Reads Ollama's NDJSON stream (one JSON object per line) and emits
provider.StreamEvent values for text, thinking, tool-call start/delta/end,
and a final Done event carrying assembled Response and Usage. Uses
bufio.Scanner with a 4 MiB max-line buffer so multi-KB tool-call deltas
parse cleanly, and accepts tool-call arguments delivered either as
escaped string fragments (delta-style) or a complete JSON object
(one-shot).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
steve
f70c7c0842