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e5c95e0449
A model whose ModelFile is a single file (e.g. sherpa-onnx VITS/piper: the .onnx) failed to load on remote worker nodes because the sibling assets the backend resolves from the model dir — tokens.txt, lexicon.txt, the espeak-ng-data / dict directories, Kokoro's voices.bin — were never staged. Only the declared ModelFile was shipped, so the worker hit "failed to create sherpa-onnx TTS engine" and TTS produced no audio. Lean on the existing option-path staging instead of hardcoding filenames: - stageGenericOptions now also resolves an option value relative to the model's own directory (not just the frontend models dir), so a shared config can declare companions with bare names regardless of whether Model includes a subdirectory; and it expands directory-valued options (e.g. espeak-ng-data) file-by-file rather than handing a directory fd to the stager. - gallery/sherpa-onnx-tts.yaml declares the companion assets as option paths (tokens, lexicon, espeak-ng-data, voices.bin, dict, per-lang lexicons). The backend ignores these keys and keeps resolving siblings from the model dir; they exist only so distributed staging ships them. Absent files are skipped. Adds router_optionstage_test.go covering file + directory companion staging via the model-dir fallback. Co-authored-by: Ettore Di Giacinto <mudler@localai.io> Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>