fix(pi): say why text generation cannot load a model (#19070)

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Julius Marminge <julius0216@outlook.com>
1de7b16f5dScott Norteman committed on 10/20/2026, 4:18:03 AM· committed by GitHubparent4583cad
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