tests: generate JSON request body in capture-raw-stream-sample.sh and use --data-binary

[CJackHwang]

Motivation

• Avoid brittle shell JSON quoting when posting streaming chat requests and ensure the raw request body is sent exactly as generated to the local test server.

Description

• Create REQUEST_BODY via an inline python3 helper that JSON-encodes the model, stream, and messages payload to avoid shell escaping issues.
• Replace the inline -d JSON curl payload with --data-binary "${REQUEST_BODY}" so the request body is sent verbatim to the capture server.
• Remove the previous curl || true fallback and rely on the direct curl invocation to produce the streamed output file for capture processing.

Testing

• Ran the script tests/scripts/capture-raw-stream-sample.sh against the local test server and verified it produced openai.stream.sse, captures.json, and upstream.stream.sse files; the run completed successfully.

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Codex Task

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Project	Deployment	Actions	Updated (UTC)
ds2api	Ready	Preview, Comment	Apr 3, 2026 5:07am

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