TranscriptEndpoint, DiarizationEndpoint and SoundClassificationEndpoint
returned the raw c.FormFile("file") error. Echo turns a non-HTTPError into
a 500, so a request with no multipart boundary or no file field looked like
a server fault. This became visible in tests/e2e once the suite registered
a transcription-capable model (lp-transcription) at runtime: the
default-model middleware then resolves a model, the request reaches the
handler, and "should return mocked transcription" got a 500 in some spec
orders (seed 1790493709).
Read the upload through a small uploadedFile helper that maps any
FormFile failure to 400 with the field name and parser reason. Server-side
failures after that (temp dir, file create, copy) stay 500. The image and
LocalAI upload endpoints already return 400 here.
Assisted-by: Claude:claude-opus-5-5
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Ettore Di Giacinto
14c692098e