expo-litert-lm — Per-chunk capture for mediapipe#6298

Records every partial string delivered to the streaming callback so we can see exact token boundaries. Pinned to latest stable `@mediapipe/tasks-genai@0.10.27`.

Checking environment…

Model file:

(pick a .litertlm or .task — runtime auto-detected by magic bytes)

Backend (MediaPipe):

Backend (LiteRT-LM):

Prompt:

Chat template:

peak — MB

pick a model file