fix tränings länken och race day

tests/public_training_profile.test.js

@@ -100,6 +100,7 @@ test("public profile contains only the selected driver's sanitized aggregates",
   assert.equal(profile.goals[0].percent, 80);
   assert.equal(profile.classProfiles.length, 2);
   assert.equal(profile.classProfiles[0].stats.totalLaps, 4);
+  assert.equal(profile.classProfiles[0].stats.achievements.find((item) => item.id === "first_session").unlocked, true);
   assert.deepEqual(profile.classProfiles[0].channelStats, {
     splitCount: 2,
     bestSplitMs: 7000,
@@ -122,6 +123,26 @@ test("public profile contains only the selected driver's sanitized aggregates",
   assert.equal(serialized.includes("secret-decoder"), false);
 });
 
+test("public profile exposes only class-scoped development trends and achievements", () => {
+  const now = Date.now();
+  const state = buildState(now);
+  state.training.ledger = Array.from({ length: 60 }, (_, index) => ({
+    driverId: "driver_1",
+    sessionId: "practice_2wd",
+    timestamp: now - (60 - index) * 18_000,
+    lapMs: index < 30 ? 18_000 : 17_000,
+  }));
+  const profile = buildPublicTrainingProfile(state, DRIVER_ONE_TOKEN, "");
+  const twoWheelDrive = profile.classProfiles.find((item) => item.classId === "class_1");
+  const fourWheelDrive = profile.classProfiles.find((item) => item.classId === "class_2");
+
+  assert.equal(twoWheelDrive.stats.trendSampleReady, true);
+  assert.equal(twoWheelDrive.stats.averageTrendMs, 1_000);
+  assert.equal(twoWheelDrive.stats.achievements.find((item) => item.id === "controlled_5").unlocked, true);
+  assert.equal(fourWheelDrive.stats.totalLaps, 0);
+  assert.equal(fourWheelDrive.stats.trendSampleReady, false);
+});
+
 test("public timer window freezes aggregates after the personal session", () => {
   const now = Date.now();
   const profile = buildPublicTrainingProfile(buildState(now), DRIVER_ONE_TOKEN, "", now - 30 * 60000, 20 * 60000);