Adds stream=true support to POST /v1/chat/completions (it previously 400'd).
When streaming, it runs the no-tools `conversational` agent via
`claude -p --output-format stream-json --include-partial-messages --verbose`
and relays each content_block_delta as an OpenAI chat.completion.chunk SSE
event, ending with finish_reason=stop + [DONE]. Free CLI/subscription auth, no
tools, no API key.
Stateless by design: the full message history is flattened into the prompt
(prior assistant turns kept), so an OpenAI-style client that re-sends history
each turn — e.g. Pipecat's OpenAILLMService — can stream from us directly. The
non-streaming path (recruiter-triage workspace agent) is unchanged.
This is phase 1 of the Pipecat realtime full-duplex voice-agent rebuild for
portal-assistant (continuous audio, VAD endpointing, barge-in, ~seconds to
first words). New pure helpers (stream_argv/delta_text/openai_chunk/
synthesise_chat_prompt) are unit-tested; the SSE endpoint has a mocked-subprocess
integration test. 429 passing.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The portal-assistant voice gateway needs a Claude that is conversational, free
(on the cluster subscription, no metered API), and safe to sit behind a public
edge. Add POST /v1/conversational: it drives a new no-tools `conversational`
agent with per-conversation --resume so a voice turn keeps context, and is lean
on purpose — no workspace clone, no tools, and crucially NO
--dangerously-skip-permissions (so even a leaked agent can't execute anything).
This is deliberately NOT /v1/chat/completions, which clones the git-crypt infra
repo and runs a Bash-enabled agent per turn (portal-assistant ADR-0002).
The conversational agent replies in the speaker's language (Bulgarian/English),
short and TTS-friendly. Tests cover the argv builder (new vs resume), the happy
path, multi-turn resume across calls, auth, and failure → 503. Full suite green.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
