The WebUI gateway chat backend routed every browser chat turn through the
gateway's /v1/runs API whenever the gateway advertised approval/runs
support (gateway_chat.py capability gate). The runs API creates an isolated
Api_Server session per turn, so mid-conversation context was lost between
messages. Routing through /v1/runs is now gated behind an explicit opt-in
(_gateway_use_runs_api_enabled: HERMES_WEBUI_GATEWAY_USE_RUNS_API env var or
webui_gateway_use_runs_api config key, env-over-config precedence, default
off). The capability gate now requires BOTH the opt-in flag AND gateway
approval support before using /v1/runs; otherwise normal chat stays on
/v1/chat/completions, preserving the session via X-Hermes-Session-Id.
Operators who want the in-gateway-chat approval-events flow re-enable it
with the flag.
Co-authored-by: Rod Boev <rod.boev@gmail.com>
Approve/deny on a remote-gateway backend now forwards to the gateway runs API
(run_id server-derived, existing auth+CSRF preserved, capability-probed + 60s
cached). Non-gateway/local approval path unchanged — relay only fires when a
session has an active gateway run (_STREAM_RUN_IDS). Old gateways get a clear
upgrade message instead of a silent no-op.
Co-authored-by: rodboev
Co-authored-by: nesquena-hermes <agent@nesquena-hermes>