The reconnect and boot paths resolved the WS URL with
`(await getGatewayWsUrl().catch(() => null)) || conn.wsUrl`. For OAuth
gateways the cached conn.wsUrl carries a single-use, ~30s-TTL ticket; the
desktop connection is memoized for the process lifetime, so on reconnect
that ticket is both expired and already consumed. A failed fresh mint
therefore fell back to a guaranteed-dead ticket and surfaced as an opaque
"connection closed", masking the gateway's actionable "session expired,
sign in again" message.
Extract resolveGatewayWsUrl() (with unit tests): in OAuth mode a mint
failure throws a tagged GatewayReauthRequiredError instead of falling back;
token/local modes keep the long-lived-token fallback. Thread that error
through the reconnect path so requestGateway surfaces the reauth message
rather than the generic transport error that triggered the retry.
Co-authored-by: Kenmege <205099287+Kenmege@users.noreply.github.com>
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