Marcel 74c9046745 fix(ocr): narrow exception handling and add unit tests for ensure_blla_model ...

- _model_is_loadable: narrow bare except to (RuntimeError, OSError, ValueError)
  with DEBUG-level fallback for unexpected exceptions — prevents silent masking
  of missing kraken install or AttributeError on vgsl
- _run_segtrain: replace bare except:pass with log.warning so height-check
  fallback is visible in container logs
- New test_ensure_blla_model.py: covers model-OK early return, incompatible
  model rename+replace, and missing model download paths

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

2026-04-14 21:17:53 +02:00

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