logger.exception call in saveBayesianPlot has format/arg mismatch

[rozyczko]

Source: EasyReflectometryApp/Backends/Py/analysis.py:1354 — DEEP_ANALYSIS.md §5 item 1

logger.exception('Failed to save Bayesian plot to %s', save_path, exc)

The format string has one %s but two arguments are passed (save_path, exc). The logging call itself raises a formatting error (caught and printed by the logging machinery) every time this error path runs.

Fix: Drop exc — logger.exception already appends the traceback.