app: debug-only Hilt bindings of every :core:model interface to the fakes (temporary until M8)

Features' @HiltViewModel classes need bindings in :app's graph; until M8 binds :data, debug builds bind
FakeRepositories(FakeScenarios.empty). Debug source set only; M8 deletes the file.

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

android/app/src/debug/kotlin/se/hagstedt/kvitt/debug/DebugFakesModule.kt

@@ -0,0 +1,53 @@
+// Temporary until M8 binds :data; M8 deletes this file.
+package se.hagstedt.kvitt.debug
+
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import se.hagstedt.kvitt.fakes.FakeRepositories
+import se.hagstedt.kvitt.fakes.FakeScenarios
+import se.hagstedt.kvitt.model.AboutRepository
+import se.hagstedt.kvitt.model.AccountRepository
+import se.hagstedt.kvitt.model.AnalyticsRepository
+import se.hagstedt.kvitt.model.CategoryRepository
+import se.hagstedt.kvitt.model.ConnectivityRepository
+import se.hagstedt.kvitt.model.DeviceRepository
+import se.hagstedt.kvitt.model.ExpenseRepository
+import se.hagstedt.kvitt.model.HomeRepository
+import se.hagstedt.kvitt.model.InviteRepository
+import se.hagstedt.kvitt.model.ProfileRepository
+import se.hagstedt.kvitt.model.RecurringRepository
+import se.hagstedt.kvitt.model.SessionRepository
+import se.hagstedt.kvitt.model.SettlementRepository
+import se.hagstedt.kvitt.model.SyncRepository
+import se.hagstedt.kvitt.model.UpdateRepository
+import javax.inject.Singleton
+
+/**
+ * Debug builds only (src/debug): binds every `:core:model` repository interface of SPEC §14.2.4 to one set of fakes at
+ * [FakeScenarios.empty], so the features' `@HiltViewModel`s have bindings in the debug graph before M8 binds `:data`.
+ * Fakes never reach a release build: this source set and `debugImplementation(project(":core:fakes"))` are debug only.
+ */
+@Module
+@InstallIn(SingletonComponent::class)
+object DebugFakesModule {
+    @Provides @Singleton
+    fun fakes(): FakeRepositories = FakeRepositories(FakeScenarios.empty)
+
+    @Provides fun session(f: FakeRepositories): SessionRepository = f.session
+    @Provides fun home(f: FakeRepositories): HomeRepository = f.home
+    @Provides fun accounts(f: FakeRepositories): AccountRepository = f.accounts
+    @Provides fun expenses(f: FakeRepositories): ExpenseRepository = f.expenses
+    @Provides fun settlements(f: FakeRepositories): SettlementRepository = f.settlements
+    @Provides fun analytics(f: FakeRepositories): AnalyticsRepository = f.analytics
+    @Provides fun profile(f: FakeRepositories): ProfileRepository = f.profile
+    @Provides fun categories(f: FakeRepositories): CategoryRepository = f.categories
+    @Provides fun recurring(f: FakeRepositories): RecurringRepository = f.recurring
+    @Provides fun devices(f: FakeRepositories): DeviceRepository = f.devices
+    @Provides fun invites(f: FakeRepositories): InviteRepository = f.invites
+    @Provides fun sync(f: FakeRepositories): SyncRepository = f.sync
+    @Provides fun update(f: FakeRepositories): UpdateRepository = f.update
+    @Provides fun about(f: FakeRepositories): AboutRepository = f.about
+    @Provides fun connectivity(f: FakeRepositories): ConnectivityRepository = f.connectivity
+}