deletable",
+            "S-5-account", "S-5-account-negative", "S-5-account-archived", "S-5-account-menu", "S-5-account-menu-card", "S-5-account-menu-deletable",
             "S-5-account-delete-confirm", "S-5-account-empty", "S-5-account-offline", "S-5-account-error", "S-5-account-long",
             "S-5-account-refreshing",
             "S-6-account-editor-create", "S-6-account-editor", "S-6-account-editor-edit", "S-6-account-editor-decimals",

android/feature/account/src/test/kotlin/se/hagstedt/kvitt/feature/account/AccountStates.kt

@@ -23,7 +23,7 @@ fun args(id: AccountId?): SavedStateHandle = SavedStateHandle(if (id == null) em
 fun detailState(scenario: FakeScenario, id: AccountId, failWith: String? = null, act: (AccountDetailViewModel) -> Unit = {}): AccountDetailUi = withMain {
     val fakes = FakeRepositories(scenario)
     val accounts = if (failWith == null) fakes.accounts else FailingAccounts(fakes.accounts, failWith)
-    val vm = AccountDetailViewModel(args(id), accounts, fakes.connectivity, fakes.sync)
+    val vm = AccountDetailViewModel(args(id), accounts, fakes.connectivity, fakes.sync, fakes.cards)
     act(vm)
     vm.ui.value
 }

android/feature/account/src/test/kotlin/se/hagstedt/kvitt/feature/account/AccountViewModelTest.kt

@@ -6,7 +6,9 @@ import org.junit.Assert.assertNull
 import org.junit.Assert.assertTrue
 import org.junit.Test
 import se.hagstedt.kvitt.design.format.FAILURE_NETWORK
+import se.hagstedt.kvitt.fakes.FakeCards
 import se.hagstedt.kvitt.fakes.FakeRepositories
+import se.hagstedt.kvitt.fakes.cards.CardScenarios
 import se.hagstedt.kvitt.fakes.FakeScenarios
 import se.hagstedt.kvitt.fakes.account.AccountScenarios
 import se.hagstedt.kvitt.model.AccountId
@@ -105,11 +107,18 @@ class AccountDetailViewModelTest {
         assertEquals(AccountMessage.Failed("forbidden"), ui.message)
     }
 
+    @Test
+    fun fromCardPurchasesIsOfferedOnlyWithACardConnection() {
+        assertEquals(false, ready(detailState(AccountScenarios.loaded, AccountScenarios.vardag)).hasCardConnection)
+        val connected = AccountScenarios.loaded.copy(cards = FakeCards(connection = CardScenarios.connection))
+        assertEquals(true, ready(detailState(connected, AccountScenarios.vardag)).hasCardConnection)
+    }
+
     /** S-5 for Vardag in [scenario] whose sync waits for the test (pull-to-refresh, D-127); runs [block] with Main set. */
     private fun withGatedSync(scenario: FakeScenario, block: (AccountDetailViewModel, GatedSyncRepository) -> Unit) = withMain {
         val fakes = FakeRepositories(scenario)
         val sync = GatedSyncRepository(fakes.sync)
-        block(AccountDetailViewModel(args(AccountScenarios.vardag), fakes.accounts, fakes.connectivity, sync), sync)
+        block(AccountDetailViewModel(args(AccountScenarios.vardag), fakes.accounts, fakes.connectivity, sync, fakes.cards), sync)
     }
 
     private fun AccountDetailUi.Ready.pendingRows(): Int = detail.months.flatMap { it.rows }.count {