setup.runtime_check and setup.status are polled by the Desktop frontend on
connect and periodically (use-status-snapshot → evaluateRuntimeReadiness), but
neither was in _LONG_HANDLERS — so dispatch() ran both inline on the WS reader
thread. Under GIL pressure from concurrent agent turns (terminal I/O, large
output, background-process completions) either can block for seconds:
- setup.runtime_check → resolve_runtime_provider() (config read, auth check,
may probe the provider endpoint)
- setup.status → _has_any_provider_configured() (provider config + credential
scan)
While either blocks the reader thread the WS read loop can't service later
requests; the frontend RPC timeout fires, the client drops the socket, and the
lost setup.runtime_check response reads as ready=false — a false "needs setup"
/ "Settings failed to load" even though the provider is configured.
Route both to the RPC pool (same precedent as #55545's session.list/pet.info/
process.list). The handlers are read-only and pool writes go through the
lock-guarded write_json, so there's no ordering or safety concern.
Test asserts all 5 frontend-polled RPCs are pool-routed.
Co-authored-by: izumi0uu <izumi0uu@gmail.com>
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