b6d9f9a1cf
Add PrintShapes() helper that writes input/output name, shape, and dtype for each InferenceSession to stderr at construction time, prefixed with [wakeword-model]. Called after each of the three session creations so the geometry is visible on first run without grep-ing logs. Also rephrase the stale "FIXED:" comment on the mel Dimensions[2] indexing to plain explanatory text that describes the current invariant.