* feat(ai): route xAI models through Responses and default to Grok 4.6
Send built-in xAI catalog models through the Responses API with
store: false and include reasoning.encrypted_content so encrypted
reasoning is requested and replayed, including future models.dev
additions. Thinking levels come from models.dev reasoning_options
(grok-4.6 exposes xhigh); models without verified options
(grok-build-0.1) keep reasoning always on and never send unsupported
"none"/"minimal" efforts. Narrow the xAI provider to the Responses API,
send pi's runtime User-Agent on xAI requests for provider-side
attribution, and make Grok 4.6 the default xAI model.
* fix(ai): drop duplicate xAI encrypted-reasoning tests
Azure already covers the shared replay path; keep the xAI-specific include-without-effort case next to the existing request tests.
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Co-authored-by: Jaaneek <Jaaneek@users.noreply.github.com>
Keep the stable socket in an opaque detached coordinator while server processes own detached worker discovery and lifecycle. Remove the public drain RPC in favor of server replacement through coordinator routing.
The login-time policy updates can drain the Copilot API rate-limit
bucket, in which case the follow-up GET /models is rejected with 429
(observed response: retry-after: 2, body 'too many requests') and login
aborts. Honor Retry-After and retry once instead of failing (#8121).
Batching policy POSTs at concurrency 4 still bursts 30 requests during
login, which trips the Copilot API rate limiter and makes the following
GET /models fail with 429, aborting login (#8121). Send the policy
updates one at a time instead.
Coordinate create and fork operations by cwd and session ID so only the first caller can publish a destination.
Split destination-reservation conformance from active-source snapshot coordination.
Extract shared fork snapshot planning from the memory repository and use it to atomically publish JSONL branch and tree forks.
Split fork conformance into behavior and coordination cases so JSONL runs its currently supported behavior.
