Grund: Compose-app med login mot gym-API:t, VS Code-task och CI-release

- Kotlin + Jetpack Compose + Material 3, minSdk 31 (Android 12)
- GraphQL-klient (OkHttp) med login/refresh/validate/logout som webben
- Tokenlagring i DataStore, auto-refresh av JWT
- Signering via gitignorerad signing/ lokalt och Actions-secrets i CI
- VS Code build-task -> build/FitnessDroid.apk
- Gitea Actions: bygger APK på Pi5 (arm64, aapt2-override) och publicerar
  rullande latest-release

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Kf4MAbZ3c3B4Xy5XfuGsCP

app/src/main/java/eu/brassepc/fitnessdroid/data/GymApi.kt

@@ -0,0 +1,31 @@
+package eu.brassepc.fitnessdroid.data
+
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.json.decodeFromJsonElement
+import kotlinx.serialization.json.jsonObject
+
+@Serializable
+data class Profile(
+    val username: String,
+    val displayName: String? = null,
+    val email: String? = null,
+    val bodyWeightKg: Double? = null,
+)
+
+/** Autentiserade anrop mot gym-API:t. Query-strängarna speglar gymTrackerApi.js. */
+class GymApi(
+    private val client: GraphQlClient,
+    private val auth: AuthRepository,
+) {
+    suspend fun myProfile(): Profile {
+        val data = client.execute(MY_PROFILE, token = auth.bearerToken())
+        val profile = data["myProfile"]?.jsonObject
+            ?: throw GraphQlException(listOf("Kunde inte hämta profilen"))
+        return client.json.decodeFromJsonElement(profile)
+    }
+
+    companion object {
+        private const val MY_PROFILE =
+            "query{myProfile{username displayName email bodyWeightKg}}"
+    }
+}