haileymarshall 49282b6e04 fix(gemini): assign unique stream indices to parallel tool calls ...

The streaming translator in agent/gemini_cloudcode_adapter.py keyed OpenAI
tool-call indices by function name, so when the model emitted multiple
parallel functionCall parts with the same name in a single turn (e.g.
three read_file calls in one response), they all collapsed onto index 0.
Downstream aggregators that key chunks by index would overwrite or drop
all but the first call.

Replace the name-keyed dict with a per-stream counter that persists across
SSE events. Each functionCall part now gets a fresh, unique index,
matching the non-streaming path which already uses enumerate(parts).

Add TestTranslateStreamEvent covering parallel-same-name calls, index
persistence across events, and finish-reason promotion to tool_calls.

2026-04-20 02:10:53 -07:00

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