Etapp 1: kroppsdata synkas mot servern + BMR + dagens kcal-mätare på Hem

- Profile/myProfile med heightCm/birthYear/sex (fallback mot äldre server),
  updateProfile-mutation i GymApi
- Kroppsdata sparas lokalt och synkas: serverns värden vinner, lokala pushas
  upp om servern är tom (migrerar vågens lokala data)
- Mifflin–St Jeor-BMR (data/Bmr.kt)
- Hemskärm: Dagens kalorier-kort — aktivt loggat (dagens pass), telefonen
  (platshållare för etapp 5) och passivt (BMR-andel av dygnet, tickar per
  minut). Uppmaning om kroppsdata saknas.
- Version 0.5.0

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01C2GA94E1f3cmrvdQLQhYdg

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

@@ -1,8 +1,10 @@
 package eu.brassepc.fitnessdroid.data
 
 import kotlinx.serialization.Serializable
+import kotlinx.serialization.json.buildJsonObject
 import kotlinx.serialization.json.decodeFromJsonElement
 import kotlinx.serialization.json.jsonObject
+import kotlinx.serialization.json.put
 
 @Serializable
 data class Profile(
@@ -10,6 +12,10 @@ data class Profile(
     val displayName: String? = null,
     val email: String? = null,
     val bodyWeightKg: Double? = null,
+    val heightCm: Double? = null,
+    val birthYear: Int? = null,
+    /** "male"/"female" — serverns konvention */
+    val sex: String? = null,
 )
 
 /** Autentiserade anrop mot gym-API:t. Query-strängarna speglar gymTrackerApi.js. */
@@ -18,14 +24,37 @@ class GymApi(
     private val auth: AuthRepository,
 ) {
     suspend fun myProfile(): Profile {
-        val data = client.execute(MY_PROFILE, token = auth.bearerToken())
+        // Fallback till gamla fältuppsättningen mot en äldre server.
+        val data = try {
+            client.execute(MY_PROFILE, token = auth.bearerToken())
+        } catch (e: GraphQlException) {
+            client.execute(MY_PROFILE_LEGACY, token = auth.bearerToken())
+        }
         val profile = data["myProfile"]?.jsonObject
             ?: throw GraphQlException(listOf("Kunde inte hämta profilen"))
         return client.json.decodeFromJsonElement(profile)
     }
 
+    /** Kroppsdata till servern. null = rör ej, -1/"" = rensa (serverns konvention). */
+    suspend fun updateProfile(heightCm: Double?, birthYear: Int?, sex: String?): Profile {
+        val data = client.execute(
+            "mutation(\$h: Float,\$y: Int,\$s: String){updateProfile(heightCm:\$h,birthYear:\$y,sex:\$s){username displayName email bodyWeightKg heightCm birthYear sex}}",
+            buildJsonObject {
+                heightCm?.let { put("h", it) }
+                birthYear?.let { put("y", it) }
+                sex?.let { put("s", it) }
+            },
+            auth.bearerToken(),
+        )
+        val profile = data["updateProfile"]?.jsonObject
+            ?: throw GraphQlException(listOf("Kunde inte spara kroppsdata"))
+        return client.json.decodeFromJsonElement(profile)
+    }
+
     companion object {
         private const val MY_PROFILE =
+            "query{myProfile{username displayName email bodyWeightKg heightCm birthYear sex}}"
+        private const val MY_PROFILE_LEGACY =
             "query{myProfile{username displayName email bodyWeightKg}}"
     }
 }