ca8c78e588
Two switch-time regressions from the multi-profile rail work: - "Session not found" (4007): pruneSecondaryGateways idle-reaps a non-active profile's backend; switching back respawns a *fresh* backend that mints new runtime ids, but runtimeIdByStoredSessionId is never pruned. resumeSession's cache fast-path then makes a dead runtime id active and returns, so session.usage + the next prompt 404. Probe the cached id; on rejection drop the stale mapping and fall through to a full resume that rebinds a live id. - "Forgets the LLM setting": $currentModel is a nanostore set only by refreshCurrentModel (gatewayState->open, etc). A swap fires invalidateQueries() (react-query only) and keeps the socket 'open', so the model/pill kept showing the previous profile. Re-pull both when $activeGatewayProfile changes.