Show retrain progress in Android

tests/test_training_coordination.py

@@ -20,6 +20,15 @@ def test_training_coordinator_claims_and_completes_job(tmp_path) -> None:
     assert claimed["job"]["id"] == job_id
     assert coordinator.status()["active_job"]["status"] == "running"
 
+    progress = coordinator.progress(
+        job_id,
+        {"status": "running", "phase": "training", "progress_percent": 42, "message": "epoch 1"},
+    )
+
+    assert progress["job"]["phase"] == "training"
+    assert progress["job"]["progress_percent"] == 42
+    assert coordinator.status()["active_job"]["message"] == "epoch 1"
+
     completed = coordinator.complete(job_id, {"success": True, "message": "ok"})
 
     assert completed["job"]["status"] == "completed"