refactor(core): MP-25 Move User and AuthToken to core-domain

frontend/core/domain/build.gradle.kts

@@ -0,0 +1,40 @@
+@file:OptIn(ExperimentalKotlinGradlePluginApi::class)
+
+import org.jetbrains.kotlin.gradle.ExperimentalKotlinGradlePluginApi
+import org.jetbrains.kotlin.gradle.dsl.JvmTarget
+
+plugins {
+  alias(libs.plugins.kotlinMultiplatform)
+  alias(libs.plugins.kotlinSerialization)
+}
+
+kotlin {
+  val enableWasm = providers.gradleProperty("enableWasm").orNull == "true"
+
+  jvmToolchain(21)
+
+  jvm()
+  js {
+    browser {
+      testTask { enabled = false }
+    }
+  }
+
+  if (enableWasm) {
+    @OptIn(org.jetbrains.kotlin.gradle.ExperimentalWasmDsl::class)
+    wasmJs { browser() }
+  }
+
+  sourceSets {
+    commonMain.dependencies {
+      implementation(libs.kotlinx.serialization.json)
+    }
+  }
+}
+
+tasks.withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile> {
+  compilerOptions {
+    jvmTarget.set(JvmTarget.JVM_21)
+    freeCompilerArgs.addAll("-opt-in=kotlin.RequiresOptIn")
+  }
+}

frontend/core/domain/src/commonMain/kotlin/at/mocode/frontend/core/domain/models/AuthToken.kt

@@ -0,0 +1,10 @@
+package at.mocode.frontend.core.domain.models
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class AuthToken(
+  val accessToken: String,
+  val tokenType: String = "Bearer",
+  val expiresAtEpochMillis: Long? = null
+)

frontend/core/domain/src/commonMain/kotlin/at/mocode/frontend/core/domain/models/User.kt

@@ -0,0 +1,11 @@
+package at.mocode.frontend.core.domain.models
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class User(
+  val id: String,
+  val username: String,
+  val displayName: String? = null,
+  val roles: List<String> = emptyList()
+)