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>
Non-streaming /api/chat support including:
- Vision via images: []base64
- Tool calls on assistant + tool-role response messages
- think field accepting string reasoning levels (or "true"/"false")
- Authorization header when apiKey is non-empty (cloud mode)
Tool-call arguments are passed as JSON objects to the wire and surfaced
as JSON-string Arguments on provider.ToolCall. Tool calls are assigned
synthetic IDs (tc_<index>) when Ollama omits one, so the round-trip
back as an assistant tool_calls + tool-role message remains correlated.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
steve