From b83465020a7a0e53a6ef85a768118a1aa5e3d498 Mon Sep 17 00:00:00 2001
From: Marcel <marcel@familienarchiv>
Date: Tue, 14 Apr 2026 13:07:39 +0200
Subject: [PATCH] fix(backend): store error rate for segmentation training runs

setCer() was called for recognition training but not for segmentation.
The OCR service now returns cer = 1 - accuracy for segtrain; persist it
so the admin panel can display Fehlerrate for both training types.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 .../org/raddatz/familienarchiv/service/OcrTrainingService.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/backend/src/main/java/org/raddatz/familienarchiv/service/OcrTrainingService.java b/backend/src/main/java/org/raddatz/familienarchiv/service/OcrTrainingService.java
index 9c8f4e5d..820ab2f5 100644
--- a/backend/src/main/java/org/raddatz/familienarchiv/service/OcrTrainingService.java
+++ b/backend/src/main/java/org/raddatz/familienarchiv/service/OcrTrainingService.java
@@ -162,11 +162,12 @@ public class OcrTrainingService {
             return Objects.requireNonNull(txTemplate.execute(status -> {
                 run.setStatus(TrainingStatus.DONE);
                 run.setCompletedAt(Instant.now());
+                run.setCer(result.cer());
                 run.setLoss(result.loss());
                 run.setAccuracy(result.accuracy());
                 run.setEpochs(result.epochs());
                 OcrTrainingRun updated = trainingRunRepository.save(run);
-                log.info("[trainingRun={}] Segmentation training completed — epochs={}", runId, result.epochs());
+                log.info("[trainingRun={}] Segmentation training completed — cer={} epochs={}", runId, result.cer(), result.epochs());
                 return updated;
             }));
         } catch (Exception e) {